How to check marine exhaust manifolds. He said manifolds failure now occur because of cracking vs.

How to check marine exhaust manifolds Removal & ReplacingTo watch the video with subtitles visit our website htt Visual inspection of exhaust manifold and risers Mercury marine engine 5. Tricks of the trade. Look for features like mandrel-bent tubing, which allows for smoother airflow and increases horsepower output. Install new exhaust manifolds. The exhaust comes out of each exhaust port then each port is ran to a exhaust pipe and exhaust ran out the back. $358. I wish that the industry would have used the terms "open" system (i Detroit Diesel 853 talking about the manifold and finding a coolant leak and fixing with JB weld. stays steady and there Sometimes it cools down other time it gets hot. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Learn to weld a cast iron boat exhaust manifold with Muggy Weld exhaust manifold repair kit. Installing Manifolds Doesn't Have To Be Difficult! Let Us Show You How Eas Hey Everyone! I'm back! In this episode, I remove the risers and exhaust manifolds to inspect them. In this article, we will look at the working, Our selection of performance boat exhaust manifolds and parts features top-quality products from Indmar Marine. ) I don't want to order exhaust manifolds if I need a whole new engine at that point it might be time to walk away from this boat! manifolds look in the sticky section of the forum and in there it will tell you and show how to test for leaks in the manifold by using acetone to EXHAUST SYSTEMS; EXHAUST MANIFOLDS; Ford Exhaust Manifold (Aluminum),FM-1-92; Ford Exhaust Manifold (Aluminum),FM-1-92. the issue is the exhaust manifold and riser on the port side of the engine get too hot to touch after only a couple of minutes of average use (cruising at 2200 rpm). Available with Hardin Marine Stainless Steel tailpipes or standard cast aluminum risers, these kits are designed to replace Mercruiser #807078T10 and 89011A8 Manifolds, and #807988A03 and 44354A3 Risers in BBC applications. 1 / 496 Merc With Stainless Risers With Special Brackets. Our extensive Technical Library that's loaded with great articles explaining How To and Why when it comes to the Marine Exhaust System. on engine. Gil Exhaust Systems perform better because they're made better, with great attention to detail in design, engineering and manufacturing. The riaser extends to the back of the manifold. I'm planning on doing the risers/elbows on both sides, on the fence about the exhaust manifolds. That will at least get me back to half way finished. use an oxy/acetylyne rig and burn them off(my personnal favorite) or a sawzall (reciprocating saw) with a good carbide blade and cut the manifold runner near the head. Compare . First, a bit of background. Symptoms: Low compression, bad idle, rough running, starti Removed the exhaust manifold. 5″ OD) 90 Degree Elbow "Im wondering if anyone has ever built their own marine exhaust manifold? This is the water cooled style. Inspect the turbo mounting for any cracks or erosion. Welding Cast Inboard Outboard Exhaust Manifold Crack Repair with 3/32” 7018 low hydrogen stick weld rod. It collects exhaust gases from the engine’s cylinders and directs them out of the engine. , on MerCruiser engines). I developed a knocking sound mid season thought it was backlash in engine or pressure plate on transmission. This measurement is to measure how hot the actual dry exhaust gasses are before they are mixed with raw cooling water. Tstat housing is the factory marine unit and does not have check balls. R. e. Water cooled exhaust manifold for starboard side (right). 7L/350ci engines. 150”. They can be removed and inspected to check before There is a water jacket that surrounds the exhaust manifold and the riser, which is mounted to the manifold with a gasket between them. 0L/305ci and 5. Install updated exhaust manifold mounting bolts and spacers. you may want to check out Marysville Marine is a wholesale distributor of marine engine parts, fuel components, plumbing, steering, controls, electrical equipment, oil and more. Scrap the manifold mounting surface clean. I bought a '95 Sea Ray 270 Sundancer last season. These exhaust pipes are designed to keep cooling water separated from the exhaust flow to avoid corrosion of valves, rings and The manifolds and the risers are original and are now 27 years old. This 3. I use my boat nearly e The water ports of my raw water exhaust manifold are clogged with a thick, pasty grease material that only lets water trickle through. Shows how to replace the manifold and riser on a 5. Direct Replacement for Model Years: 2001 - 2011. Inspect the head for cracks, erosion, and or fretting. Im needing something for a straight six inboard engine? Now, to the exhaust, the factory manifold only has around a 2" square opening, we would like to get around a 2 1/2". The simplest and least time‑consuming way is the exhaust elbow removal method. I guess I'm going to need a BFH and some eye and ear protection. Spray the soapy mixture onto the exhaust manifold where it connects to your engine. 0, 6. So I pulled the manifold and coolant tank. This all started with coolant in the cylinder in my buddies 3. Marine exhaust manifolds stand out as a crucial component of marine engines that significantly impact engine performance. I would check into the motor problems your having. However, I Drain the water from your engine’s risers and manifolds in order to perform a visual inspection. Reviews (0) Current stock: 0. If they check out, plug the water outlet and inlet fittings at the T stat housing and pressure test the block. Rather than drop $500 or more on a new manifold, I wanted to see if the cracks could be sealed up without remo In this video we show you HOW TO REMOVE and REPLACE MERCRUISER RISERS & MANIFOLDS. Home; Welding Products; Knowledge Center; FAQs; About Us; Contact Us; Check Out These Products. g. Just wondering if any. Part No. The exhaust manifolds and risers on your boats engine guide the exhaust gases out of your engine block to the exterior of the boat. 531278; 531279; 31078; Complete Exhaust How to inspect and tell if your manifolds and risers need your attention, or to be changed. 7. 2 marine engine applications. The hot exhaust temps are buffered by the water jacket. Marine Exhaust Manifolds, Risers, and Elbows Boatman&#39;s iNet Marine sells the most complete line of aftermarket and original equipment exhaust systems, period! We sell Barr, HGE, Osco, and Sierra&#39;s complete line of exact replacement and generic exhaust systems as well as original equipment by MerCruiser, OMC, Volvo, Caterpillar, Crusader, Pleasurecraft Marine, Easy way to install exhaust manifolds on boat without scratching paint or damaging gasket. I've tried carburetor cleaner, Prestone radiator flush, sulfuric acid, lye, Dawn and CLR. One of my old friends used to add a 'glowing dye' to the coolant passages when looking for troublesome leaks. 8. to/2AiXQ9ZWill the Right Stuff silicone hold u What people don't seem to appreciate about marine exhausts is the volumn reduction effect of the water injection. Get the engine ready. Now take some duct tape and using three or four long strips, cover the exhaust chambers. I'm paranoid about them failing and trashing my engine due to water ingestion. Dry joints look as if they have "outriggers" coming from just above the mounting surface down towards the exhaust manifold. These manifolds are Gilcoated inside and out, proven to protect better than conventional marine coatings. 700” and 1. ya Stainless Marine Manifolds & Exhaust Systems. Even if the manifold is not overheated, it can cause expensive problems. Pop Quiz: The owner of a 25' powerboat hops aboard his boat one day to go for a cruise, but his inboard V-8 engine is slow to start. Water cooled exhaust manifold for Ford V8 marine engine applications. I did not find obstructions in thermostat housing. The exhaust gases coming out of your boats engine are very hot. On Amazon:*PERMATEX THE RIGHT STUFF: https://amzn. If you're really stuck, visit the Help Center to contact Customer Service. You’ll find everything you need for boat exhaust systems here, from marine engine exhaust risers, manifolds and mufflers to exhaust manifold drain plugs and base hardware. Being an '03 you might have dry exhaust. Your advice Jeff on how to remove the manifolds and risers is much appreciated. Step 2: Check Exhaust Manifold Gaskets. Genuine Indmar Part. Mounting hardware(491006), manifold/head gasket(CHV-47-0000) and riser gasket(532010) sold separately. 7 Liter GM application. Start your inspection at the exhaust manifold, which might have either a “riser” (it sort of resembles a sink trap turned upside-down) or a simple exhaust elbow bolted to it. I'm now looking at In this video I show how I installed the intake/exhaust manifold on a Mercruiser 3. Also doing new serpentine belts, impellers, spark plugs, MSD wires from hardin-marine, thermostats, and all new hoses with new clamps the "deferred" maintenance by the prior owner cost me about $10k. If I get all Marine exhaust manifolds come with various performance features that can improve the overall performance of your boat’s engine. Hi-Tek Exhaust Systems. Description; Reviews (left). MarineEngine. "Funny but my manifolds and elbows do have paint on them that looks new. Personally, I would probably replace it if the crack is a concern. 4L Mercruiser 350hrs. If your in fresh water I doubt manifolds would be bad unless cracked. So we swapped out the exhaust manifold on Erics port Volvo. Once you take the risers off the manifolds are easy. These manifolds are raw aluminum color and say Malibu on them. Visit for products, prices, deals and more! Exhaust Manifolds Sort By. 00. All V-8 and V-6 engines, for instance, have a separate exhaust manifold along the side of each cylinder bank. Also check the hump in the exhaust pipe where it stretches to cover the rear axle. Perhaps another opinion. Crusader manifolds Check it out. He continues to run the The exhaust manifold is an important component of your vehicle’s exhaust system that collects the exhaust gases from the engine and directs them through the exhaust pipes and out of the vehicle. Wipe down with laquer thinner. I don't know what engines they used them on. Extend the life of the engine exhaust manifolds risers. If they look good I might use em about another 2 This is where people loose an engine is it's sitting with salt water in it. I think the exhaust manifolds are original on both engines. It can be installed in any flat surface, at least 6 inches before the EXHAUST SYSTEMS; EXHAUST MANIFOLDS; Detroit Diesel Exhaust Manifold (V8 8. so check the castings every year, after Re: How to clean out exhaust manifold? Fully submerge the manifold and riser (separately) in full strength muratic acid for 90 minutes, then rinse throughly. It's off of a 2 cyl diesel, MD6A. 2, 7. Pictures below are an isolated view of the manifold and the engine as a whole. In a "salt water" environment, you can figure on replacing the elbows (and risers, if equipped) every 4 to 7 years. 0 MPI, MerCuiser 260Hp. If you are in salt water, the engine needs only minor neglect before exhaust becomes corroded. Both engines run about 180 degrees now although the port engine heats up a lot faster and gets a little hotter if I push it. Indmar used 2 different lengths. Add to cart. Port side exhaust manifold and riser stay cool. I have an '88 Trojan with about 700 hours. I do see some help here, marine exhaust manifolds are painted black for a reason as black dissipates the heat best and on those thick castings the This is where people loose an engine is it's sitting with salt water in it. I also give the motor a good cleaning and touch up some Chrysler Marine inboard parts Crusader Marine parts MerCruiser sterndrive parts OMC sterndrive parts Pleasurecraft Marine 807988-0 but can't see the actual p/n on the exhaust manifolds. Two methods can be used to check for water in the Marine Exhaust Manifolds. One place to check on stainless exhaust parts might be Stainless Marine in Florida Keeping a wary eye on raw-water cooled manifolds and risers can prevent the premature death of your engine. 7 exhaust diagram to understand the layout and components of the exhaust system. The most important part of keeping the exhaust system running is the preparation. Complete instructions for DIY marine repairs. Open the Universal Marine Exhaust Systems Replacement exhaust manifolds for Universal Marine Engines. , and starting fresh. 0's is people open the drains, the hot water comes steaming out so it looks like they are winterizing just fine, but then a chunk of rust comes floating by and plugs the drain, leaving the block or manifold half full of water. Also possible intake manifold blockage as well. I respect your restraint! Many would have resorted to dynamite or etc by now. Quick, Easy, and saves money. even the Marine Heat Exchanger manufacturers refer to these as "FWC" kits. What about marine generator exhaust elbows? Don’t forget about your generator elbow too! Pending it’s construction material, it will need regular inspection or replacement based on the above guide. I drained the coolant from the exhaust manifolds and removed the four nuts on the riser studs. Compare Please Note. This is not intended to be a debate on whether or not I should buy a new exhaust system I removed the exhaust on one engine to check their condition. Also Replaces Manifold Part #'s. I would leak test - put water into the water inlet, with a minor restriction at the outlet, and check to see that the exhaust part stays dry and water doesn't exit the jacket anywhere else. The standard setup for most manifolds is just like a car. Be the first to review this product. My water adapters had a hot spot where the Crusader Blue spray can paint had yellowed but after getting a bit more coolant there, a new shot of spray seems to be holding up quite well. Looks like a set of Sierra manifolds and risers costs $650 compared to $850 for the merc manifolds. I'm in the process of pulling the exhaust manifold and while I'm doing that I want to check for other sources for the water in the oil. Jason. 3-M3 430/450 Exhaust Manifold (5527131, 3922935) quantity. Used in Detroit Diesel V8 8. Be the first to 20 PSI (most city water is at least 40 PSI) is a lot of pressure on an old copper manifold, and you'd just as likely blow out a joint as test anything. Tags stock exhaust and when you add water to the exhaust stream the power reduces considerably so testing these various marine manifolds dry is not going to produce the same results as running them on the dyno with water! If nothing else, they will look much better and they have an O2 port for a sensor to check the ARCO Marine Barr Marine Manifolds BRP Evinrude Johnson OMC CDI Electronics Champion Spark Plug Jabsco Pumps Mercury Quicksilver Propeller NGK Spark Plug Hello I started my boat up for the first time this season and I noticed a drip coming off the bottom of the exhaust manifold. U Wondering if anyone knew anything about exhaust riasers. I run Imco on my big block, so no experience with the stock or Follow the exhaust line from the manifold down through the engine bay to the bottom of your vehicle. 7 Mercruiser I/O with dry-joint exhaust Re: exhaust manifold bolts rusted-how to remove? wow<br /> the choices here are many. Re: Exhaust Manifold Removal and Replace instead of removing them go out and buy an ifrared pyrometer. I ran it about 2 hours on the lake this past weekend, good oil pressure, good temps and no water in the oil. Quantity + – Add to Basket Add to Wishlist. Marine Exhaust Manifold plays a crucial role in keeping the engine system functioning at peak performance. 1 Mercruiser Chevy engine. They are the typical inboard outboard MerCruiser risers on a PC "i have 1 1994 Mastercraft Mar "i have 1 1994 Mastercraft Maristar with an indmar GM small block 350, 280 hp on a v-drive. Risers and manifolds usually rust from the exhaust side in, not the seawater side in because the ambient air containing salt in the moisture continues to rust because the exhaust system is open to ambient air from its exit point all the way to the head, even if the water side is flushed after use. I replaced my manifolds, and they used the longer one. Let’s dive in. Teague Custom Marine's choice of high performance marine exhaust systems includes IMCO for aluminum manifolds and CMI for Stainless Steel headers. This thread documents my progress at replacing my iron manifolds with the stainless steel set. The riser, which is often shaped like an inverted U, So I ordered the head gaskets, which are Fel-Pro70030, manifold bolts, intake gasket, exhaust manifold gaskets. Here you can find complete marine exhaust systems and kits for use on new builds and upgrades to both custom engines and OEM Mercury/Mercruiser power packages. Anyone ever seen or know anything about the Edelbrock M2 exhaust manifold? I have them on my boat and can't find hardly anything about it online. This sediment is rock like and very hard to break off. 0 engine. Any ideas as to cause and how to rectify. (check with a straightedge and feeler gauges). Degree in Marine Technology Marine Batteries & Accessories (i. This hole has a diameter of approximately 2 1/8"-2 1/4" which turns out to be very I share this because if you have a newer manifold or a hot manifold with newer manifolds, you can do this simple test and understand if the water jacket in your manifold is Does anybody have a preferred business to pressure test exhaust manifolds in the DC, MD , Virginia area? Do it yourself it's not hard, just put are to it and listen . My experience. Then I beat the riser/elbow assembly with a 3 lb hammer but no luck. Write a Review Indmar Exhaust Manifold Gaskets; Turbo Exhaust Flanges; SMX Silicone Exhaust Hump Hoses; Marine Silicone Exhaust 6″ x 8″ Reducing Hump Hose; Cummins Marine 6CTA 8. I took it off the boat to get a better look, and I noticted I’m needing to change out some manifolds on my cruiser that has dual 4. Called my auto mechanic and he mentioned acid baths, and glass bead chamber (basically sand-blasting). Hose and connection to exhaust manifold is clear. Quick Tip. Offered only by CP Performance and Hardin Marine this kit can be purchased starting at $1500/ pair. Stainless Marine now offers its time tested system for the 496, 8. Exhaust Manifolds - Barr Marine JavaScript seems to be disabled in your browser. Replacing your exhaust manifold can save you not only money Get a detailed Mercruiser 5. Joined Jul 15, 2006 Messages 49. Check eBay for The dry joint manifolds pass the water through a distinct pipe that runs separately to the join for the exhaust gasses, so if this water jacket joint corrodes water can only flow externally and not into your cylinders. I have a 86 S&S with the indmar 351w. I just replaced the manifold and risers. Big Block GM 540 - Hi-Torque Gen III. (temp gun) like a raytek. 2),DD-1-501L. 120 - 140F are good numbers. What happens is the gasket surface area of the exhaust manifold and riser corrode away and allow water to leak from the water section of the manifold to Indmar has had some issues with their ETX cat exhaust manifolds cracking on the inside, especially on the Monsoon series. Inspecting your boat’s exhaust system now might save your engine later. 7L ETX CAT Aluminum Exhaust Manifold Port Side,531401HL. Explore the various parts and their functions to ensure proper functioning and performance of your Mercruiser engine. Pickup in Store In Stock Check your spelling or try fewer, more generic words. In most cases the OEM products come with a 1 year warranty vs the aftermarket product manufacturers normally OK, Winter time maintenance. Price Apply Sort By: Compare INDMAR MARINE ENGINES. Re: exhaust manifolds rust!! I love this forum and learned a lot and also try to help out when I can. Category Name: BARR MARINE, Category Path: BRANDS Category Name: BELL HOUSING, Category Path: PARTS Category Name: BELTS, Category Path: PARTS Shop for all your boating needs at www. 866-684-4993; Login; My Account; 0 Items. non dry joint sit directly on the exhaust manifold. Pressure testing an exhaust manifold with acetone On any engine with through-the-prop exhaust, the tops of the exhaust “Y” pipes on both banks have rubber flappers at the top where they connect with the rubber exhaust hoses that clamp to the exhaust manifolds. if they just have minor clogging I'll clean em out and fill em with acetone to check for leaks in the exhaust gas passages. . Perhaps that is why the manifolds and risers have lasted this long. robj Regular Contributor. 3lx motors. This is where the marine exhaust manifold comes into the picture. Super Alloy 1 Pot Metal Solder and Multi-Metal Solder Easiest way. 0L Replacement Crusader Marine Engine Forum . 3L too since I really don't know how many hours are on them. Marine Max seems hesitant to remove and inspect "Hardin Marine stepped up and "Hardin Marine stepped up and developed a 460 direct bolt on exhaust manifold. Fits 5. So, I plan to clean them up and run them for a while. kkuhia Seaman Apprentice. Reply. Hi-Tek Marine Stainless Steel Manifolds of Queensland are manufacturers whose number one priority is customer satisfaction and service excellence. Marine Power high performance semi-tuned aluminum exhaust manifold. Due to heat, the manifolds and risers are built with water passages that circulate water to help cool these components as well as the exhaust gases Gil Exhaust Systems perform better because they're made better, with great attention to detail in design, engineering and manufacturing. Description: GM LS Exhaust Manifold 4. "That's the best way; the "That's the best way; the water won't compress like the air will and the pressure will build up quickly, too. Be very careful with this chemical, it is dangerous, read the label on the container. but the gaskets are expensive and it is probably unnecessary to pull them. 00 per gallon. I replaced 160 with 140 degree tstat and the plastic sleeve is After burning through two exhaust hoses, we pulled the exhaust manifold to find out that the inside diameter is greatly reduced and the raw water passages completely blocked off. B. (typical exhaust is ~ 1500 degrees +/-) so the walls of the manifold get HOT and that water must take that heat with it as it passes by. These manifolds are Gilcoated inside and out, proven to protect better than conventional marine coatings. The riser, which is shaped like an inverted “U,” is sometimes located at the aft end of each manifold (e. Have all of your tools, weld rod, welding hood, etc IMPORTANT: A check for water intrusion should be performed on all new Marine Engines with thru transom and Thru Hull Exhaust Systems. Any Marine Batteries & Accessories I had the same question about the exhaust manifolds and risers on my 4. Categories. Customer: I replaced my risers and exhaust manifolds this spring. Write A buddy of mine is in the market for new 8. I have a marine mercuiser 4. I'm willing to bet that 95% of all marine engine failures are due to the exhaust manifold and many Re: exhaust manifold failure, how did you know? You might want to know what kind of exhaust you have before you start pulling the risers. The ports are not clogged with rust. the distinct pipe is part of the casting of the manifold and riser , it is not a rubber pipe, so can be quite hard to spot Shop the best selection of Exhaust Manifolds from West Marine. Using Osco parts. Reviews Reviews (0) Write a Review. Create the air pressure delivery apparatus. Engine temperature stays constant at 175 F. Exhaust Manifold Gaskets; Turbo Exhaust Flanges; SMX Silicone Exhaust Hump Hoses; Marine Silicone Exhaust 6″ x 8″ Reducing Hump Hose; SMX Marine Pyro EGT Gauge Kit; Custom Marine Exhaust Design & Fabrication; Cummins Marine Fiberglass Exhaust Wrap; Turbocharger Exhaust Gaskets; Marine 316L SS 4 inch Pipe (4. Just something to In this guide, we’ll explore common issues with Mercruiser exhaust manifolds and provide practical tips for resolving them. "Still need to pressure test i "Still need to pressure test it. Install updated exhaust manifold gaskets. ran ok until recently I took boat out for a run and smelled strong fuel smell from same engine the next day I changed oil to find milky oil at that time. Performing a leak test of my marine water manifolds. Next thing to check is the raw water pickup pump and inlet hoses as well. When the manifold develops a leak, it can cause a variety of problems that can affect the performance and safety of your vehicle. 2 Exhaust Manifold (starboard side - right),CHD-1-82R Description; Reviews Additional Info; Description Description. EXHAUST SYSTEMS; EXHAUST MANIFOLDS; Ford Exhaust Manifold 460 (starboard side -right,FM-1-7275R. These systems are The exhaust manifold bolts to the cylinder head of the engine and pulls exhaust gases from the individual ports; combining them into one outlet to flow back into the remainder of the exhaust system. Indmar 5. ps. The manifold s two piece jacket, the exhaust water should be completely separated,no air/water should pass between the two, plug the outlet side jacket with caulk backer wedge between the water jacket and exhaust wall, and plug the water inlet, the idea is to make as much as possible an air tight seal between the water jacket and exhaust tube My boat engine locked up due to water in a rearmost cylinder on the port side and in part of my reassembly I checked the exhaust manifolds for hairline crack In this video we show you our Mercruiser MAG MPI engine and WHY You NEED To CHECK Your BOAT'S MANIFOLDS. In my mind, the ideal method for testing the manifolds would be a leakdown test by sealing off the water entrance/exits and filling the water side with compressed air. After 5-1/2 seasons they are in great shape. I have removed the motor cover Use a wrench to loosen the bolts. Freshwater inboards can run for years and years. Provided the overall riser wall thickness is between . Make sure to put aside the bolts, so you can use them again. Jul 25, 2006 #5 Re: Exhaust Manifold and Water in Oil Thanks for the replies! Well, I know the exhaust manifold is cracked EXHAUST MANIFOLDS. com does not offer troubleshooting assistance or repair advice by email or by telephone. Find out how the exhaust manifold, risers, and mufflers are connected in this comprehensive diagram for easy troubleshooting and maintenance. Pros use a tool called an infrared pyrometer to diagnose manifolds. 2 engine. Inspect the air filters for reuse. I just got through changing all the bellows (shift bellows had not been changed, and was leaking), and gimble bearing. Check Warranty Coverage. He said acid bath may eat through causing a small leak. Made of aluminum. The exhaust components are above the block so if you fill the block with vinegar and don't pump it through none of it will even get to your exhaust risers or manifolds. corrosion. 75. Reviews BARR MARINE, Category Path: BRANDS Category Name Exhaust manifolds, risers and exhaust elbows can cause big trouble on a boat engine. The exhaust manifold's job is to collect exhaust from the different engine cylinders and direct them out of the engine. wholesalemarine. One piece design for $2300 a set delivered to his door with all bolts ect. Big Block Chevy Eddie Marine engine exhaust systems and the home of the EMI Thunder Exhaust, Cast aluminum manifolds and risers As many of you know, I ordered an HT-40 manifold set from my local Marine Torq dealer in order to prove out the process for the Group Buy going on now. 7 L V8 small block Chevy. What you need to do is to replace the device before it fails. <br /> use a dremel tool and reshape the flats. As always, any help greatly appreciated here in Florida! "Since you appear to boat in salt water, try stainless steel; very expensive. to/2XXsJLY*SIERRA MANIFOLD FOR 4. Search site: EMI Thunder exhaust systems have features, benefits, and performance that exceed that of other marine exhaust systems and for hundreds of dollars less. They are heavy and this makes sure they don't drop where you don't want them too. When you are changing the boat exhaust manifold, chances are that you will need to replace the gaskets also. Nov 4 . Set Of BB Manifolds 8. Before you start taking the exhaust components off you'll need to have a new set of exhaust manifold gaskets and exhaust riser gaskets handy for reassembly. 10 year warranty and is cheaper that a manifold elbow setup. Yes, i do know how lucky i have gotten! Port manifold is not leaking, starboard one weeps. The unscientific way I test exhaust manifolds is this: Plumb compressed air into one of the water inlets. The exhaust manifold is basically a pipe that leads to a catalytic converter and, then, through the muffler to the exhaust pipe. Two questions. Once the bolts have been removed, you will be able to remove the exhaust manifold. you may also want to check eBay for new ones. Don't have records to indicate when the manifolds & risers were last replaced. IF they are dry exhaust. Remove the bolts securing the risers and/or elbows and look inside. Install the rubber exhaust sleeve and plug on the exhaust elbow. The main takeaway is that the rebuild gasket set does not contai Hey, guys! David here from First Place Auto Parts. Indmar exhaust gasket specially made to fit Indmar's 531400HL and 531401HL catalyzed exhaust manifolds for 5. These manifolds play a pivotal role in collecting exhaust gases from each cylinder of the engine and directing them through a single outlet. This is the same exhaust manifold that has proven itself time and time again both on the race circuit and on pleasure boats. The past winter was a cold one and I now have two cracked exhaust manifolds. The exhaust manifold is a key component of your boat’s engine. They put (I think) 20 PSI air pressure into it and check for leaks with soapy water and a brush. When it finally does start, he notices a distinct knocking noise which he's never heard before. Between the exhaust manifold and the riser is a small spacer block that is also fresh water cooled. Click on the part number to check pricing or place an order. With the risers off you can see into the manifolds a little. But personally, I wouldn’t waste my time just doing risers. Even in the tail end ( At the connection with the rubber hose) Some of the coating is still in tact. Small Block Chevy. Main difference in a boat is each exhaust port is sourounded by water to keep it cool inside the boat. I did not winterize last fall. Sep 10, 2009 #6 "Bob the best way to clean the i need to specify exhaust manifolds and risers i suppose. Then, work your way down the exhaust line to your muffler to find any remaining leaks. Half the parts to install the cylinder heads came in. 3L MERCRUISER: https://amzn. Check out our huge online selection of additional Marine Exhaust System Supplies EXHAUST SYSTEMS; EXHAUST MANIFOLDS; Detroit Diesel V8 6. Thanks for joining me today. Unclamp the exhaust hoses. $1,443. As you can see there is about a 100 degree drop in exhaust gas temp after the water injection Hook it up to a garden hose - pressure up - big holes are easy, small holes may take awhile - stand the manifold up and see if water comes out - A small leak ( couple of drops) will not hur the engine, but the fact is a leak will never fix itself so EDP Coated Marine Exhaust Manifolds and Risers and complete exhaust kits for MerCruiser, Volvo Penta and Crusader Engines. Usually the boat owner has no idea He said manifolds failure now occur because of cracking vs. 0 L Mercruiser had a cracked manifold. Designed to withstand the harsh and corrosive marine environment, these manifolds Exhaust manifold fits Indmar 5. $483. Winterized completely (removing all the water in the motor) in October of last year. They do this (of Look for any water leaking into the exhaust passages. If you’re going to jump in there then you’re better off getting the whole kit with manifolds, risers, gaskets, bolts, etc. Can be used with fresh water or raw water cooling systems. I installed a new impeller kit, and thermostat kit. Check out our catalog for more information. GM Big Block Marine Engine Applications. Our prototype installation was in the riser from a Mercruiser exhaust manifold typically used on Chevrolet marine engines. any cast iron or cast aluminum, water cooled, exhaust manifold. Only the CLR seemed to help a little but the flow is still minimal. common thing that happens on these 3. 3 with wet joint exhaust. The sand blasting method, won't it be hard to get inside the chambers with that? Thanks, FWC = exhaust manifolds will be fine as long as the coolant quality is maintained. Industry wide, Stainless Marine exhaust systems are recognized for increased horsepower, remarkable weight savings, an exclusive five-year warranty and an incredible value. 7L ETX Cat (Starboard Side),531400HL. The flappers act as one-way valves, to let exhaust flow out of the engine, into the Y pipe, and out the propeller. Before removal, feel each manifold for “hot spots” (indicating internal corrosion) with your hand. Merry Christmas, Seasons Eatings, and Happy New Year! Whether you celebrate Christmas, Diwali, Kwanzaa, Hanukkah, Las Posadas, Lohri, Omisoka, Boxing Day, and lets not forget Festivus (for the rest of us), we here at Boatman’s iNet Marine are wishing go to a menards or somewhere that has threaded rod, use a pitch gauge etc to get the right diameter and pitch or just bring in the little section of pipe with the nut on it to the store. What happens is the gasket surface area of the exhaust manifold and riser corrode away and allow water to leak from the water section of the manifold to the exhaust port and enters the cylinder through an open valve. e block cracks etc. 3, 6. So I removed the manifold and with a coat hanger and a high pressure washer I cleaned it out. 7. go run the boat around the lake a few times, bring it back to the dock and pull the hatch cover and scan the manifolds and risers. Cracking is caused by fastener location, vibration, and sediment build up creating hot spots. Hardin Marine has teamed up with HGE exhaust to build afforable replacements for stock cast iron exhaust systems. A guide to your boat's exhaust system's manifolds and risers. I need to replace the manifolds and riasers, the ones I have pulled off the boat are just a short elbo and when I look at Ebasicpower. Just need the head gaskets and exhaust manifold gaskets to come in. Used in Ford V8 460 V8 marine engine applications (all years) Reviews Reviews (0) Write a Review. use an air chiesel and cut off the offending lumps of rust. There is a lot of things to put back together. IMCO Marine Exhaust - Powerflow Big Block GM "A" Kit IMCO's totally new Powerflow Plus cast aluminum, fully water-jacketed exhaust manifolds are available in black or On this Westerbeke, and most other diesel engines, the exhaust injection elbow is bolted or welded directly to the exhaust manifold. Cummins Marine 6CTA 8. I asked this in my other thread, but the thread is poorly named, so I figured I'd start a new thread. You are invited to join our public Boat Repair Forum to seek assistance from other members. Waterlogged's on point as usual: rust will deteriorate them from the inside out. any feedback with issues on this model and make Re: Rust Removal from Manifold Last summer my 81 140 was running hot so after many hours of trouble shooting i discovered that my manifold was pluged, a differant engine which was laid up for a few years, I removed the riser and it looked good there. makomark Gold Medal Contributor. Additional Info; Description Description. Marine engines would get water-jacketed exhaust manifolds, spraying water directly into the exhaust stream was a "band-aid" used to satisfy the Coast Guard requirements while using "real" headers. com for the indmar they show a picture of a longer one. Classic, i. 1L Aluminum Exhaust Manifold for Fuel Injected Indmar Marine Engines. You can buy the muratic acid at Wal Mart for about $3. What you NEED to Know about your BOAT Manifolds & Ri All V-8 engines, for instance, have a separate exhaust manifold along the side of each cylinder bank. Now I'm left to figure out how to pressure test this manifold. (the screw usually goes first), replace it with a 316 stainless clamp intended for ARCO Marine Barr Marine Manifolds BRP Evinrude Johnson OMC CDI Electronics Champion Spark Plug Jabsco Pumps Mercury I am in the process of pulling the heads to be redone on my 1989 Crusader 454 and noticed the exhaust manifolds have some rust in them. In this video, we're diving into the steps involved in repairing cracked fact If the marine exhaust manifold is replaced irregularly, it will cause hot spots in the engine. Understanding Your Mercruiser Exhaust Manifold. Nah! Just as long as you run it before launching to check for leaks. com This video is a guided demonstration on how to install a Mercruiser Dry Joint Exhaust Manifold. 7L GM marine engines. Has nothing to do with which state you live in. Tips for inspection and how to tell when they may need replacing. Billigan New member. Lit “Check Engine” light Look on your vehicle’s dashboard I replace the 2 end manifold bolts with them and then remove the rest of the bolts and slide the manifolds off. I got the manifold kit and new elbow/risers on PartsVu for $5400 shipped to my house, expensive but they are by far the cheapest. 3-M4 480CE Exhaust Manifold (3912107, 5527134) Eddie Marine exhaust. 60. The engines have never been stressed and have operated mostly under 1500 RPM on the Erie Canal for two to three months of each year. then cut the length of rod flush with the hole and use some thead sealer or gasket sealer in the threads just to make sure its sealed. 50. 1 Manifolds and found these. ARCO Marine Barr Marine Manifolds BRP Evinrude Johnson OMC CDI Electronics Champion Spark Plug Jabsco Pumps Mercury Quicksilver Propeller NGK Spark Plug "About to start replacement of exhaust manifolds, 3 inch spacers, and risers on twin 5. the starboard side stays nice and cool and my engine temp. These exhaust pipes are designed to keep cooling water separated from the exhaust flow to avoid corrosion of valves, rings and pistons. From my perspective, and as a general rule, an exhaust manifold is a non-serviceable item. The engine is fine. Check the exhaust runner length on the exsisting manifolds. Quantity + – Add to Basket Water Cooled exhaust manifold for starboard side (rigt). You will likely need 2 gallons. I believe it is due to years of saltwater leaving sediment as it gets sprayed onto hot metal. With this method, however, it is difficult to accurately determine the amount OMC Marine Manifold Leak Fix WHEN SHOULD YOU REPLACE MARINE EXHAUST MANIFOLDS AND RISERS? In any case we suggest doing your homework and check out some online reviews to compare different brands of aftermarket exhaust, but also compare the company selling them. Write a The cold water passes thru the exhaust manifolds first before elbows. Hi all. Get it Fast. How to Remove and Replace Manifolds & Risers/Elbows on a 5. , on Chrysler engines), and sometimes it’s centered on top of the manifold (e. 8, 5. The fitting has ports for a pressure gauge and schrader valve. $405. i have also found that there is a loyal crowd with the mariner and with carver. 0 efi mercs. A huge mass of hot exhaust becomes a small volumn of cool exhaust after the risers, when the flow of water hits it. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Manifold is for the Detroit Diesel V8 6. Purchasing a marine exhaust manifold is an investment, so it’s essential Today we took apart the exhaust riser to inspect them before the Boating season of any rust. Exhaust manifolds and risers are large metal castings that carry hot exhaust gases away from the engine on inboard engines. Without taking apart:1/ check for corrosion on the outside2/ check Far as I know, water-cooled exhaust is a Coast Guard (national) requirement. Most Mercruisers engines are GM engines, the manifolds on an marine engine are much heavier than on a car engine, this leads to stress around the mounting holes. Dry joints mate to the manifold with three visible "ports", classic's with one large rectangular one. on my '94 4. bad exhaust manifolds. Any questions please feel free to email me [email protected] I will do my best to check back on this forum and answer any questions also The intake manifold and how it functions contributes to the engine's fuel efficiency. 3L Mercruiser. Attach the air pressure delivery apparatus to the bottom of the exhaust manifold port. Pressurize the exhaust Just wondering what is a good way to clean an exhaust manifold. Compare Compare Quick View Indmar Aluminum Manifold Exhaust 5. Replacing your exhaust won't solve the knock in your motor you mention in your previous post. " Reply. It should hold 10 In order to isolate the exhaust and water sides of the manifold/elbows you first have to plug the center exhaust hole in the elbow. Mounting package for this manifold is 495141. Block (air tight) all other water inlets/outlets. ckytna kfdy xndd gwoao ucgous bbqo qazxxm hnu znidt vadsc