Silverton 34C - Marine Chevy 5.7 Vortec Exhaust Manifold Replacement BOAT ALPHA Gen 2 OUTDRIVE Exhaust Boot FIX ⚓️
They can stick open and flood your engine. If I were repowering I would certainly install a high enough riser loop, minimum 12”. But for an existing The working principle of the four commonly used check valves #valve What is wrong with the exhaust? Mercruiser Alpha One Gen 2 / 3.0
Prevent hydrolocking your boat engine with these boat launch tips and boat ramp tips. If you have a sterndrive engine (an inboard Hardin Marine has designed this easy to install effective slip on version of the popular "Silent-Seal"exhaust flap. No cutting or welding, this unit is designed Parts showed up just before the holiday weekend, so let's try and make this boat stop leaking! The old rubber coupler (lower 3")
How to replace an exhaust elbow on a Mercruiser inboard | My Boat DIY Exhaust flapper | Boat Repair Forum
mercruiser exhaust riser gaskets - which ones to use on which exhaust You'll most likely be fine. Don't let most of these people commenting scare you. The planets would have to align perfectly for any water to make mercruiser exhaust bellows zip tie install trick
Steve Bull shows us how to replace a corroded exhaust elbow on a Mercruiser, and throws in a few tips to help reduce engine Part 11A - Mercruiser 4.3 V6 Rebuild - Exhaust System Prep
Those little shutter valves inside of your exhaust white pipe serve a purpose, especially on a boat that has the engine sitting quite exhaust manifolds STUCK on mercruiser engine.. how I removed it #marinerepair #boatrepair #manifolds Reinstalled Exhaust Riser, Boot & Flapper on 1987 Bayliner Cobra 2250 OMC 5.7 V8
mercruiser 3.0L exhaust flapper replacement. Captain We built a 8" flapper and hinge of cast bronze. The mounting block was thru bolted onto a 8" Buck Algonquin transom fitting. You could In this video, I demonstrate how Corsa Exhaust Diverters work on my 1995 5.7L Alpha One Gen 2 boat. These exhaust systems
poor attemt at installing exhaust rises nearly causes boat fire. I got the broken exhaust flappers out of the bottom of the outdrive thinking that was the problem. But it's still doing this. Shop for all your boating needs at This video is a guided demonstration on how to install a Mercruiser
MerCruiser Exhaust Buyers Guide 1986-2009 - Powerboatsupply.com 1. How to replace Mercruiser outdrive Bellows - (PART1) 2. How to remove alpha outdrive from
Mercruiser 4.3L Exhaust Flapper Water Valve Replacement Testing the CORSA Performance Marine Exhaust Diverter Valves, Solenoids and Harness off boat. Problem was fixed by taking Mercruiser 5.7 exhaust riser inspection
This is a quick overview on how to replace the exhaust shutters on a Mercruiser inboard. Parts (Amazon Affiliates): Shutter Mercruiser Water Flapper Exhaust Shutter Replacement
Exhaust Flapper - HELP - Maintenance, Tech Info & Troubleshooting The exhaust shutters keep water from entering the cylinder heads, it tends to bend connecting rods and can break your start nose cone. FnF 161 - Boat 016 - Volvo Penta 270 Exhaust Flapper Replacement - 1982 Citation Sprint
Mercruiser overheat incorrectly installed exhaust system DANGER FIRE! Corsa Marine exhaust diverter solonoid testing
94' Rinker Mercruiser 3.0LX - Exhaust Leak Fix Exhaust flapper needs to be replaced one of the screw holes is completely torn out They snap into place on the boat side and just float Wondering why your OMC/Volvo sounds like garbage? Your exhaust seal/flapper is probably stuck closed. It's not the end of the
Replacing Mercruser updated exhaust flappers How to Install a Mercruiser Dry Joint Exhaust Manifold The only thing you will notice is about 1 extra decibel of sound from the new style boot at idle.
Open Exhaust or closed Exhaust for my Mercruiser boat! Mercruiser exhaust bellows 7 minute install trick Links Below: Petcock Failure of the MIE 350 MAG MPI Ski as I get ready to launch my boat! Mercruiser / Mercury Inboard Engine
Don't overheat the 6.2 Mercruiser 🔥exhaust shutter valve failure. ✅ This particular engine is more than likely just pooling water inside exhaust and running back into the cylinder. 60 second boat survey (Ep78): Bad engine manifolds and risers
Running boat without exhaust flapper? Boat is taking on water - Our failed leaking bellows Wet exhaust tail pipe flappers…pros and cons? | Trawler Forum
8" Exhaust Flap | Downeast Boat Forum Wasn't a one and done
Subscribe the channel i will do a full video on the boat shortly. Testing 2.5, 3.0 Mercruiser marine exhaust manifold for cracks. OMC, Volvo too. Replace Mercruiser exhaust flaps the easy way,no riser removal #trending #viral
Marine engineering team @AizuddinAbdullah1187. How to install bellows on a Mercruiser I/O. Exhaust flappers yes or no??? - The Hull Truth - Boating and Fishing
Findings and nuggets of knowledge from a typical boat marine survey. Today's episode: Warning signs for engine exhaust I own a 78 Bertram 35 with 3116 Cats. The boat has and always has had exhaust flappers on it. (I hate them) I have seen others without them with Why do Boats Exhaust into the water? #boat #exhaust #wetexhaust #learn
OMC COBRA exhaust flapper - stuck in sterndrive. Now running engine with no flappers. Corsa Marine Exhaust Diverters -- How Do They Work and What Do They Sound Like? OMC cobra thru-hull exhaust
Mercruiser Alpha One Gen Two exhaust flappers 8' Disney boat with a 25hp 2 stroke and a 70lb driver takes off a lot like a jetski lol
Replacement Flappers - Hardin Marine 4in exhaust tips install Open or closed exhaust diverters for my boat , loud or quiet is always cool, some lakes you have to have underwater exhaust!
Today we took apart the exhaust riser to inspect them before the Boating season of any rust. They are the typical inboard outboard August 24, 2025 Exhaust Tip Flappers
Marine Exhaust Flapper - Amazon.com 454 Mercruiser water reversion as seen thru clear 4" tubes running outside boat
In this video I am prepping the exhaust system for installation. The main takeaway is that there could be melted exhaust flappers in Exhaust flap not working good. Give your answer for below questions 1. The Loudest Muffler? 2. The Quietest Muffler? 3. The Best Performance Muffler?
I discover my exhaust flappers are damaged. Mercruiser manifold test Stupid flapper melted and made it all the way to the sterndrive. Tried looking for it with a camera scope but was not visible in the
Which muffler do you prefer? Can I run the boat without an exhaust flapper? Boat Flappers Explained / What do & Why do I need Flappers
Hey Everyone, Today I go over a boat exhaust manifold and show how they work and how the water cools them. I cover all the Hydrolock Boat Engine - How it can happen!
Marine Exhaust Manifolds. How Do They Work? Volvo Penta issued a Technical Service Bulletin that recommends removing the exhaust flappers. They did research that found
Install Exhaust Bellows on a MerCruiser Alpha One Gen 2 - Keep it from falling off 18-4457 2 Pcs Boat Exhaust Guard Covers with Stainless Steel Clamps Fit 4" OD Pipes Replace 50-28361 Mercruiser 12644A1 12644Q01.
Made this video since I could not find any videos about replacing the flapper valve on the 4.3L Mercruiser engine. Sorry the video How to make flappers stay put when installing them. I rigged this to check and see if my exhaust manifold was bad. It bubbled like crazy. The other manifold was tested and no bubbles
Part 11B - Mercruiser 4.3 V6 Rebuild - Volvo Penta Exhaust Flapper TSB Repair Hello all, Today we are going to be replacing the exhaust manifolds on my 2010 Marine Power 5.7 Small Block Chevy Vortec
454 Mercruiser water reversion as seen thru clear 4" tubes running outside boat Shows why exhaust shutters are soo0000o mercruiser cooked engine by messing up exhaust gaskets open or closed cooling? 7.4 Mercruiser Exhaust Water Reversion & Pooling
Mercruiser? - This WILL Sink Your Boat (Part 1) In this video I explain what flappers do. Volvo said you should not put them back in if they fall out. Mercruiser says you should. FnF161200205 - Boat 016 - Volvo Penta 270 Exhaust Flapper Replacement - 1982 Citation Sprint.
mercury marine purpose and design of exhaust flappers In this video I am doing an inspection of the bellows on a boat with a Mercruiser Alpha One Gen 2 outdrive and 3.0 4 cylinder Does your exhaust bellows keep slipping off on your MerCruiser Alpha One Gen II from the outdrive? I attempted the install 15
Mercruiser Mercury Marine Exhaust Manifold Cooling System Petcock #shorts MIE 350 MAG MPI Ski The flappers, aka Exhaust Water Shutters, are located in the exhaust y-pipe. The flappers help prevent water from running back into the engine.
OMC Cobra Volvo Penta SX Exhaust Seal Flapper Damaged/Stuck Everything you need to know to buy new exhaust parts for your MerCruiser engine! 0:00 MerCruiser exhaust buyers guide 0:22
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