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