270 exhaust flap????

N

no704

Petty Officer 2nd Class
Joined
Apr 22, 2009
Messages
199
I'm sure that this is common but why should I care if my ex flap broke off?? and how do I find a new one??
 
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diesel1960

Petty Officer 1st Class
Joined
Jul 3, 2012
Messages
205
Re: 270 exhaust flap????

Volvo never had replaced flaps for AQ270,recently I make one using stainless steel angle bar and braided rubber( 1/4 thick).
Why you need one-when you going from plane to slower speed your boat create massive water surge which can cause water to enter engine through exhaust ports,also passing by boat may do same thing ,you looking for serious engine damage.....
 
Don S

Don S

Honorary Moderator Emeritus
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Messages
62,321
Re: 270 exhaust flap????

diesel1960 said:
Why you need one-when you going from plane to slower speed your boat create massive water surge which can cause water to enter engine through exhaust ports,also passing by boat may do same thing ,you looking for serious engine damage.....
Click to expand...

You aren't going to get water up the exhaust as long as the engine is running, even with out that flapper :facepalm:
The engine exhaust and all the bends and turns in the system sees to that. There is a chance you can get water up the exhaust if the engine isn't running and the waves hit straight on the drive.
 
T

trophy boat

Seaman Apprentice
Joined
Apr 23, 2011
Messages
41
Re: 270 exhaust flap????

I took some truck inner tube. It was too thin, so I glued several layers together and made a new flap. Worked for a year so far. No troubles.
 
N

no704

Petty Officer 2nd Class
Joined
Apr 22, 2009
Messages
199
Re: 270 exhaust flap????

That's what I thought, just on inland (AZ) lakes shouldn't be much trouble. Thanks everyone for the input. May fab one during off season (jan-april) . Again thanks LOVE iboats!
 
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