Any way to check exhaust flappers / water shutters Alpha 1

[andyr]

Is their any easy way to check exhaust flappers / water shutters on a 5.7L Alpha 1 without having to pull the exhaust elbows and tubes? Last time I replaced them, the tubes were a bear to get off x 4. How long do they last? I haven't any ticking noise but on the other hand, there wouldn't be any noise if they washed away.

 

[Quint4]

You could buy or rent one of these...might be long enough to look up there from the stern. There are a few companies making these fairly cheap now.

 

[NorCal Boater]

The best way I've found is to listen. They are metal with a rubber-like coating. If the coating is gone you can hear them tapping. If you hear them it's time to replace.

This is not a hard job if you have decent access.

 

[Quint4]

Replaced mine last year. Here is a shot of the new style replacements.

 

[Daddubo]

Mine were shot also I found them when I pulled the out drive off. Half from each side were laying in the exhaust outlet blocking about 1/2 exhaust in front of the bellows and when I pulled the elbows off the one on the Port side had flipped over and was blocking 1/2 the exhaust on that side. I am glad I decided to change the water pump or I would have never even thought about it and could have ended with an engine full of water on thee maiden launch.