Exhaust Shutters

[dev6315]

I have my engine out and removed the Y-pipe to find both my shutters are badly corroded and the Port side is actually broken in half.
Do you guys have a part number for these? I was doing some research and there are a ton our there. I also saw somewhere that they sell plastic units to avoid these problems.
Ive got a 1990 7.4 carb with a bravo1.

My manifolds have a 3" extension block under the risers. Are the shutters that important, I am all for piece of mind, and will replace them, but in my application, are they really needed?

Thanks in advance :thumbsup:

 

[Quint4]

They will prevent water from swamping your engine and entering your cylinders under certain circumstances....replace them. The new style are easy to pop in place. Here is a pic of the new style.

 

[SevenTeas]

I am in a similar position. How do you get the old ones out they are riveted to top of the riser? Then do the new style ones just pop in?

 

[Quint4]

They are at the top of the Y-pipe....where your elbow connects with the rubber boot. You just work the old ones out...no rivets and push new style in place.

 

[speakrdude]

Just replaced my old ones with the new style. Old one on the port side was rattling a lot. Breeze to replace. Slide out pin, Hold on to old dlapper or you will drop it down the Y-Pipe. New ones come with instructions. Real easy.
Jim