Bravo 3 Transom Assembly
What's the general consensus on the transom assembly seal when it comes to needing sealant? I've seen comments from dry or needing a coat of grease to needing 4200. I know 4200 wouldn't hurt, but is it really necessary? The transom is in excellent condition and flat. The assembly is new Mercruiser.
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Buddy had one done a couple years ago. Factory put original in dry and it was still good with no signs of leaking after 15 years. New assembly/gasket was put back on same way. Like your boat his transom was nice and flat.
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Originally Posted by Knot 4 Me
(Post 4758574)
Buddy had one done a couple years ago. Factory put original in dry and it was still good with no signs of leaking after 15 years. New assembly/gasket was put back on same way. Like your boat his transom was nice and flat.
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Put it on dry
Grease is not good and can cause the seal to break down depending on what the gasket is made of. |
Originally Posted by AllDodge
(Post 4758582)
Put it on dry
Grease is not good and can cause the seal to break down depending on what the gasket is made of. |
I installed dry in 2018 and no leaks since.
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Originally Posted by HawkX66
(Post 4758588)
I already applied a little grease and installed the assembly. The gasket is foam like a cars trunk gasket.
Agree it appears to be like a truck gasket, but I also installed new and dry some years back |
Never put a thing on one. Grease/gas/oil breaks down rubber.
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Agreed grease is a bad choice. What is the benefit?
I did mine a few years ago, and added a very thin film of silicone to the edges of the assembly (not on the seal itself). |
What about marine lithium grease? It's not the same as regular petroleum wheel bearing grease. Just trying to figure out if it's really necessary to pull it back off. Thanks.
Edit: I think I answered my own question. It's still petroleum based so I guess I'm pulling it off. Thanks for all the responses guys. Last thing... fwiw, the new seals aren't really rubber, but a foam like seal it seems like. |
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