Transom plate / Gamble housing through bolts (Alpha1 Gen1)

[Brando33]

So I am replacing the rubber gaskets on the 2 lower through bolts. The bolt head has a square to index the bolt and small gasket around it. They seems to be lacking in substance. Wondering if others put sealant on them. I was thinking a very thin coating should do it On both side of the gasket. Nothing I’ve seen calls for it.

 

[todhunter]

I just did mine and didn't use any sealant. Only had it in the water about 2 hours so far, but no leaks.

 

[Brando33]

I just did mine and didn't use any sealant. Only had it in the water about 2 hours so far, but no leaks.

Wow, talk about timing. I kinda don’t want to add sealant and it’s hard to see the entire the gaskets once installed because they are slightly recessed into the housing. So if I don’t add sealant, I think it might be a good idea to re-torque them in 2 or 3 years.

 

[nola mike]

Iirc I filled the hole with 4200 before installing that bolt.

 

[Rick Stephens]

Me too, 4200 around the head of the bolt when I installed the transom.

 

[tank1949]

So I am replacing the rubber gaskets on the 2 lower through bolts. The bolt head has a square to index the bolt and small gasket around it. They seems to be lacking in substance. Wondering if others put sealant on them. I was thinking a very thin coating should do it On both side of the gasket. Nothing I’ve seen calls for it.
View attachment 354723

In my opinion, that was another MC design flaw. I had the same crap on an older 86. I replaced motors and these boat sinkers with SS and lots of 5200

 

[Brando33]

In my opinion, that was another MC design flaw. I had the same crap on an older 86. I replaced motors and these boat sinkers with SS and lots of 5200

I like the idea. I assume you eliminated the anodes then?

 

[Rick Stephens]

No way I would use 5200 on a bolt that there is ever any chance of having to remove.

 

[tank1949]

I like the idea. I assume you eliminated the anodes then?

Indeed.