Re: Johnson A-25 Cylinder

[PM T2]

The freeze plug in the end of the cylinder has nothing to do with the stuck piston or cylinder bore. If you put any type of fluid in the cylinder and it leaks into the water jacket, you have bigger problems than just a stuck piston.

I’d advise you to go ahead and try to get the piston unglued, and save the effort of installing the once cent freeze plug until such time as you know the cylinder is actually salvageable. Having that hole open also lets you see if the unseizing elixir is indeed leaking into the water jacket from the combustion chamber. Long and short of it is, if you have oil leaking out of the combustion chamber and into the water jacket, you have a split in the cylinder wall, and therefore, a cylinder that is likely beyond redemption.

Just my $0.02

Best, PM T2

He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...