Seals Questions

[johnod]

No idea who that is.

[KEITH KRAUSE]

No idea who that is.

Ignorance is bliss in this case.

[sharpy]

I wouldn't split the cases. Just do the seals in the top end. Use OEM Suzuki gaskets and seals including the following...

Why wouldnt you spit the cases. Its been sitting for 28 yrs. More than likely old oil with its acid content been chewing away at all the bearing surfaces, every seal be useless. 50/50 chance main bearings/conrod bearings be pitted but if not at least you can expect all the engine. Not just only half of it and pray the bottom end is ok.

[Nessism]

Why wouldnt you spit the cases. Its been sitting for 28 yrs. More than likely old oil with its acid content been chewing away at all the bearing surfaces, every seal be useless. 50/50 chance main bearings/conrod bearings be pitted but if not at least you can expect all the engine. Not just only half of it and pray the bottom end is ok.

This is not my experience; corroded bearings are very rare unless the engine has sat outside exposed to the elements. Mind you I don't think splitting the cases is a bad idea, it's just that the OP said he didn't want to do it and I can't fault him.

[sharpy]

Its the acid content in the old oil that does the damage. That's half the reason you spin the engine over every month or so if its in storage. Even if it got new oil. Sitting in one spot for 28 years is more than enough time for that old oil to etch pits in bearing surfaces unfortunately. Fingers crossed

[Nessism]

Oils have acid buffers in them. The oil analysis guys talk about the TBN (total base number) as a reference of how much buffer is remaining. I'm not sure if this buffer diminishes with time but do know oils are designed to neutralize acids up to a point.