Storing Rebuilt Engine

[Fendamonky]

I should think (hope) that a rebuilt engine could last a long time sitting on a stand. So long as you've got it indoors in a climate controlled location with low(er) humidity one would hope that everything would last.. I figure the only moisture finding purchase in the engine SHOULD be in the coolant/oil passages, as all the other surfaces should have a coating of Vaseline or motor/2-stroke oil.

My engine has been assembled and sitting on a stand in my garage since last winter..

[Pete_89T2]

Good question, as I'll be facing the same problem. Building up a new short block for my FC this winter, and most likely won't drop it into my FC until after DGRR, so I'll be able to take my time breaking it in properly.

Anyway, I think if you keep it in a low moisture area and seal off all the openings (exhaust, intake, coolant/oil lines, etc.) you should be OK for the period of time you're looking at. Only concern I'd have is vaseline or assembly lubes might cause exposed rubber seals to swell over time.

[Fendamonky]

Originally Posted by Pete_89T2

Only concern I'd have is vaseline or assembly lubes might cause exposed rubber seals to swell over time.

They most likely will, but that wouldn't negatively effect the effectiveness of the soft seals, would it?

I've always figured the water seals are single use items anyway, so of they swell within the grooves it shouldn't matter too much, as once they're removed they go to the trash anyway.