Is it ok for an engine to sit for a long time being assembled slowly? I am rebuilding mine, just got the block and crank back from the machine shop today. I wont have it all assembled and running until probably next winter. Is it ok to install the crank, pistons and all that (properly lubed) for long term, or should i leave it apart for now until I have everything i need to assemble it all at once?

I would plan to keep the cylinders oiled, but what about the main/rod journals? If i use engine assembly lube, will it be ok to sit until the fall/winter?

 

TTT, anyones opinion?

 

What will you use as assembly lube?
If you use Compcams, Crane, Red Line, or Lubri-plate assembly lube, see what is written on the bottle as far as air exposure & opened use life is.
Thing is, if you spin the crank to oil the cylinders, how will it effect the lubed bearings?

Maybe get as far as short block with the oil pan fastened on,
then for storage get an extra large plastic bag to wrap the motor, or use the name brand cling wrap. Wrap as tight as you can to keep out air / moisture.
If you wrap it in a plastic bag, get a moisture remover container to put in the bottom of the bag. The stuff was talked about awhile back when ppl were prepping to store cars for winter. I forget the thread & what it's called.

You would need to keep individual parts clean & dry too, maybe occasionally wiping with oil or WD40 or PB Blaster to ward off surface rust.

 

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BINGO. You might be perfectly fine letting it sit for a couple years but why risk it.