Is there anything one can do to rotate the crank on a Cummins? I've got a PP12V sitting in the shop and it dawned on me when I store a gasser, I always fog the cylinders and rotate by hand but was wondering how one does the same with a Cummins.

And is it necessary?

 

I also have my 93 motor sitting on a skid but all I did was close it up Really good and when I put it into the truck I will spin it a little before firing it you should be ok just closing it up really well

 

we just closed up dads 92 cummins when we was doing his crew cab build and it sat for 2 years. It did want to run away the first time we fired it up we had to snap the throttle to get it to come out of it.

 

I read somewhere these engines are made to withstand long periods of downtime because of the fact that they were originally built to use in construction equipment, which can be suseptable to sitting unused.

But fogging and an occasional hand rotation can't hurt.

 

I work at a heavy epuipment shop. Rebuild engines and everything else. When ever we store engines, we make sure to pickle them good, antifreeze and oil. And tape up all the holes. But these engines atre stored in an open pole shed or outside in the weather. every year someone goes around and hooks a battery cart to them and spins the engine to get eveything coated and lubed. They will draw condensation if not in a temperature controlled shop. That being said, the few that did set for several years without any maintenance, the only problem that has occured was bad fuel and varnih buildup in the fuel system. Hope this helps you.