I"m about to rip out a 6.9L and put it on a pallet to set in the back of the garage or the shed or something... I'm just trying to get some opinions on what I could do to keep the internals in good shape... particularly the coolant passages, as this diesel to my knowledge has never been treated with sca/dca additive... Should I run some coolant flush through and then maybe put the right antifreeze in and run it for a little while to coat the insides before I drain it, or should I just say F it and drain it and put it right on a pallet? Any other ideas? thanks guys

 

Spray the cylinders with something that will oil the cylinders good and let it be. I have used outboard boat motor cyl "fog".

 

...and turn over the engine by hand a few times after fogging it.

 

Make sure you strap it on good, dont want that big hoss falling over and damaging it, something else, or someone's toes...

 

nobody thinks I should do anything to the coolant system? would it just be a waste of money?

 

SCAs provide extra protection when the engine is running, but for storage, I would just drain it and wrap it up real good.

 

How long is it going to be stored?

 

maybe like 10-20 years

I'm not sure if David85 has me convinced, I think I'd rather know for sure that when it comes time to use this motor again the coolant passages aren't all rotted out inside

 

For tha long term. I would seal all areas where air/moisture could get into engine. Best thing would be a shrink wrap for the whole engine.

 

great thinking!

 

a good heavy weight oil on all the surfaces and cover with a breathable cover. Dont shrinkwrap it. If you do, when the block sweats from the air warming up, it will condensate under the wrap and then there will be nothing but a haven for rust.

 

EVEN GREATER THINKING!!! I'm glad you read this thread