Old rusty engine with stuck pistons. Suggestions please!

[Austin@STM]

lube it up, it always slides easier...

[akotten]

lube it up, it always slides easier...

QFT!

[TUFFTR]

I've done that before with a Morris 1000 motor (950CC)

Soak the pistons/bore with oil . let it soak. Remove the crank, use a piece of wood on the rods, hit the wood with a hammer, They'll come out.
The block will be junk though as will the pistons & rods.Well the block will be OK for a rebore but stock bore is always better.

Steve

Why would the rods be junk? (Serious question, I like to learn )

[stealthee]

I agree with soaking it in PB Blaster and after sitting a day or two try to turn the crank with a breaker bar.

Just a curiousity question, but the heads are off right?

[akotten]

I haven't had time to try anything lately, but I'm thinking PB blaster is probably a good idea. As it sits, the heads are off, the crank, girdle and main seal are off. Just the rods and pistons remain.

[CoreyB]

Seriously try the acetone mixed with ATF. I read a review stating its the best rust breaker around. It was posted on 3si so I know some of you guys read it as well.

[Ondonti]

I (post PB blaster, but I would think Seafoam deep creep would do better) did the crank removal technique plus wood and hammer on a 4 year rust block that sat outside. Problem was the rings were stuck in the grooves, and not just the top groove (if you assumed the piston got damaged. I should have soaked them longer in solvent.