I've got an engine that's frozen (stuck). My theory is that they ran it
without oil. The bearings don't look bad but the small ends of the rods
look like they got hot. I need to get the pistons knocked out.
With the engine in the car I pulled the head off and soaked the tops of
the pistons in PB Blaster, but it didn't seem to help. but then that
is trying to rotate all 4 pistons at one time. I pulled the engine out,
pulled off the pan, and tried to knock the pistons out one at a time. I
couldn't get them to move.
I've finally decided that the PB Blaster might go beside the pistons but
maybe it couldn't get by the rings. So I can try soaking the pistons
from the bottom. Someone told me to soak the cylinders in diesel. I'm
wondering if there is anything that would be better, such as ATF (I've
got some extra ATF). I can set the engine upside down and fill the
bottom half of the cylinder and let it set for awhile.
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