Nory P wrote:
>
> Didn't Trevor, or somebody, not too long ago, free up a seized engine
> with diesel fuel? Maybe that might work? Trev?
In my case it was frozen rings, the engine turned over
easily but had no compression. Diesel worked extremely
well, and without any disassembly.
Penetrating oil and time works really well. The local
shop/junkyard always has one or two engines sitting around
headless with the bores filled with penetrating oil.
If the bores leak the oil out, but still are frozen, turn the block
upside down on a flat rubber mat (in a big bucket or rubbermaid
container), and put the penetrating
oil in from the bottom. That way the stuck rings can
be soaking in penetrating oil without needing to immerse
the whole block. Let it sit a few weeks.
As well, remove the crank so that you can work on
the pistons individially. You can use a piece of wood (a
fire log) as close as possible to the bore size, put
it on the piston top, and tap on it firmly but not
wildly with a hammer.
You can unsieze an engine and then put it back into
service without major work if that is your goal. A
very thin rust layer will hold on for grim death
then be surprisingly easy to hone out.
--
Trevor Boicey, P. Eng.
Ottawa, Canada, tboicey@brit.ca
ICQ #17432933 http://www.brit.ca/~tboicey/
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