5 replies to this topic

[12oss]

hi there does anybody know how to free stuck piston rings without taking the engine to bits.

[tog77]

yes..take the head off,turn the engine till all the pistons are half way..fill the bores with redex then let it stand for a week..usually works..
tog 77...

[Sprocket]

In what way are they stuck?

[12oss]

the engine was taken out about 7months ago put out side but coverd over so think they got stuck do to this

[wile e coyote]

Hesitate to suggest this - but as engine is out of the car - if more sedate methods fail - put 50 ml petrol through the plug holes - assuming pistons not at top of bores & light it - when just burnt turn crank back & forth gently - before it cools pop some fresh engine oil / diesel mix down the bores and leave overnight - bit dramatic but usually works.. be very very careful setting fire to things though!!!!

[Guess-Works.com]

So you actually mean the engine is seized... and the only way that happens is rust...

This means the ring is useless and the bore is damaged.