Morris Minor Owners Club

What's the best product to put down spark plug holes to try and release stuck piston rings?cheers Stevie

Diesel has never failed me, even on a 6 cylinder Dodge engine sat outside with the bores full of water for approx. 20 years.
Some swear by Coca Cola too.

I would try the diesel. But why has it seized?? Long time standing - or overheated and ground to a halt....?

I used diesel on mine left it for a week and it moved freely, that was seized from standing for five years