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Originally Posted by 427jlc  if all the above fails contact me as my uncle had the similar problem with his Rover V8 and it was a bit more sinister! Aluminium block?? possibly the ali was breaking down and the air was being created by the pistons going up and down, very rare but you can get cross bore leaking. I'll mail hime for more info if you need it - but not wanting to panick you , like I said contact me if all the above fails. for the record his V8 was in his range rover. Took him 3 months to sort in the end under warranty the garage replaced his block. |
That's not that uncommon but it tends to be the larger RV8 lumps that suffered from the problem. Basically the ali between the liners crack and the result is that the liner drops down the block a few thou. The coolant can then leak into the cylinder and can lock the engine solid. When that engine is running the cylinder pressure can also pressurize the coolant system and cause a load of issues.
The normal cure a hot hat liners. (or another block!)
Pete