13-03-2023, 04:26 PM
I should have thought if the block is compromised you would be able to see something - a dark spot perhaps, or a crack - in the bore. I don't think leaving it standing is the best test, as under working conditions there's a lot more stress, pressure and vacuum at play.
I should have though a leaky head gasket (or warped head) is more likely.
Can you see any witness marks on the head? (e.g. often you see a sooty patch between no.2 & 3 cylinders where gases have been blowing by)
Have you tried the head for flatness on a surface plate or with a steel rule? (n.b. often they are slightly domed convex in the middle).
Sorry, more basic questions - what sort of head? and was it tightened down with a torque wrench, following the correct tightening sequence? Was the gasket dry or greased?
I should have though a leaky head gasket (or warped head) is more likely.
Can you see any witness marks on the head? (e.g. often you see a sooty patch between no.2 & 3 cylinders where gases have been blowing by)
Have you tried the head for flatness on a surface plate or with a steel rule? (n.b. often they are slightly domed convex in the middle).
Sorry, more basic questions - what sort of head? and was it tightened down with a torque wrench, following the correct tightening sequence? Was the gasket dry or greased?