14-11-2019, 05:55 PM
Hi Bob
If you play the sleuth then as everything was OK before and the only thing you’ve changed is the head then it must be something to do with the head or gasket.
However if the old head was warped or bowed but fitted the block OK possibly the block is not completely flat. Have you checked this with a straight edge? Whilst you are at it I would meticulously clean around the head studs in case something is holding up the head here.
Last possibility is a porous head but if it’s a standard A7 cast head that’s not very likely.
Cheers
Howard
If you play the sleuth then as everything was OK before and the only thing you’ve changed is the head then it must be something to do with the head or gasket.
However if the old head was warped or bowed but fitted the block OK possibly the block is not completely flat. Have you checked this with a straight edge? Whilst you are at it I would meticulously clean around the head studs in case something is holding up the head here.
Last possibility is a porous head but if it’s a standard A7 cast head that’s not very likely.
Cheers
Howard