Everything went very well reassembling my B1759 engine until I got to the head. The manual stated to check top head clearance to see if a head gasket shim is needed. Looks like to me once the head is on and torqued, if the piston to head clearance is under the spec. (.0237 to .0315) you need to remove the head and add the .008 shim. My thinking is if the head gasket has been torqued it should be replaced. Using a dial indicator the pistons rise .011 above the block deck. The new factory gasket presently measures about .043.
Does anyone know how much crush to expect from the factory gasket?
Does anyone know how much crush to expect from the factory gasket?