05-06-2012, 09:33 AM
either ;
1. grinding away the cylinder head combustion chamber, checking with liquid as described.
2. fitting a thicker head gasket (some manufacturers used to fit 2 x gaskets to get u.k spec cars to run on unleaded in the late 80,s-----reduced comp.ratio)
3. machine crown of pistons down, reducing thickness of the crown though !!!!
1. grinding away the cylinder head combustion chamber, checking with liquid as described.
2. fitting a thicker head gasket (some manufacturers used to fit 2 x gaskets to get u.k spec cars to run on unleaded in the late 80,s-----reduced comp.ratio)
3. machine crown of pistons down, reducing thickness of the crown though !!!!