2.0TS Head skim problem
Posted: Mon May 22, 2023 12:04 pm
I have taken the head off my 147's 2.0 TS engine to replace the rather hardened valve stem oil seals, which will hopefully reduce the chronic oil consumption. I have had it skimmed as there was some minor corrosion, due I presume to the use of a multi layer steal head gasket. Having had the head skimmed, on close inspection you can see the machining marks and I can feel them with my finger nail.
Having done some research on u-tube. The 'experts' say the machining marks are fine for fiber or composite gaskets but the surfaces must be very smooth for a multi layer steel gasket.
So what should I do? Get it machined again, which I am nervous about as its an interference engine. Or I could sand it with fine wet and dry on a sanding block and hope for the best. If I sand it then it will be impossible to do it evenly but would I be right in thinking that any variation, if I am very careful, would be within tolerance?
Having done some research on u-tube. The 'experts' say the machining marks are fine for fiber or composite gaskets but the surfaces must be very smooth for a multi layer steel gasket.
So what should I do? Get it machined again, which I am nervous about as its an interference engine. Or I could sand it with fine wet and dry on a sanding block and hope for the best. If I sand it then it will be impossible to do it evenly but would I be right in thinking that any variation, if I am very careful, would be within tolerance?