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?
2.0TS Head skim problem
2.0TS Head skim problem
1976 1.5Ti
1977 1.2Ti
1989 1.7 Sprint Veloce
1989 75TS
2003 147 2.0TS Lusso
2004 MX5 1.8S
2002 1.6 Focus LX
1977 1.2Ti
1989 1.7 Sprint Veloce
1989 75TS
2003 147 2.0TS Lusso
2004 MX5 1.8S
2002 1.6 Focus LX
Re: 2.0TS Head skim problem
Can't answer your skim/gasket question, but someone on here should be able to.
I thought the chronic oil consumption was down to poor piston rings.........see GTV ts in this same section.
I thought the chronic oil consumption was down to poor piston rings.........see GTV ts in this same section.
Re: 2.0TS Head skim problem
Yes I did read that post with interest and now appreciate the piston rings are the primary cause of high oil consumption. I should have said I am hoping new oil seals will reduce the oil consumption.
Composite gaskets were fitted to the earlier 16v engines, so I am wondering if fitting one to my later engine is a good idea as it will compensate for the lack of a super smooth finish. But as a composite gasket is thicker, are the heads the same? Now mine has been skimmed I doubt if fitting a slightly thicker gasket will matter. But, as you say Dave, there are people on this forum who may well know the answer.
Composite gaskets were fitted to the earlier 16v engines, so I am wondering if fitting one to my later engine is a good idea as it will compensate for the lack of a super smooth finish. But as a composite gasket is thicker, are the heads the same? Now mine has been skimmed I doubt if fitting a slightly thicker gasket will matter. But, as you say Dave, there are people on this forum who may well know the answer.
1976 1.5Ti
1977 1.2Ti
1989 1.7 Sprint Veloce
1989 75TS
2003 147 2.0TS Lusso
2004 MX5 1.8S
2002 1.6 Focus LX
1977 1.2Ti
1989 1.7 Sprint Veloce
1989 75TS
2003 147 2.0TS Lusso
2004 MX5 1.8S
2002 1.6 Focus LX