I have had a slight oil leak on my 1.6K for over a year now and I am despairing of ever finding out exactly where it is from.
I see oil on the exhaust side of the engine appearing to start at the front edge of the head gasket join, spreading down and back to coat everything in sight. Since the start of my problems my head gasket has been changed twice and a suspect cam seal has been replaced - all to no avail.
I have currently got my head off again and have been examining the gasket carefully. It show no signs of an obvious breach in the relevant area but there were traces of oil on the underside outer edge leading from the head dowel area.
Looking at the head I can see some very light markings where the steel dowel has made contact with the head but I can't feel any ridges with a fingernail.
After I removed the alternator to get a better look, I found an awful mess with oil everywhere. Could this indicate a leak from the oil filter area? Possibly spraying up far enought to reach the head gasket join? Or is it simply where the oil has run down and I have never been able to reach to clean before?
What to do? Should I just clean it all thoroughly, reassemble, take for a test run and then pull apart again to find the source?