Thread: oil out the exhaust ports

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Hear is some other things I have seen over the years.
1-oil geting into the intake by the gasket or valve guides will almost always
mix with the incoming fuel mixture and will be burnt, thus providing smoke
out the exaust.
2-ring problems if bad enough will have pure oil in the exaust ports.
3-some ring problems, 2nd ring put on up side down, some type oil rings do
not have enough protrusion out or beyond the piston.
4-as for the oil runing down from the guide I see this in after market heads
as they have more clearence on the exaust guide to help prevent the valve sticking, bronze guides tend to srinke when they get over heated.

hope this has been of some use. RC100