I have recently purchased an 82 air cooled vanagon L.
It blows a little blue smoke.  I checked the
compression, and it is as follows:

Cylinder 1 100 psi
Cylinder 2 90 psi
Cylinder 3 85 psi
Cylinder 4 90 psi

The Bentley manual says minimum of 73psi with a max
range of 40psi.  So the compression is ok right?

If the compression is ok, then I should not be getting
oil in the cylinder due to the rings.  I imagine that
the valve guides are worn, and oil comes into the
cylinder via the intake valve.

Does anyone have a good way to check the vale guides?

Thanks,

Tony

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