Although I've never done one, a leak down test might confirm your suspicions.

There should be info in archives about this type of test.

Running a higher viscosity engine oil may help.

There's LOT's in archives about that! :)

Cheers,

Neil.

--
Neil Nicholson. 1981 Air Cooled Westfalia -
"Jaco"  (Bustorius)

http://web.mac.com/tubaneil

Please send fav Vanagon/Westfalia links to me at:
musomuso1963@hotmail.com

On 10/12/07, Anthony Zygmunt <tzygmunt@yahoo.com> wrote:
> 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