<VV> valve stem seals

[FrankCB]

Clark,
I agree for the EXHAUST valve guide.  But wouldn't there be a vacuum in the cylinder for the INTAKE part of the cycle that could PULL oil uphill around the INTAKE valve guide when the valve is off its seat and partly open???
Weren't stem seals provided by the factory on the stock Corvair engine??
Frank "wondering" Burkhard

In a message dated 02/09/10 17:04:53 Eastern Standard Time, chartzel at comcast.net writes:
On inline and V engines oil can run down the guides and cause smoky 
starts until you burn off the oil. 
On Corvair engines the guides actually run uphill so no oil is going run 
"down" the guides. 
There is no reason whatsoever to use stem seals on a Corvair. 
Clark Hartzel