<VV> Valve stem seals

[Mark Durham]

So Craig, you are saying that the lifters produced for Corvair use today do
not supply as much oil to the valve train as they used to. Hmmm, didn't know
that. That is certainly something to consider. Mark Durham

On Wed, Feb 10, 2010 at 9:05 AM, craig nicol <nicolcs at aol.com> wrote:

> Here's my recommendation: Leave the intake seals off after installing new
> valve guides or sleeves. Here's why: Original Corvair lifters, which
> haven't
> been available for about 40 years, permitted a large quantity of oil in the
> valve cover region. The lifter we have now throw a fraction of the oil so
> there's very little present at the valve stems.  Teflon seals are very
> effective at wiping oil so the net effect is "not enough" lubrication to
> the
> valve stems.
>
>
>
> Leaving the seals off allows the small quantity of oil to lubricate the
> valve stem, which extends it's life and promotes a safe break-in. If a
> guide
> is starved, the valve and guide will seize which either causes breakage in
> the valve train or forces the valve and guide into the combustion chamber,
> which takes out the head, piston, and rod. If oil consumption becomes an
> issue many years down the road, that's when I'd install seals.
>
>
>
> Net effect in our low oil environment: leaving the intake seals off
> promotes
> longer guide life and safer break-in.
>
> Craig Nicol
>
> 66 Monzas, 61,62 Rampsides
>
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