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RE: [T3] Valve stem seals ?


Ive been told in the past that our rocker areas fill at least half full with
oil at speed on the highway, suggesting that oil could easily get sucked
into the intake guides and have no problem oiling the exaust guides.
Is it true that the heads fill with oil?

One thing that my Squares engine has done at intervals over its lifespan of
100Kmi so far is to FOG THE TOWN on deceleration!  At its worse when Ive
been at speed on the highway for a while... I mean I would turn the sky in
your rear view mirror blue on a cloudy day!

Lately it has stopped doing that again, hopefully for a while.

Keith'






As they are positioned in the head in relation to the oil supply. And,
they are further canted at an upward angle decreasing further, the
chance for oil to get into the guides. Even without stem seals, ACVW's
are rarely seen burning oil on deceleration, unlike a VW Rabbit, and
other upright engines.
If you ran an ACVW engine rotated 90 degrees, then you would not have
this problem.

VW didnt use anything at all until about 1966. When they started
demanding more out of their engine design.



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