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Re: [T3] No. 2 Exhaust Valve Problem


<x-charset iso-8859-1>Are you SURE they are genuine VW?  do they have VW cast into them?  most
original heads are gone by now...  BUT... if your running springs that are
too stiff that could pound in the seats too.  Stock engine should run stock
springs, you wont gain anything from the stiffer ones but perhaps a wee bit
of high end RPM.

Do this:  Call Berg Tech line... hopefully youll get Clyde and tell him
about the genuine VW parts your using and the problems your having... make
it sound like you want to buy some of their stuff and they'll keep talking
:)  But see what their recommendations are, if theyve had any problems with
VW heads and the stiff springs and if the Bugpak springs are perhaps just
too stiff.

Lap the cylinders in... coarse valve grinding compound at first then the
fine stuff, and providing your studs are secure your blowby problem will go
away.  Make sure you get all the carbon off the sealing surface on the
cylinders though.

Your lower end should be fine... get a head, get those springs out of there
and you should be fine.

Keith

> But these are genuine VW heads from my 71 Fasty.  I personally rebuilt
them
> with new guides and new VW valves all around.  Only did a 3 angle valve
job
> to the seats.  Only non-stock part of the heads are the springs.  They are
> bugpack hi-rev single springs.
>
>
> >You have a SERIOUS blow by problem at the head seal.  with a new engine
you
> >should see no carbon outside the combustion chamber and the sealing
surface
> >should be uniform silver.  Did you lap the cylinders in??
> >
>
> Did not lap the cylinders in.  Have never heard of doing that.  I
personally
> resurfaced the head surface, though.  The P&C are new. I was really
> surprised by the amount of blow-by.  Maybe will try lapping them in.  Not
> sure what else to do about that.
>
> I will have to try to find another head.  I think I will try to use this
> head until the snow flies and I get my winter car out.  Then I can redo
this
> engine again. 8^(  OR at least the head.
>
>
> Later,
> John Jaranson
> '71 FI AT Fasty (Jane)
> '66 Square (Sophy)
> About Half a Late Square (Organ Donor)
> http://mywebpages.comcast.net/jaransonT3/jaransonT3/  (This is my new
> website address)
>
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