[Vwdiesel] Rules was Re: More Quantum questions progress
decker at toledotel.com
decker at toledotel.com
Tue Jan 20 07:49:54 PST 2009
Three things I would always do when I acquire a new to me VW or Audi
diesel or gas. ( 1 ) I replace the belt. On interference engines like the
diesel or the high compression gasser's you bend valves at best and it could
be worse. On non interference engines it costs too much to be on the road
and have to have a shop change a belt. NEW TIMING BELTS ARE CHEAP INSURANCE.
( 2 ) Before installing a VW/Audi head I take it to my machinist and have
him true it with his water bath sanding belt. ( 3 ) On a diesel I always use
the thickest head gasket available. ( never measure piston protrusion and
never have a problem ).
Others may have different ideas and procedures and they may be better
than mine but this is what my VW Guru taught me and these are the rules I
live by.
Brian Decker
----- Original Message -----
From: "William J Toensing" <toensing at wildblue.net>
To: <vwdiesel at vwfans.com>
Sent: Monday, January 19, 2009 9:26 PM
Subject: [Vwdiesel] More Quantum questions progress
> Went to the local machine shop to pick up my head. He informed the head
was warped 11,000th of an inch & showed me. I had measured improperly, only
along the edges, so I learned something new. He measured in the center of
the head & could move a 10,000th feeler gage between the straight edge where
the cylinders are closest to each other. He said he could properly rebuild
the head surfacing the head, doing a new valve job so the valves will still
have clearance between the pistons when open. I decided to go for the full
rebuild since I would otherwise have to look for another good head.
> I have decided to go with the existing timing belt since it & the other
belts look like new. Looks like I would have to remove the radiator shrouds
& possibly the radiator to change out the belts. Thanks for the info on how
to change the belts & to properly tension the timing belt' Got the new
tensioner pulley today. FYI, the Quantum has about 117,000 on the odometer,
which looks correct. Have a new or rebuilt water pump. Guess I will have to
pull it apart to see what type of impeller blade it has, plastic, stamped,
or cast iron.
> Bill Toensing, Nevada City, CA
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