[Vwdiesel] VW injection pump head seal replacement

[Rudy]

I just saw a listing on Ebay from a guy who reseals Pumps, has some good
pictures of this procedure and he doesn't mention using a spacer bolt.
There are several clear pictures of the procedure.  I searched "VW Diesel"
check it out.

Rudy 

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of Caleb Van Dyke
Sent: Tuesday, July 29, 2008 3:48 PM
To: vwdiesel at vwfans.com
Subject: [Vwdiesel] VW injection pump head seal replacement

I am attempting to put a new O-ring seal between the pump and head, but I
have a few questions:
 
The procedure that I am using (someone referred me to it from this site)
says I need to Install a short spacer and retighten the bolt down. Loosen
torx bolts a small amount (1/4 turn each) and tighten the center bolt down a
similar amount. Gradually work back and forth between the torx bolts and the
center bolt loosening the torx a little, tightening the center one a little.
When flush, the bolts are inserted clost to a 1/2" so there should be plenty
of threads still inserted into the pump to keep the bolts from falling out. 

Why do I have to install a short spacer? I do not see how putting a spacer
and then tightening the bolt down as I loosen the torx screws will
accomplish anything. I would think the bolt would just tighten down on the
spacer and then stop, not keep getting looser as I loosen the other bolts. 
 
Also, there is a procedure that I found on the internet for rebuilding TDI
pumps made between 1996-2003 that looks very similar, but doesn't mention
anything about this center timing bolt. 
 
 
Any help would be greatly appreciated.
 
Caleb


      
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