[Vwdiesel] VW injection pump head seal replacement

[Matt_Lisa]

Here's a really good replacement procedure writeup:

http://www.dieselgeek.com/TDI_Injection_Pump_Head_Seal_Replacement.htm

If you haven't seen it, I hope it helps.

-Matt
http://matt_lisa.home.sprynet.com/

-----Original Message-----
>From: Caleb Van Dyke <awaytothesea at yahoo.com>
>Sent: Jul 29, 2008 6:47 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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