[Vwdiesel] More Quantum Questions?

[Tony and Lillie]

First of all, you have TurboDiesel Injectors in your Quantum. The TD's are 
the 155 bar injectors, the N/A's are 130 bar.

You have the option of having them rebuilt (I'd be going with the N/A 
injectors, as that's what your IP is designed for), rebuilding them 
yourself, or just getting rebuilt ones online. Either way, something 
obviously needs to be done, since you don't have a matched set.

Tony

----- Original Message ----- 
From: "William J Toensing" <toensing at wildblue.net>
To: <vwdiesel at vwfans.com>
Sent: Sunday, July 04, 2010 12:03 AM
Subject: [Vwdiesel] More Quantum Questions?


>I was gone for most of the month of June so finally got back to working on 
>my Quantum. I sent my original IP back to a firm that advertises on eBay to 
>rebuild injection pumps for $375 including shipping both ways.  The rebuilt 
>IP arrived while I was on vacation. Yesterday I removed the old IP but 
>haven't installed the rebuilt IP as I decided to test the injectors, which 
>are easier to R&R with the IP removed. The #1 injector appears defective as 
>it starts to spray a steady stream at 1000 psi but the other 3 popped off 
>at 2000 psi, but was unable to observe the spray pattern. This is the first 
>time I used the injector tester I bought a few months ago from the 
>"Mercedes Source". Each injector seems to have its own serial number but 
>found the following markings common to all the injectors" "060" enclosed in 
>an oval circle, then 149 155 BAR. Then another number, "KCA30536/4".. I was 
>thinking of using the injectors off my 1980 Dasher diesel parts car but 
>those injectors were marked with different numbers & marked at "130 Bar" as 
>opposed to the "155 Bar" on the Quantum's. Also, two of the Dasher's 
>injectors appeared to be defective  & the other two popped off at 1600 psi.
> I wonder if I should try to repair the one defective Quantum injector, 
> replace all 4 with new ones, or take all 4 of them out to a commercial 
> shop to be rebuilt? The Mercedes Source tester came with a bunch of shims 
> & other parts to rebuild the injectors. Instead of testing the injectors 
> with diesel fuel, I decided to use "diesel purge" fluid since I felt this 
> would do a better job of cleaning the injectors. Comments appreciated.
> Bill Toensing, Nevada City, CA
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