[Vwdiesel] Filling IP pump

William A. Thompson twogreek at cedarcomm.com
Thu Jun 17 21:30:52 PDT 2010

Exactly how I do it but it doesn't fill the hard lines between the pump and the injectors due to the spring pressure on the internal seat in the injectors.

After filling the injection pump by using a pump on the return line off the injection pump .... I crack the hard lines at the injectors and watch for fuel with the first cranking to get the air out of the hard lines. Then I retighten the hard lines and fire it up.

Mityvac will work but will take awhile due to low volume with each pump.

I use this ....


Or if that link gets broken ....


    ... Bill

From: "Bud" <budski at gmail.com>
Sent: Thursday, June 17, 2010 5:16 PM
To: <vwdiesel at vwfans.com>
Subject: [Vwdiesel] Filling IP pump

> I'm wrapping up my rebuild on a 1.6L NA IP pump.  Has anyone tried to
> fill the IP by using a vacuum pump (such as the Mityvac) on the out
> banjo fitting (fuel return line) to fill the pump and injector lines.
> Or is this a bad idea, as in I'll suck the seals inward on the pump?
> Thanks,
> Bud
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> Vwdiesel at vwfans.com
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