bentley says a lot of things that really dont have much validity. like not
using a click-type torque wrench on the heads. why not? there's no solid
explanation. i dont see any reason why reversing a pump could damage it.
i've tried it and it works. hitting it with a hammer also works.

>From: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
>Reply-To: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: testing a fuel pump
>Date: Tue, 13 Apr 2004 08:59:27 -0500
>
>I think that if you read Bentleys instructions it states that reversing
>polarity can ruin your pump.
>You can go ahead and try it and let us know.
>
>Stan Wilder
>
>----- Original Message -----
>From: "Mark Seifert" <theburnvictims@HOTMAIL.COM>
>To: <vanagon@GERRY.VANAGON.COM>
>Sent: Tuesday, April 13, 2004 12:15 AM
>Subject: Re: testing a fuel pump
>
>
> > you can try reversing the positive and negative wires to the pump (+
>to -, -
> > to +) and crank the engine for a few seconds. this will make it pump in
> > reverse. sometimes when the fuel pump is clogged, running it in reverse
>for
> > a few seconds will clear it out. if not, you can try hitting it with a
> > hammer. seriously, this works too.
> >
> >
> > >From: Matt Faust <mobytype2@YAHOO.COM>
> > >Reply-To: Matt Faust <mobytype2@YAHOO.COM>
> > >To: vanagon@GERRY.VANAGON.COM
> > >Subject: testing a fuel pump
> > >Date: Mon, 12 Apr 2004 09:50:36 -0700
> > >
> > >Hi all,
> > >
> > >    What is a solid way to test a fuel pump?
> > >
> > >  Here is my problem... My '84 van quit running the
> > >other day.  I removed the line that exist the fuel
> > >pump, no fuel.  I performed the relay test according
> > >to the Bentley and it passed.  I measured the current
> > >draw on the fuel pump, it read 7 A.  I removed the
> > >line from the tank exit, a nice steady stream of fuel
> > >poured out.  I removed the line from the exit of the
> > >filter, also a nice steady stream poured out.
> > >
> > >   Can the fuel pump be plugged or bound somehow?  If
> > >it is jammed, will it still draw only 7 amps?
> > >
> > >Thanks in advance,
> > >Matt
> > >
> > >=====
> > >Matt Faust
> > >'84 Wolfsburg Weekender "Moby"
> > >'63 Westy SO-33 Sub-hatch "Rusty"
> > >
> > >
> > >
> > >
> > >__________________________________
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