[Vwdiesel] injection pump - lift pump possibility??

[Michael Snow]

I have found this product list (Excel spreadsheet in self-extracting ZIP
file)

http://www.vege.nl/vegelist.exe

from Vege Motoren in the Netherlands (ATK Engines in USA) to be helpful
when trying to determine the correct injection pump.  It lists the Bosch
part numbers instead of the VW number.  From what I have seen, the pumps
for a given engine vary only in the accessory brackets bolted to them.
This is not trivial, as pump disassembly is required for some bracket
installations.

I purchased a diesel Vanagon with an auxiliary electric fuel pump
between the tank and injection pump.  At first, it seemed like a good
idea because the pump had a slow leak a the cold start lever and would
lose its prime after sitting for several days.  In retrospect, it was
much better, and not much more work, to replace the o-rings on the cold
start lever.  The electric pump died, and I have not replaced it.  If
your pump and fuel lines are in good condition, the "helper" pump is
unnecessary, and a failed electric pump may damage the injection pump
before you figure it out.

I have also had the "won't pull fuel through the line" problem.  The
*real* problem was that the fuel line between the tank and the filter
was old and becoming porous.  The pump has enough suction to pull air
throuhg the rubber into a rotten fuel hose long before the hose actually
leaks fuel to the outside.  Check your fuel hoses!  They cost a lot less
than an injection pump.

Mike Snow



Will Taygan wrote:
> This is a multi-part message in MIME format.
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> Okay, I just picked up an 82 Jetta 1.6 NA.  The wiring is way messed up.. more on that later.
>
> Glow plugs shot, it'll start with ether and will idle okay..  I'm working on it.
>
> The injection pump seems to be the issue.  NOTHING coming out of the return banjo fitting on the pump, very little pull on the pump, it'll idle but won't pull through the air in the line from changing the fuel filter.
>
> The old fuel filter was almost completely full of water (ugh.)
>
> The $$ for a new pump isn't in the cards.  How has anyone's luck been at junkyards?  Ever find a good one?  Are what years are interchangeable with an 82 1.6l NA Jetta, I assume any other 1.6l NA, how about the 1.9l NA or 1.5l NA?
>
> ** Has anyone tried putting a lift pump onto the VW system to get the fuel through the pump?  Will this work?
>
> I don't see any leaks from the injection pump itself.
>
>
> Thanks,
>
> Will Taygan
> 81 vw pickup 1.6 NA
> 82 vw jetta 1.6 NA
> Concrete, WA
> --
>
>
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