phantom Wolfsburg Wizard
598 posts · joined Mar 2004 ·
I have to change the fuel pump after a long running issue - its nothing flash - stock 1600 in a '72 Kombi.
The pump going in is a new Brazilian one, the changeover went OK and it started nicely when fitted. However it only ran around 2 minutes and then died, very much like if it were starved of fuel.
I tried changing the hoses on the pump, no change. I now believe the pump isn't working. I think it ran initially with leftover fuel in the hose to the carby but is now starved.
What I didn't notice until I pulled it back out is that the old VW pump had the pump 'tongue' protruding from the bottom of the base, where it contacts with the rod from the block.
The new pump has the tongue slightly inside the case, I believe the rod isn't contacting the tongue enough to make the pump function.
I note the black rubber piece that sat under the original pump, like a large gasket between the pump and the body. Should I remove that so that the pump will make contact, or will that be too much?
Pics below.
Advice appreciated, I can't get the car to a VW mechanic currently and have to fix it at home. Thanks!
Old pump
New pump, recessed tongue, and rubber block