Tandem pump repair kit.

[madstaff]

Has anyone rebuilt their tandem pump using a kit like this -

http://www.ebay.de/itm/Dichtsatz-fu...98?pt=LH_DefaultDomain_77&hash=item19fc03efae

Or, has anyone had one to bits and can remember if all the necessary parts are in this kit??

Thinking of rebuilding mine as i have fuel drain back problems and it seems to be from reading on t'internet it could be that air is leaking from the vacuum pump chamber into the fuel chamber, causing fuel to drain back.

This problem is magnified when parking nose up with 1/4 tank or less of fuel.

 

[gary_a4_quattro]

I had similar problem on a previous non-Audi vehicle............ it was the fuel filter canister seal allow air in, resulting in the drain back issue.