Help..1984 Diesel Rabbit

[ssauer]

My husband is an ASE Mechanic but he's recently changed careers and is now driving truck over the road...the seal is leaking on my fuel injection box and dumping fuel...I don't have a mechanic, my husband has always done our work.. how do I change the seal? Help...

[zagrot]

if the leak is on the belt side of the pump the seal can be replaced with the pump in place with a special seal removal/ instalation tool provided that the bushing in the pump is not worn beyond working tolarance. if it is leaking on the side with the pipes it will have to be disasembled for replacement. if the leak is on the belt side of the pump i'd reccomend not driving the vehicle untill the leak is repaired because diesel fuel on the timing belt will lead to belt breakage and fairly expensive engine dammage, if the leak is on the side with the pipes be where of the water hoses in the waterpump area developing leaks, excessive loss of water while driving can lead to head warpage or at the least a blown head gasket (among other possibilities).

[ssauer]

Do you have any idea what a ball park cost of a used injector pump will run.. I took it to a shop and they said it was an o-ring, they got it apart and now they said that wasn't it and they can't get it to throttle up.. i'm getting a bad run and things are getting messed up... any suggestions, it's an internal seal..

[CoriolisSTORM]

Sorry to suggest this, but vwvortex.com will probably be quicker to deliver you some answers about it.

[zagrot]

it won't rev at idle or under load? if it won't rev under load (maybe won't go faster than 20mph) it is possible that they exchanged the banjo bolts on the fuel fittings. the one with the small hole (it is barely noticable) should be on the top near the throttle arm and marked "out" on top, and the one with the big holes (three of them) should be in the fitting near the timing belt end of the pump.

that is assuming that the leak was fixed.

used pumps go for around $100- 150 on ebay, rebuilt ones cost more and new pumps cost around $1800- 2000 (no, that was not a typo). it sohould only cost about $300 to have it rebuilt, but you'll have to send it away unless there is a pump rebuilder in your area, your shop should be able to give you some insight here. practically any bosche pump for a four cylinder will work, but if yours is not turbo don't bother buying one with the aneroids (big ufo looking things on top).