Question about 1983 Volkswagen Rabbit Pickup
Replace fuel filters. Try a quart dosage of diesel cleaner, Howes "cleaner meaner" If the car has been sitting, it will get peeppy as you use it. There is a screw, right side, on the injection pump, with a collar around it set at the factory. Loosen the collar and turn the screw in, it will turn up the pressure to the pump. Failing all that, you may have a tired pump, see how much vaccum it pulls by hooking up a vacuum guage. It should be around 5 hg inches at a fast rpm (as if you were on teh interstate) Make sure the car has not blown a head gasket, it should not expell coolant from the resevior cap after a drive, check for gurgling. Make sure the timing is correct line of the timing belt marks on pump, cam and flywheel. If there is onbe cylinder misfiring, crack openb the nut on the #1 injector line and see if there is any change. Repeat with 2-4. Record results. If you isolate the bad cylinder, swap injectors from another5 cylinder and see if the problem moves. If not, do a wet (squirt oil) and dry compression test to rule out bad piston rings.
Posted on Aug 30, 2008
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