Re: Oil Pump in 84 Quantum TD (84QuantumTD)
Ok, you think you're going too hot. It would be best to make sure if you are! If you are, try to replace the thermostat (go to the dealer to get teh best ones, same with oil filter). If the engine is running too hot, the oil will be too thin and the light might flicker. I dont think you need to remove the engine to replace the oil pan, but I'm not sure. My sister had an '87 Passat (same as Quantum) so I know the cars a bit. You need to drop the oil pan, but I dont know the exact oil pump replacement procedure so... It's the same as for a regular gas engine though.
If the engine is worn, it might not help with a new pump. The main bearings may have too big gaps, which means that there wont be any back pressure for the oil pump, this will make the oil pressure drop. I've experienced this on an aircooled VW.