I've been reading the old posts on oil pressure but still have questions. I have a 1970 500L with a 'good' used engine (dealer's terms). When I received the car, the thermostat was stuck closed and the oil pressure light would come on after 10 minutes. New thermostat now and I still have the oil pressure light problem. I replaced the sender with a mechanical gauge and see I have 52psi cold, 6psi hot and 0psi when driving. I now have the oil pump out as the easiest solution to try first is to replace it. From visual inspection, it looks perfectly fine. No sludge in the oil slinger, passages look clean, pump looks good. I can't really tell how worn the gears are but they appear OK. Could my problem be the oil pressure relief valve? Is this the spring built in to the pump itself? Is there a quick test for that?
MrFiat has new oil pumps for a 500R/126 with a note they need modifying to fit a 110F. What modification? Should I just buy a 126 timing cover and oil pump? Where can I get one complete, preferably in the US? Would it still need modification? I like the idea of a larger oil pump but want someone to say it will work and how!
MrFiat has new oil pumps for a 500R/126 with a note they need modifying to fit a 110F. What modification? Should I just buy a 126 timing cover and oil pump? Where can I get one complete, preferably in the US? Would it still need modification? I like the idea of a larger oil pump but want someone to say it will work and how!