Quote:
Originally Posted by Arabian123
I can make DIY for measuring the Oil pressure, i got the previous sensor so i can drill it and make it like connector.
I will share results on cold and warm engine.
If I want to remove the oil pan, the easiest way is to remove the whole engine.. I wanted to avoid that because i don't have the opportunity to do that. But as so I need to remove it to check the chain and the oil pump.
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I have never come across any call outs for cold oil pressure.
I have seen call outs for hot oil pressure for some engines, my 996 Turbo for one. This was a constant displacement oil pump.
Oil pressure at n=5000 rpm, T=90°C oil pressure at approx. 6.5 bar (or 94 psi).
At hot idle oil pressure -- via the in dash oil pressure gauge was around 1.5 bar or 22psi. I never saw 6.5 bar even if I took engine to >5K RPMs. I suspect this was not due to the engine making less than spec'd oil pressure but rather a limitation of the pressure gauge.
Of course you need the oil pressure specs for the engine that you are going to be measuring the oil pressure.
Gear oil pumps can wear the end plates which with too much wear become internal oil pressure leaks.
My mechanic buddies advised me that if I was in an engine deep enough to have to check the oil pump best was to just replace it with a new *factory* oil pump. I used Vaseline to coat the oil pump gear teeth to ensure pump prime. But I also was able to spin the oil pump with an electric drill motor with a hex rod in its chuck that spun the oil pump with the engine not even turning over. I spun the pump until the pump primed -- the drill motor manifested sign of a load on it -- and oil appeared at the valve/cam hardware on top of the heads.