Quote:
Originally Posted by whunter
3 BAR converts to 43.51131 psi = (lbs/sq.in)
You should not need to test at a higher pressure.
Air molecule density is lower than oil molecule's = it leaks easier in a water test tank given any escape path (crack)..
Have a great day.
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If it leaks out easier that would make the test with air even more conclusive.
ForcedInjuction had told me that the oil pressure was over 100psi (I do not remember the exact figure but it is about the amount the the Oil Pump Relief Valve opens at) but I did not believe that.
When I was looking for a place to tap in my Bypass Oil Filter system I drilled and tapped 2 holes through the top of my oil filter cap.
I installed a test pressure gauge and with a cold Engine my pressure was around 89 psi at idle. If I revved the Engine hot or cold the pressure went up to 97 psi but no higher.
That 3 bar pressure gauge dose not reflect your maximum pressure at all.
It is easy to check for yourself.
Remove your Oil Filter Cap/Top and look inside to see where the casting webs are. Pick a spot where you do not drill through a web and drill and tap it for 1/8" pip plug; hook up your test up there gauge.