Quote:
Originally Posted by Shorebilly
be careful if you use compressed air......if the oil cooler is weak you could hear a loud noise and have some shrapnel flying around your shop.....
it's much better / safer to use a hydrostatic type test.......liquids are not compressible, thus if there is a crack or weakness it will not explode, the liquid leaks out and pressure drops off instantaneously......
you could use an old hydraulic jack...or even a FI Pop Tester pump.....and pipe it up with a pressure gage and a valve (pressure gage between cooler and valve) on one end and plug the other.....pump it up to 1.5 x working pressure......3++Bar is most likely somewhere between 45 and 60 psi.... so you would want to test between 65 and 90 psi......pressurize the cooler and shut the valve......wait awhile and see if the pressure drops off.....if the pressure remains stable for a half hour or so....you're good.....!!
SB
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When my car idles and the oil is cold I get 89 psi. The Oil Cooler should easily handle 100 psi of air pressure. Your Oil pressure gauge only goes to 3 bar but you have more oil pressure than that.