crewchief264

does anyone know what the cylinder psi should be for a 97 maxima? and what the amount of time it must hold that psi----ie leak down test. Thanx

Scruit

you should get something close to 200psi for a compression test, but your air source will max out at 120-150psi.

The cylinders will always leak a little - it's not like you're looking for 0% leak after an hour... The trick is to figure out WHERE it's leaking TO. Watch for bubbles in the radiator, listen at the exhaust, intake and dipstick for hissing...

Miasma

140-200 is the very low to very high acceptable range. most people get around 175 at sea level. 200+ is not uncommon, but indicates a significantly higher compression ration than the 10:1 that the engine is designed for.

jdmmax

iTrader: (6)

fsm says compression sould be between 154-180 i believe.

mechanics tell me it is important to be above the low but all the cyclinders sould be consistant.