Coolant Pressure Test ??? Proper radiator cap psi???
1988 Jeep Wrangler YJ re-manufactured 258cu/4.2L, Offenhuaser,Holley 4 barrel- Wrangler tub on a CJ frame, lifted 6"
Water pump gasket was leaking a bit & thermostat gasket. New gaskets, pump installed ...
Now doing the pressure testing again to check my work...
How long should I leave the pressure tester in to test it?
How many pounds should I bring it to?
Should I do test cold or semi hot ?
Should I pressure test it over night, for a 10min, or a few hours?
I've been testing it at 10-12lbs for about 10min, seems to be holding pressure longer then 10min w/ very little drop in pressure. , all seems to be fine, brought it to 15psi, bottom hose leaked a bit.
what is the proper Radiator Cap PSI for a 1988 YJ 4.2L ???
Ive read from 13lbs and or 15/16lbs
Thanks for any help guys, sorry for all the questions....