You are completely correct in saying the cooling system is NOT to be overpressurized above 15 psi. To find leaks I usually pressurize in steps. First I take it up to around 5 psi and look around. If it is shooting out now from somewhere you don't need 15 psi to find it! I let it sit for a couple of minutes and if things look good and then go up to around 10 psi. Look around again and if you think it is OK, NOW I go to 15 psi. This is done WITHOUT RUNNING THE MOTOR!!!! If you run the motor the pressure will climb due to the heating and expansion of the coolant. It is VERY EASY to overpressurize the motor this way. The radiator cap should also be tested to verify it will release before going above 15 psi. You will probably blow the end tanks off the radiator before you damage the motor but who wants to find out? David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, Woody <BePositive2000@xxxx> wrote: > To Dave T's suggestions for pressurizing the cooling system to find the > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/