Im going to buy a cheap leak down tester to run a leak down on my 7.3, these things run at 500psi. my compressor only puts on 120psi.

is thing going to be enought to run the test???

 

well now that i think about it seems like it would be pain in the *** to do a leak down on a ford. how would i find top dead center??

Unless i loosen up the rocker arms to let both valves close???? Is it hard to reset the rocker arm tension??

Truck is a 2000 f350