leak down test

i just used a cyl leakage tester that i use now and then at the shop i work at. i just sealed off the exhaust port and the intake manifold and set it to about 6 psi and sprayed soapy water everwhere thier could be a leak. i found my intake manifold gaskets and crank seal leaking. replace gaskets and crank seals and retested and good to go..