help needed near South Bend Indiana

[Poolio65]

trying to find a leak after changing a head gasket

[doc1992]

try a air plug made from an old sparkplug and air fittings. pressurize that cylinder to 20 lbs. take a large diameter hose that will fit listen to intake, exhaust pipe oil filler and see if see bubbles in radiator filler neck. oh piston on tdc both valves closed of course. first though do a wet and dry compression test on all cylinders. i'm in chesterton.