Leaderboard

There is another way to look for a cylinder that is leaking into the coolant system, one will have to sacrifice a cylinder compression tester, one removes the braided hose end from the gauge, then installs a male barb quick release air fitting into the open end & secures it, now assuming that you have an air compressor one screws the spark plug end into each cylinder & pumps in 100lbs pressure. Remove the rad cap, if there is a leaking head gasket to the coolant system this will find it. This is also a good way to find leaking valves that are not seating, with the piston at TDC compression all valves should be securely closed, if there is a valve that is not you'll here the air (whoosh) at either the tailpipe or the throttle body.