[svx_commuter]

Originally posted by gl1674


There are tools similar to compression testers, but they rely on compressed air and they measure the rate the compressed air leaks at a stationary engine. The benefit of air leakage tester is that you get to hear where the leak is - valves - inlet manifold, exhaust, pistons - oil sump or gaskets - see it in coolant.

Yes I tried to do this to my used engine and had some success. How do you hold the piston at top dead center so the valves stay closed?