Join Date: Dec 1999
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Re: I think i have found my problem :o(
if you have an air compressor, CHOCK THE WHEELS, put it in NEUTRAL
rotate the engine until the valves are closed on that dead cylinder ( itll be pointing at that plug wire on the distrib cap)
hook air line to your compression guage hose ( right where the gauge plugs in) and pressurize the #1 cylinder at about 40 Psi
see where the noise comes from, itll tell you bad exh valve seal, bad intake valve seal, bad rings, bad head gasket.
just listen for hte hiss, increase the pressure if you need to to hear it escaping that cylinder.
I figure anything 120 or over is fine compression, I had a 304 that ran well, and was driveable although it made little power, it tested at 30psi dry and 50psi wet, in all 8 cylinders.
"They throw the best damn parties at the Rim of Hell"