i'm helping my buddy with his motor swap in his truck, and we've got no compresson, we thought it might have jumped a tooth on the timing, so we re-did it ..and re-did it again..and again..all and all about 5 times....still nothing, we get about 3 PSI on the gauge..,
We pulled the valve covers of, and watched the rocker arms move really well,
any body know what the problem could be ?
we tryed to pour some oil down the cylinder, and let it sit for about 5 mins....and still no compresson, each hole has about the same 2-4 PSI
Does the gauge actually work? Try it on your car.
Is the carb/throttle (if installed) held open during the test?
Did you have the engine apart for a rebuild, or is it a previously running engine you're just dropping in?
the motor came outa my old truck, (RIP, it was still running when i bailed out of the wreck)
i know the gauges works, for shure,
carb wasn't on the motor,
he took of the rockers, and still nothing, we are assuming the rings collapsed, so well go from there