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Topic: no compresson (Read 994 times) previous topic - next topic

no compresson

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

Re: no compresson

Reply #1
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?
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: no compresson

Reply #2
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