jworkman21

my best friend bought a 94 civic lx 1.5 last week and started smoking from the exaust on the way home. It' blue smoke so i ripped of the heads checked seals replaced vaulve seals, did compression test on each cylinder 141psi on all four. And it's burning about half of it's 4 1/2 quarts of oil in about 20 miles, im baffled pls help....

slowcivic2k

141 psi is borderline the minimum compression needed to run the engine, what do the spark plugs look like?

gsrhatch2356

best thing to do is get a leakdown tester its like a compression gauge but one side of it hooks up to a compressor and you run it down through the spark plug hole then turn the motor over till both intake and exhaust valves are closed on that clyinder then open up the leakdown tester and if you hear air in the oil pan you know the rings are shot or sorry just thought of this cause you should do this first but its called a wet compression test do a dry one first which you have and then on the same clyinder squirt just a few squirts of oil into the spark plug hole and then do another compression test if the numbers jump up drasticly then you know you got bad rings cause the oil in the clyinder will seal up the bad rings causeing better compression. try that first

jworkman21

Thanks sound copeastetic i'll try it, i was hoping it wasn't the piston rings but hey what can you do.