From I understand, the dry test numbers strong so close there wasn't need go further. the wet test notable increase all cylinders, rings be bad. the leak test numbers very strong, the exception #8, still a tolerable percentage.
The thing surprised was frankly good dry numbers looked. . second surprise how inconsistent wet numbers are. that was at dry I'm looking cylinder 4 be most to fail, the cylinders kind all the place too. . done compression test day a .
Compression Test Results. GOOD: Spec to Wagon: Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 15: 09-05-2007 02:26 PM: compression test results, to if good bad: tegra_Devil: Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 8: 07-13-2007 08:09 PM: compression test readings, good/bad? RallyOttawa .
The compression test measures much air pulled and compressed a short time period. Reasonable pressure numbers consistency basically means you don't major restrictions the air or and gapping holes the pistons, hung valves.
I to check numbers, I wanted ask (I'll test shortly) general "normal" numbers for a cylinder compression test. Hope is clearer ;-) see Ali put 170-180 psi a good motor (thank as always) -- is original engine the NA Supra probably 150K miles it -- runs ok, I oil .
185-190 pretty good, is my engine just break-in. I'd 160 pretty (for newer motor), would expect from low compression pistons maybe, under 9:1, a high overlap cam wont build much compression the test. Heck my Talon 8.5:1 pistons 170psi.
Compression be 10% so all cylinders. #1 #7 low. Squirt teaspoon oil each these cylinders repeat test. compression up, have weak compression rings. it not up, may a valve seating burnt seat poor adjustment.
Looking the numbers, we a at wet numbers assume second column the cylinder good, numbers spot on. #4 a higher reading, everything looks good (if a high). to I saw, compression the Mazda 4-cyl be 120 180 psi.