compression test results
#1
kevmac
Thread Starter
compression test results
hey all. i got a compression test done on my new rebuild engine. i took it to a mazda dealer and watched them like a hawk!
the engine has a large street port and fd rotors, and 2mm oem 2 piece seals.
the results were..
Rotor 1
83
82
86
Rotor 2
83
82
86
is this normal compression on fd rotors? what do you guys think.
the engine has a large street port and fd rotors, and 2mm oem 2 piece seals.
the results were..
Rotor 1
83
82
86
Rotor 2
83
82
86
is this normal compression on fd rotors? what do you guys think.
#2
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#8
kevmac
Thread Starter
a local rotary guru. i am not worried about his work. he's very good at what he does.
it starts up fine. idle is very good. i may just get another test done in a few weeks.
still going to give the dealer a call tomorrow and ask if the test was done a full throttle.
it starts up fine. idle is very good. i may just get another test done in a few weeks.
still going to give the dealer a call tomorrow and ask if the test was done a full throttle.
#12
kevmac
Thread Starter
i have the result sheet infont of me. and there is some other info on it..
Rotor1
283 - engine rpm
4.51 max. rotor 1 - min. rotor 1
0.251 max. rotor 1 - max rotor 2
rotor2
281 engine rpm
4.016 max. rotor 2 - min. rotor 2
Rotor1
283 - engine rpm
4.51 max. rotor 1 - min. rotor 1
0.251 max. rotor 1 - max rotor 2
rotor2
281 engine rpm
4.016 max. rotor 2 - min. rotor 2
#15
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impact, sounds like it's indicating the variance between the different rotor faces...the highest face has 4.51 more psi then the lowest. If you look at your PSI figures, that makes sense (highest is reported as 86, lowest is 82).
85 PSI at 250RPM is the minimum pressure according to the shop manual (for a '91 at least)
85 PSI at 250RPM is the minimum pressure according to the shop manual (for a '91 at least)
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