Do we have a DIY compression test?
03-22-2010, 11:04 PM
#28
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I just received my plugs and wires today. I also got my bhr ignition kit today. I was going to throw on the bhr and plugs this weekend. My inspection is wednesday and I didn't feel like explaining my upgrade to anyone.
03-28-2010, 12:43 AM
#30
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Does anyone happen to know how much a compression test is from the dealership. I realize that prices may vary but id just like to have an idea. I cant really bring myself to buy a compression tester as i don't have any idea how to rebuild an engine. However i would like to know if/when its time for Mazda to give me a new motor.
03-30-2010, 09:40 PM
#32
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Okay! I have another thread on this but this one seems real good. I had mine done this weekend at the dealership and this is what the reading they got and said were good. Now i see the ones posted eariler are in the 90's and 100's. Is there 2 ways to show the readings? Am I running 6.0 out of 100? I hope not the stealership said this was good. I get maybe 200miles to a full tank. Thats babying the car no speeding at all. If I run it hard I get 160ish or less. Please help. Thanks
@ 261 rpm
#1 5.4, 5.8, 6.0
#2 6.1, 5.8, 5.7
*EDIT*
Aftersearching the forum i found this.
It was from a manual.
The standard is 8.5kgf.cm2 120 psi @ 250 RPM's
Minimal is 6.9kgf.cmw 98.6psi @ 250RPM's
What do I do now? Did they do it at a higher RPM to get higher results? ***** F@#kers
@ 261 rpm
#1 5.4, 5.8, 6.0
#2 6.1, 5.8, 5.7
*EDIT*
Aftersearching the forum i found this.
It was from a manual.
The standard is 8.5kgf.cm2 120 psi @ 250 RPM's
Minimal is 6.9kgf.cmw 98.6psi @ 250RPM's
What do I do now? Did they do it at a higher RPM to get higher results? ***** F@#kers
Last edited by Zonly1; 03-30-2010 at 10:10 PM.
09-20-2010, 01:58 PM
#33
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Okay! I have another thread on this but this one seems real good. I had mine done this weekend at the dealership and this is what the reading they got and said were good. Now i see the ones posted eariler are in the 90's and 100's. Is there 2 ways to show the readings? Am I running 6.0 out of 100? I hope not the stealership said this was good. I get maybe 200miles to a full tank. Thats babying the car no speeding at all. If I run it hard I get 160ish or less. Please help. Thanks
@ 261 rpm
#1 5.4, 5.8, 6.0
#2 6.1, 5.8, 5.7
*EDIT*
Aftersearching the forum i found this.
It was from a manual.
The standard is 8.5kgf.cm2 120 psi @ 250 RPM's
Minimal is 6.9kgf.cmw 98.6psi @ 250RPM's
What do I do now? Did they do it at a higher RPM to get higher results? ***** F@#kers
@ 261 rpm
#1 5.4, 5.8, 6.0
#2 6.1, 5.8, 5.7
*EDIT*
Aftersearching the forum i found this.
It was from a manual.
The standard is 8.5kgf.cm2 120 psi @ 250 RPM's
Minimal is 6.9kgf.cmw 98.6psi @ 250RPM's
What do I do now? Did they do it at a higher RPM to get higher results? ***** F@#kers
09-20-2010, 03:14 PM
#34
And they disconnect the Eccentric Shaft Positioning Sensor to disable the ignition.
The fuel pump fuse is also removed so it doesn't inject fuel during this time also.
RPM is determined by the number of compression pulses in a certain amount of time.
You have much to learn...
09-20-2010, 03:19 PM
#35
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iTrader: (46)
I paid $400 for my rotary compression tester, so you won't find anything cheaper than the dealer.
Here is a couple screen shots from a test I did on an engine.
Maybe a visual will help you understand what I'm saying:
Attachment 153423 Attachment 153424
Here is a couple screen shots from a test I did on an engine.
Maybe a visual will help you understand what I'm saying:
Attachment 153423 Attachment 153424
09-20-2010, 03:25 PM
#36
I have the ReCT-MMT unit from Rotary Diagnostics:
http://rotarydiagnostics.com/pricing%20combined.htm
It only comes with one transducer (so one rotor test at a time), but the unit supports up to 4-rotors so I can buy more transducers later if I want to test both rotors together.
http://rotarydiagnostics.com/pricing%20combined.htm
It only comes with one transducer (so one rotor test at a time), but the unit supports up to 4-rotors so I can buy more transducers later if I want to test both rotors together.
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