2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Low Compression?

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Old Jul 11, 2005 | 07:00 PM
  #1  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
Low Compression?

hey guys today we checked my compression on the 2 rotors and they were both 60ish. the car idles rly funny, sounds like it has a bridgeport and starts wierd too. but drives fine. anyone have a idea of whats going on? just happened 3 days ago i noticed the idle went down and wierd on me at a set of lights...
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Old Jul 11, 2005 | 07:21 PM
  #2  
Stanello's Avatar
backslash beanbagrace
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From: San Francisco, CA
60psi on each compression face (3), on each rotor?

60-60-60

60-60-60 ?
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Old Jul 11, 2005 | 11:14 PM
  #3  
homebrewer's Avatar
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Dump a full 16 oz of 2 stroke oil in the gas tank and run her for a couple of miles. If engine seems to run better then its your APEX seals that are on their way out. I'd also check your oil metering pump to ensure it is working.
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Old Jul 12, 2005 | 12:09 AM
  #4  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
hey to verify, my mechanic checked the compression and i was told 60ish on both rotors. thanks homebrewer il try that first thing tomorrow.
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Old Jul 12, 2005 | 12:20 AM
  #5  
Wankel7's Avatar
Haven't we ALL heard this
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From: Indiana
Man is it a fresh fresh fresh rebuild?
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Old Jul 12, 2005 | 12:21 AM
  #6  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
no i bought it in april and the owner says its been sittin for a couple years with a jspec, so i guess he dropped the jspec in and it was sitting for 2-3 years.... i dont doubt it by looking at the paint
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