NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   No Compression (https://www.nopistons.com/2nd-generation-specific-17/no-compression-18168/)

DJ Blu 05-31-2003 02:15 PM

aight... i finally got around to doing a compression test in my 87 T2. the front rotor yeilded about 70 lbs per sq. inch and the rear rotor had no compression... zero.



first, is the 70 in the front correct, secondly what should i do about the rear rotor???



thanks,



-jeff

ChainSawOnSteroids 06-01-2003 07:34 PM

0? 70? what you mean thats your compression? i believe it should be three readings per rotor. like 70,70,70 - 70,15,70 just an example

rmaiersg 06-01-2003 09:23 PM

He probably means that it has about an average of 70 psi on all three faces. If a seal is shot than you'd get one reading and then two with nothing or little pressure.



I believe your engine is shot. Has it been sitting for a while or did this just recently happen? Maybe a seal is stuck. You can try the ATF trick (in FAQ sec.) but usually no compression means you're fucked.

DJ Blu 06-03-2003 08:42 PM

thanks, i'm gonna try the atf trick, but i think a rebuild will be in order.



thanks for the input.

ILUVMY88CABRIO 06-03-2003 09:28 PM

Sucks about your engine, but why did you have to start 3 threads on the same topic?

Geoffman72 06-03-2003 10:02 PM

Only need one topic. https://www.nopistons.com/forums/pub...DIR#>/wink.png

Apex13B 06-03-2003 10:05 PM

chill out jeff, i guess he just wanted an answer, i'll be looking at his car when the rain stops and update you guys https://www.nopistons.com/forums/pub...IR#>/bigok.gif tomorrow or the next day

Geoffman72 06-03-2003 10:38 PM

No chilling needed. He made multiple posts so I cleaned them up. https://www.nopistons.com/forums/pub...DIR#>/wink.png

DJ Blu 06-08-2003 07:02 PM

ha thanks for cleanin em up for me... i started the others cuz no one was respondin at all... my bad



-jeff


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