psirage

hey guys i have a 90 rx7 convetible that i have just swaped a 13b turboII motor and trans (bec the n\a was shot and trans was wopped) i got the 13b turbo II motor from one of the best of japan site and when i got the motor after instaling i came to find out the rear rotor barring is bad. just mf luck i say but i put so much time and effort builiding the car up. i decided that im pulling the motor and either buy another one or build it im selling my wheels so that i can. im not new to building motors i have raced dirtbikes my whole life and 4 years ago got messed up and fucked my back up i had to sell all my bikes and i got a civic then sold it and got a wrx then me and my buddy went in on this rx7 in hopes to build a sami drift car but short being he was in a tragic accdicent and the car was then given to me i did so much work and im looking for the best idea of what i can do about the motor now. it still runs but i dont want to but all that stress on the frount rotor baring. so i will be able to rebuild un less other wise. any advise of what i should do would be greatly apprecieated

RotaryRocket88

iTrader: (7)

What makes you say a rotor bearing is bad?

psirage

i say that the rear rotor baring is bad more or less bec the bad ideling the - 9 vac and thecar seems to be running on no more then 30 hp and you can hear it. also after talking to my buddy that works at the mazda dealer and he said that aswell. and to me it would make sense the car will still run but when it gets revved or applyed any load the rotor is dispersing unevenly (no compression) and just causing to add exter stress to the frount baring untill blows and will lead to destroying the rotor housing. personally i just started with this motors i have 6 huge shop manels and been reading away bec im about to rebuild the motor. actlly today i will be pulling it out and cleanning it for prep to tear apart this weekend. i would like to hear any ideas or facts i love to learn. at first i asumed it was bad injecters, a bad relay, or so on but there all working

RotaryRocket88

iTrader: (7)

Nothing you've mentioned would suggest a bad rotor bearing to me, let alone a bad rear bearing. Why not a front bearing?

Compression test the engine, or make your Mazda dealer friend do it with their tester. Check for error codes, or make your friend do it with their code reader. Low compression or limp mode and/or a vacuum leak could cause a poor idle and no power.

FAQ: https://www.rx7club.com/showthread.p...55#post5131155