car vibrates when drive and reverse

1985 MAZDA RX7
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WILLIE BAILEY
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  • 14 POSTS
I installed a 1983 automatic transmission in my 1985 rx7. the car vibrates when drive and reverse are selected. All of the parts are from the 83. I did not change the front balance weight. Both engines are 12A. I did not remove the pilot bearing.

Vibration felt when transmission is in drive and reverse. Did not change front eccentric shaft balance weight. the transmission and all parts came from a 1983 car. The donor car sat for over five years.
Jan 20, 2012 at 2:36 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Best check the transmission that long-have it pressure tested to find out more what going on with the throttle and governor pressures-start here, also check the engine mounts
Jan 20, 2012 at 4:21 PM
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