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

Vibration

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Old Mar 29, 2005 | 02:18 PM
  #1  
DrifterRX's Avatar
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Tenured Member 05 Years
 
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From: Rapid City SD
Vibration

Ok so I have my car back together and I put in the "stiffer" engine mounts from RX7.com and replaced the tranny x member bushings with the Banzia Racing poly ones. I noticed that from 2500-3000 rpms that I'm getting a vibration, is this normal? Should I start looking for a problem. I'm also seeing about 18psi oil pressure at 600rmp.
Little info
Rotary Aviation apex seal
New bearings
Act HD PP with 6 puck disc
Atkins thremal pellet
Street port
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Old Mar 29, 2005 | 02:33 PM
  #2  
ddub's Avatar
i am legendary
Tenured Member 05 Years
 
Joined: Sep 2003
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From: Kirkland, WA
For the vibration, I don't know about those mounts specifically but my completely solid aluminum mounts cause noticeable vibration and it gets excessive at about 55mph and up. Take that for what its worth.
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Old Mar 29, 2005 | 03:18 PM
  #3  
SureShot's Avatar
Seduced by the DARK SIDE
Tenured Member 15 Years
 
Joined: Apr 2001
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From: Orange Park FL (near Jax)
Next time you get a chance to look underneath, check the U-joints.
They should look solid black.
If you see any brown or rust colored deposits on the U-joints, they are failing.
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