1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Rear end noise-still having a problem

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Old Jun 12, 2005 | 11:49 PM
  #1  
jrs10's Avatar
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From: San Diego
Rear end noise-still having a problem

I have a 1980 RX7 that I purchased with a GSL-SE third member and GSL axles/brakes.

There is a passenger side rear end noise, kind of a "woop woop woop woop woop" noise, as I gain speed it gets faster but not noisier. It happens on both acceleration and deceleration, seems louder at lower speeds and on left turns. If i touch the brakes or the parking brake, it goes away until the brake is released.

I have had the brakes apart many times, it happened with the old pads, and with the new pads. I pressed on new wheel bearings TODAY and am still having the problem. The driver side caliper is new, the passenger caliper (the side that the sound comes from) is not, I have been able to screw in the parking brake on the caliper, but it definitely takes effort. I plan on replacing that caliper, but don't have the funds yet...

From my description, does anyone have any ideas of what it may be?
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Old Jun 12, 2005 | 11:55 PM
  #2  
trochoid's Avatar
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From: St Joe MO
Check your brake rotors for runout.
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Old Jun 13, 2005 | 02:04 AM
  #3  
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From: Grand Rapids Michigan
Yeah, sounds like a warped disc...
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Old Jun 13, 2005 | 02:11 AM
  #4  
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From: austin TX
Well, hopefully its not what happened to me... I thought my bearings were going out, turned out it was a bent axle, which was pushing the caliper down and making the noise. Took me 4 weeks to find someone willing to part with an axle.
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Old Jun 13, 2005 | 03:25 PM
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kuhlrx7's Avatar
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From: florida
guess; bent rim,bad tire,bad brake rotor,bent axle,exhuast rubing, wide tire rubbing. that should be good to start.
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