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Pulsating noise
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http://www.clubcobra.com/forums/superformance/81109-pulsating-noise.html)
| CBattaglia |
08-02-2007 11:27 AM |
Pulsating noise
My car is 500 miles old, from the start I thought I heard a noise but with the engine babbling it was faint so I ignored it.
Curious, I shut down the engine while on the road to investigate. Sure enough there was a pulsating/rubbing noise comming from what seems to be the drive shaft or possibly the rear. I could also feel it aft of the shifter.
Has anyone had a similar experience?
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I have seen a few installations where the driveshaft was rubbing on the driveshaft hoop. Very few installs have the driveshaft installed dead-straight (side-to side that is) to the rear end, and I believe the straight-shot is not a desirable way to do it anyway. Could you have too much side to side angle in your drivetrain causing a binding? Maybe an out of balance driveshaft? Loose a weight on it? I'f also seen the old style parling brake cables rubbing on tires, axles and driveshafts
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| VintageUpgrades |
08-02-2007 01:43 PM |
I sounds like the parking brake needs adjustment.
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| Kenm4187 |
08-02-2007 02:45 PM |
I found that the flange on the inner axle boot on the passenger side was loose at the diff (allen head screws) with about 450 miles on the car. I tightened them up and have checked them a few times (still tight). I have about 800 miles on the car now.
Good luck,
Ken 2560
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| CBattaglia |
08-10-2007 11:12 AM |
The wheel bearing nut bottomed out on the threads so I was unable to tighten it without a washer/spacer.
Still looking into why.
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| SPF2245 |
08-11-2007 06:40 AM |
I have some driveshaft harmonics at some low speeds and highway speeds in my SPF, it's not too noticable at lower speeds...but around 60-65 becomes more pronounced. I checked all the bolts/angles but have just accepted it as my cars own personality, wish I could say the same about my wifes issues.
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