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Registered
Join Date: Jul 2021
Posts: 2
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Knocking noise in reverse
Just developed a knocking noise in reverse only in my '84 Carrera. The noise slows down or increases with with the speed of my reverse. Coincidence , maybe, but noticed my odometer only has stopped working as well . Probably two
separate issues but thought I'd mention it. On occasion, the noise seems to go away. Any idea's on where to start looking? |
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10-07-2023, 07:18 PM
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Registered
Join Date: Jan 2011
Location: Phoenix, AZ
Posts: 113
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Maybe CV joints.
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10-07-2023, 07:53 PM
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Couple of possible causes: CV joints, something loose in the parking brake assembly, maybe a bearing, hopefully not a worn ring/pinion interface...
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10-08-2023, 06:03 AM
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Join Date: Jul 2021
Posts: 2
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Thank you both. I seem to agree with both. Probably will replace entire axle. 101,000 mi.
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10-08-2023, 10:55 AM
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I had that happen to an 72 Audi 100 (fwd) CV axle bearing cage cracked, but the rattle clunk was consistent.
For what it’s worth, if you have an old cellphone, glue some strong neodymium magnets to the phone case and you have a DYI Go-Pro to attach to the underside, you might be able to record a video to review when doing any one-man exploration and inspections of hard to reach places. |
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10-08-2023, 03:32 PM
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PCA Member since 1988
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If the CV joint boots are not split and leaking, the CV joint probably is still good. They last a looooong time if they don't get dirt inside.
__________________
1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! |
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10-08-2023, 03:39 PM
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