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I get a grinding at times that seem to only be in second gear, low rpms and right hand turns. I am really stumped. The grinding seems to be coming from the right rear wheel. It doesn't always happen with every turn I described but when it does it goes like this: I'll slow down in second gear, rpms about 1500, turn in and as soon as I push on the throttle I get a grinding sound. It is LOUD. It is louder under acceleration but goes away after I speed up or lift my foot off the throttle. Again, the sound does seem to be coming from the wheel not the tranny.
I was figuring it is either a wheel bearing, CV or a dreaded tranny/differential problem. Tranny/differential: doesn't sound like it is from the tranny but it only seems to be 2nd gear. I don't take turns like this in third and I am going to fast to downshift into first so I don't really know if it actually happens in other gears. CV's: My CVs are new and I have had CVs go out before and it usually sounds more like a clicking sound than a grinding sound. Bearings: I know bearings grind when under acceleration while turning if a race is worn. I have also heard I could maybe just tighten down the big ass nut on the outside of the hub. Advice? Suggestions? Road tests?
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(1) '77 Chassis and '79 SC 3.0 project car (1) '79 911SC 3.0 Widebody SC (1) '15 Ford F-150 4x4 3.5TT Toluca Lake, CA Last edited by Packy; 05-13-2011 at 02:53 PM.. |
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Join Date: Mar 2002
Location: longbeach
Posts: 925
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is it lsd ? I had some plates break in my lsd and it was a horrendous grinding in turns.S
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no, open diff. I wish it was a LSD.
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(1) '77 Chassis and '79 SC 3.0 project car (1) '79 911SC 3.0 Widebody SC (1) '15 Ford F-150 4x4 3.5TT Toluca Lake, CA |
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Bump. Nobody?
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(1) '77 Chassis and '79 SC 3.0 project car (1) '79 911SC 3.0 Widebody SC (1) '15 Ford F-150 4x4 3.5TT Toluca Lake, CA |
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Call me; its faster than a long protracted series of posts
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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Will do Steve. I'll try to give you a call this afternoon.
Thanks,
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(1) '77 Chassis and '79 SC 3.0 project car (1) '79 911SC 3.0 Widebody SC (1) '15 Ford F-150 4x4 3.5TT Toluca Lake, CA |
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I talked with Steve at Rennsport who told me to jack up the car and use a stethoscope to listen to the difference in the wheel bearings and the transmission. So I did and it was very obvious that it wasn't a transmission carrier bearing. It wasn't a right wheel bearing. It is the RIGHT wheel bearing. So I have that going for me. At least my labor is cheap. A tranny rebuild would have sucked.
Anyhow, thanks Steve. I appreciate the advice.
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(1) '77 Chassis and '79 SC 3.0 project car (1) '79 911SC 3.0 Widebody SC (1) '15 Ford F-150 4x4 3.5TT Toluca Lake, CA |
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Somatic Negative Optimist
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![]() Quote:
?????????? ![]() Is it the right wheel bearing? If so, consider doing both. Rear Wheel Bearing Removal
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats. ![]() Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". ![]() |
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grinding , rear wheel bearing , transmission. |