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After fitting the brake cooling hose adapters from Lindsey I have developed a sound from what seems to be the left front wheel. The noise is a best described as whining and it is accompanied by a sligth buzz in the steering wheel. Sharp right turn makes it worse, sharp left makes it go away. It is speed related and has nothing to do with engine rpm.
Since fitting the adapters involved removing the hubs I naturally assumed that I had f**ked up and hence I checked and reset the play in the wheel bearing on the left front wheel as per the manual, thinking that I had set it to tight. It didn't help. When turning the hub with rotor off there is nothing to indicate something is amiss.
Today I took both hubs off again, gave 'em a good cleaning, checked them thoroughly and applied new grease (the expensive kind). I also lifted the rear up to check if I have a problem in the rear that could cause this but everything is turning nice and smooth.
I have yet to test drive the car after my last fix but I somehow doubt that I have fixed the problem. Any ideas of what could be the cause of this?
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
(This post was last modified: 09-14-2009, 02:10 PM by
firefish.)
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<!--quoteo(post=80038:date=Sep 14 2009, 07:48 PM:name=flash)-->QUOTE (flash @ Sep 14 2009, 07:48 PM)
<{POST_SNAPBACK}><!--quotec-->sounds like maybe tire flex under load is causing something to rub<!--QuoteEnd--><!--QuoteEEnd-->
No sign of any rub that I can find. It sounds as a bad bearing but I cannot see anything wrong with them, could they go bad and make noise but still look good and spin freely and feel ok? I'd rather not just throw parts at the car without knowing what the problem is.
When I took the hubs off the first time I dropped the outer bearing on the floor, can't remember which side. It was coated in greased and the floor was clean so I didn't think much of it but maybe one of the rollers is out of round from the impact?
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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I doesn't take much turn to increase the noise, it's more about transferring the load. I had them apart and cleaned them spotless and used new grease - no change. I guess that it is bad and that I have to replace it.
The hose is OEM and it sits where it is supposed to and shows no sign of contact with tire.
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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I haven't put the hose for the cooling in yet, only the bracket (I'm kinda slow).
Anyway, I fitted the S4 brakes the other day and after removing the old rotor and caliper I spun the hub - CRUNCH! - and the source of the previously whining but now grinding noise has been identified. I have ordered a new set of bearings and I'll remove the hub today and inspect the mess.
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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Bearings fitted and problem SOLVED!
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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will work for food [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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