highlander Posted September 16, 2009 Share Posted September 16, 2009 I have a noise which I localize to the right front of the car. I hear it when making a hard left turn into the parking lot at work (near full lock). The noise also comes in at about 50MPH. It sounds like a tire rub (buzzing quality). Can hear it in the straights, as well as left hand turns. It diminishes in right hand turns. I can feel a vibration that coincides with the noise in all pedals, and the dead pedal. It is present under acceleration, deceleration, and constant speed. It is present with the clutch engaged and disengaged (coasting). So I know it is associated with driveline after the clutch. I know it is not related to engine speed. I can reproduce it in 3rd, 4th, or 5th gear. It does not change with application of brakes until speed drops below 50MPH (that i can recall). There is no evidence of tire rub (rubber debris, unusual tire wear, etc.) Related mods: ACT LWFW ACT clutch Enkei 17x7.5" wheels +50 offset Falken tires Progress springs & sways Kartboy endlinks SubySports Aluminum undertray/rock guard. Dealer worked on it and found a bearing bad in tranny (which was growling louder than this noise, but is now gone). Any clues? Thoughts? Wheels bearings 'tested' ok at dealer, but was my first thought. Calipers dragging? No irregular pad wear, rotors all equal. CV/half shaft bad? - all boots intact. Thanks. Todd Vir Est Fatum Ut Perficio Concepta Suus Progenies. - Man is destined to fulfill the capacity of his lineage (i.e. Darwinism) Link to comment Share on other sites More sharing options...
highlander Posted September 17, 2009 Author Share Posted September 17, 2009 10 lookers, but no thoughts huh? BTT Vir Est Fatum Ut Perficio Concepta Suus Progenies. - Man is destined to fulfill the capacity of his lineage (i.e. Darwinism) Link to comment Share on other sites More sharing options...
05LGT-Hank Posted September 17, 2009 Share Posted September 17, 2009 Wheel out of balance? CV contaminated with road junk? Link to comment Share on other sites More sharing options...
schwinn Posted September 17, 2009 Share Posted September 17, 2009 How do they "test" wheel bearings? What's "ok" according to the dealer may not be ok at speed or under harder-driving conditions? Link to comment Share on other sites More sharing options...
highlander Posted September 18, 2009 Author Share Posted September 18, 2009 Wheel balance wouldn't go away when turning right vs present when turning left. Testing WB can either be physically trying to push them out of alignment (old method) or listening to them while turning (physically or electronically listening that is). Still betting on RF WB being bad. Thanks though for the consideration. Vir Est Fatum Ut Perficio Concepta Suus Progenies. - Man is destined to fulfill the capacity of his lineage (i.e. Darwinism) Link to comment Share on other sites More sharing options...
highlander Posted September 21, 2009 Author Share Posted September 21, 2009 BTT. Still trying to figure this out. Vir Est Fatum Ut Perficio Concepta Suus Progenies. - Man is destined to fulfill the capacity of his lineage (i.e. Darwinism) Link to comment Share on other sites More sharing options...
schwinn Posted September 21, 2009 Share Posted September 21, 2009 Aren't wheel bearings cheap? I'd say just replace it and see if it goes away? No sense in "testing" it... especially since (as you can tell) I doubt the validity of such tests. Link to comment Share on other sites More sharing options...
Underdog Posted September 21, 2009 Share Posted September 21, 2009 The test per the manual is to use a dial indicator and measure the axial play of the bearing by indicating to the edge of the rotor and push/pulling it at the top and bottom. I think the allowable limit is something like 2 or 3 thousandths of an inch. The Crimson Dynamo Link to comment Share on other sites More sharing options...
highlander Posted September 23, 2009 Author Share Posted September 23, 2009 The test per the manual is to use a dial indicator and measure the axial play of the bearing by indicating to the edge of the rotor and push/pulling it at the top and bottom. I think the allowable limit is something like 2 or 3 thousandths of an inch. Who would bet that the 'dial indicator' in most shops is "Hey Earl, does this feel loose to you? Heads back to shop next week. Vir Est Fatum Ut Perficio Concepta Suus Progenies. - Man is destined to fulfill the capacity of his lineage (i.e. Darwinism) Link to comment Share on other sites More sharing options...
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