Russ
Part of things
Posts: 372
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Feb 25, 2013 22:10:00 GMT
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I'm trying to find the cause of a noise but have been unsuccessful so far The noise, to me, sounds like a wheel bearing. Its a constant 'whur-whur-whur' sound, the pitch changes with speed (gets higher when going faster, lower when slowing down) and it gets louder when going around right hand bends. The noise is still there whether your accelerating or de-accelerating and if you depress the clutch pedal. This indicated to me it was the passenger side front wheel bearing at fault. I've replaced the passenger side front and back wheel bearings and the noise it still there. I read it could be the tyre/wheels causing the noise, but changing to another set of wheel made no difference. I've checked for anything that might be rubbing/catching on anything but theres nothing either. So now i've run out of ideas. Something i wondered if it was coincidence or not. The noise only came about after the car was sitting for about 2 weeks. Beforehand i'm 99% sure there was no noise. Car is a MK3 astra tds if that makes any difference. Thanks
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Bufort
Part of things
Posts: 66
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Feb 26, 2013 12:39:05 GMT
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could be the driver side wheel bearings
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'06 Buell XB9 Lightning
'86 Ford Capri
and a billion other bikes covering all disciplines.
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Russ
Part of things
Posts: 372
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Feb 26, 2013 18:41:06 GMT
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It did cross my mind. Although because the noise was getting louder on right turns, i thought it would be the left side, as the load was shifting to that side.
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Feb 26, 2013 19:22:13 GMT
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You might find that the play in the wheel bearing means it makes more noise when unloaded? Jack it up, spin the wheels and have a listen.
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Russ
Part of things
Posts: 372
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Feb 26, 2013 19:52:19 GMT
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Ok, something to check tomorrow.
Don't suppose a cv joint would make similar noises if it worn/dry?
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Feb 26, 2013 20:02:41 GMT
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Made sure the brake pads are ok? Ive had a pin come loose once, Let the antirattle plate spin round and grind on the edge of the disc, As the very lip of the disc isnt perfect it created a whurring sound.
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Feb 26, 2013 20:27:16 GMT
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CV joint would click only on full lock. Right turn clicking would mean left hand CV joint. Constant thumping like a helicopter flying over head is wheel bearing. I drove for about 1000 miles on a dodgy wheel bearing, but wouldn't recommend because if it goes, your wheel will come loose at the hub. It's cheaper to buy a whole strut from a breakers yard, TDS will have big hub which means anything off a 1.6+ engine size Astra/Cavalier (different size hubs/driveshaft). They're easy to change, take the three bolts off the top mount, undo the 32mm hub nut (put a screwdriver in the vented disc to stop disc rotating), remove the castelated nut and the split pin, remove the ARB bolt and lift it out.
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Feb 26, 2013 23:34:42 GMT
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I changed both bearings on the near side of a polo , as the noise was worse on right corners (putting more weight on the left) to my surprise it turned out to be the front right that was the cause, so it's not always that obvious.
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Yeah, in my experience knackered wheel bearings get quieter when they're loaded/louder when unloaded. I'd be guessing it's a drivers side wheel bearing.
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Russ
Part of things
Posts: 372
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I'm convinced its the front drivers side thats the problem too, 3rd time lucky hopefully...
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bortaf
Posted a lot
Posts: 4,549
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Feb 27, 2013 13:18:48 GMT
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Had this recently a few times, once it was the rear bearing sounding exactly like the front (same side just differant end of the car) other 2 times it was the diff (FWD obv) in all 3 cases it sounded 100% like the front left bearing was noisy but only on right hand turns and at any speed, the other 8 times it was indeed the outside front bearing (outside of the turn it was noisy at).
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R.I.P photobucket
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Ryannn
Posted a lot
Posts: 2,421
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NoiseRyannn
@blackbelt1990
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Feb 27, 2013 21:39:33 GMT
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My Golf had a bearing type noise, but the causes could have been front top mounts, rear trailing arm bushes or just worn tyres. I never got to the bottom of it but thats what the forums suggested.
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