Wheel Bearing noise while under load in a turn/transition
08-11-2016, 04:52 PM
#1
Wheel Bearing noise while under load in a turn/transition
Car started developing this wheel bearing noise while it's turning/under transition. Especially in mid-high speed corners. "Thud thud thud thud thud"
Checked all the wheel hubs and bearings they were all solid.
Brought to my mechanic and it was first diagnosed as a bad drive shaft, got a driveshaft from Mazmart when Paul said it might've been a misdiagnose, turns out he was right. It wasn't the drive shaft.
Now they drained the diff oil and there were metal flakes in it, but not significant enough as being a bad diff.
They are now removing the axle and disasemble it to see if there's uneven wear inside the cups.
The car sees a couple of track days a year, especially last year... (16 days of harsh Sebring concrete/asphalt)
Has anyone heard of anything like this? Thoughts?
Much appreciated.
Checked all the wheel hubs and bearings they were all solid.
Brought to my mechanic and it was first diagnosed as a bad drive shaft, got a driveshaft from Mazmart when Paul said it might've been a misdiagnose, turns out he was right. It wasn't the drive shaft.
Now they drained the diff oil and there were metal flakes in it, but not significant enough as being a bad diff.
They are now removing the axle and disasemble it to see if there's uneven wear inside the cups.
The car sees a couple of track days a year, especially last year... (16 days of harsh Sebring concrete/asphalt)
Has anyone heard of anything like this? Thoughts?
Much appreciated.
08-11-2016, 05:10 PM
#2
SARX Legend
iTrader: (46)
There are a lot of things at play, it will just take a qualified individual to diagnose it properly. Are you aware if they are properly aligning the PPF or not? Most shops just slap it all together and eye ball it. I was having a similar issue after I installed the S2 trans and after following the procedure in the manual for aligning the PPF, my sound went away.
08-11-2016, 05:14 PM
#3
The shop owners are SCCA regional champs & nationals podium getters, and they build their own cars, so I have doubt in their qualification. The thing is the noise was there before the driveshaft swap, it just didn't fix anything. The U-Joints on the old one was bad or so I was told. Didn't really matter since the "new" one only cost $160 shipped.
The main issue now is that they can't replicate the noise on the lift, whilst on the road it's pretty easily replicated.
And 9k, I haven't seen your car for a while, new wheels looks sexy!
The main issue now is that they can't replicate the noise on the lift, whilst on the road it's pretty easily replicated.
And 9k, I haven't seen your car for a while, new wheels looks sexy!
08-11-2016, 05:26 PM
#4
SARX Legend
iTrader: (46)
Thanks man but I have had them for a few years so it really has been a while, 
Have they checked the bolts and such on the subframe? Gas tank moving around? Man it could be so many things. Setup some go pros.
Have they checked the bolts and such on the subframe? Gas tank moving around? Man it could be so many things. Setup some go pros.
08-11-2016, 09:51 PM
#5
These are the new VR1 that I put on not too long ago. 2 track days. Daytona Road Course & PBIR. I'll have them inspect that tmr.
Loving the Ignition kit on track btw Charles.
Last edited by dezau; 08-11-2016 at 09:55 PM.
08-12-2016, 10:45 AM
#7
1% evil, 99% hot gas.
iTrader: (21)
Same problem, same symptoms. Violent vibration at-speed, couldn't feel it through the wheel, couldn't localize it. Chased my tail for months. Replaced a bunch of parts.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the car off the ground and spun each wheel like a madman by hand. Finally felt/heard the left front rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the car off the ground and spun each wheel like a madman by hand. Finally felt/heard the left front rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
08-12-2016, 10:47 AM
#8
///// Upscale Zoom-Zoom
Same problem, same symptoms. Violent vibration at-speed, couldn't feel it through the wheel, couldn't localize it. Chased my tail for months. Replaced a bunch of parts.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the wheel off the ground and spun it like a madman by hand. Finally felt it rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the wheel off the ground and spun it like a madman by hand. Finally felt it rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
08-12-2016, 04:33 PM
#9
From a daily update...
Last edited by dezau; 08-12-2016 at 04:37 PM.
08-22-2016, 05:37 PM
#11
Same problem, same symptoms. Violent vibration at-speed, couldn't feel it through the wheel, couldn't localize it. Chased my tail for months. Replaced a bunch of parts.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the car off the ground and spun each wheel like a madman by hand. Finally felt/heard the left front rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
It was the left front hub bearing.
There was no play and no noise when on a lift and spinning/pushing/pulling the wheel by hand. I tried multiple times.
I finally figured it out by going for a drive to warm it up, then got the car off the ground and spun each wheel like a madman by hand. Finally felt/heard the left front rumbling. I mean you have to spin it fast. Still no play and no noise or rumbling turning it slowly by hand.
$150 for a new hub from MAZDASPEED Motorsports, problem is gone.
08-22-2016, 07:49 PM
#12
1% evil, 99% hot gas.
iTrader: (21)
I don't think that's true. My RX-8 has thousands and thousands of track miles, some on Hoosiers, on top of 70k+ street miles. The hub failure is the first significant mechanical problem I've had.
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