Rear Wheel Bearing?

[Philr32]

Hey so I think my rear wheel bearing is gone, it was making the usual wheel bearing noise, it would squeak like something needed grease particularly when going around a corner, the wheel had heaps of camber, with the wheel off the brake disc wobbles back and forth when you push the bottom and the big nut that's circled in red in the pic was loose. I've tightened the large nut and also made sure the wheel is nice and tight, this tool away a lot of the camber and also the squeaking, wheel bearing noise still there but no where near as loud and the brake disc still wobbles a tiny bit with the wheel off but once again not as much as before. Am I correct in assuming it's the wheel bearing? The problem is on the rear of it makes any difference.

[Lakes101]

The disk will wobble with out the nuts on the hold the disk down! Did you try with the nuts on? Best also to try with the wheel on and just jacked up to bring the wheel off the ground and push back and forth on the top and bottom to see if there is any movement

[Philr32]

Hmmm, the other side the disc didn't wobble at all but yea. I did try with the wheel on, it wobbled until I tightened everything up, now it doesn't wobble

[MrStabby]

FWIW i had to replace both rear wheel bearings on mine. One was shot and the other was on its way.

The rotors are probably rusted on to the hubs. I reckon you'd notice if it was just the rotor wobbling on the hub rather than a wobbly bearing.

[KiwiRS4T]

Its very unusual for the main hub nut to be loose - they are tightened to some monstrous torque number and usually very hard to get off so I would say your problem was the loose nut. However being loose may have damaged the bearing.

[Philr32]

You can probably tell but I'm a bit clueless in that area. I thought that possibly the wheel bearing being worn may have allowed the nut to come loose? That's probably impossibly, I have no idea with wheel bearings. The main hub nut was literally finger tight when I took the wheel off, I was undoing it by hand til it hit the usual surface rust and dirt. What size is the main hub nut in an M35, 30mm, 32mm? I used a shifter to semi-tighten it (don't shoot me, I hate shifters but don't have the ginormous socket the right size).

[Lakes101]

Hi phill if your in the Sydney area I have a socket to fit the hub nut! Your welcome to come use it.

[Duncan]

see the problem is that nut has to be undone to repair a split cv boot so it is very possible it has been off.

If it is not done up it is very likely to damage the wheel bearing because it helps hold the hub in the right place. I've had exactly that happen to my race car when a shop didnt do up that nut after changing the CVs the night before an event.

Best thing you can do is do it up as tight as you can, drive to a workshop you trust and get them to check it out. there are a few specialist tools and steps in doing a wheel bearing so you are better letting someone who knows what they are looking at check it out

[Philr32]

Hi phill if your in the Sydney area I have a socket to fit the hub nut! Your welcome to come use it.

Thanks! I may end up taking you up on that.

[Philr32]

see the problem is that nut has to be undone to repair a split cv boot so it is very possible it has been off.

If it is not done up it is very likely to damage the wheel bearing because it helps hold the hub in the right place. I've had exactly that happen to my race car when a shop didnt do up that nut after changing the CVs the night before an event.

Best thing you can do is do it up as tight as you can, drive to a workshop you trust and get them to check it out. there are a few specialist tools and steps in doing a wheel bearing so you are better letting someone who knows what they are looking at check it out

Cheers, that was somewhat along the lines of what I was thinking. How tight are we talking here, whip out the rattle gun tight?

[Lakes101]

Sure mate ill be here till 1:30 text me on 0452449126

[Duncan]

32 gtr is 204-275NM. ie twice as tight as a wheel nut and half as tight as a harmonic balancer bolt.

[MrStabby]

32 gtr is 204-275NM. ie twice as tight as a wheel nut and half as tight as a harmonic balancer bolt.

I wonder how much torque it takes to get off after 20 years.. I was about 90kg when i tried to do mine, with a pipe on the end of the breaker bar the lever would have been about a meter, so lets say around 900Nm static. Maybe double that to 1800 because i was jumping on it, but the good half inch drive breaker bar gave up at that point. Got a shop to do the Stag....

[joshm35]

The disk will wobble with out the nuts on the hold the disk down! Did you try with the nuts on? Best also to try with the wheel on and just jacked up to bring the wheel off the ground and push back and forth on the top and bottom to see if there is any movement

Disk is not held on by that nut only hub

[Lakes101]

Disk is not held on by that nut only hub

I was referring to the rotor not being bolted down by the lug nuts. As wobbling the rotor with out the nuts on its not attached to the hub to see if there is any bearing movement.

[Philr32]

Thanks for all the help everyone. Got the bolt tightened, will keep an eye on the situation and see how we go

[joshm35]

Ahhhhh comment withdrawn