Replacing Rear 2.8i Wheel Bearing

[John042]

Hi, during "Wesley's" SORN period I'm considering replacing a noisy rear wheel bearing. I appreciate that the drive shaft bolts to the disc have to be removed,shock absorber and the A frame to chassis bolts. Would it be advisable to loose the drive shaft nut whilst it is still connected to the car using 3/4" inpact wrench? Then the whole A frame assembly could be slid off the drive shaft? Or is that too easy, not withstanding removing the mounting bolts etc. Any advice on rear bearing replacement would be gratfull. Thankyou. J C.

[pk500]

You don't need to take nuts off from discs if you undo Hub nut it all falls away then unbolt the bottom hub bolts and it comes off

[Number 7]

A 280i wouldn't normally have A frame suspension, it should be trailing arm.

[mrzigazaga]

The early 280i had removable hubs as well, 4 bolts on the back of the hub carrier...You will need somewhere with a press..My old girl took 15ton of the 20 at hand to remove the old bearing...Also be careful and make sure you do not damage the driveshaft splines and cover them with a bag so that no dirt gets on it...

Ziga

[John042]

Thanks all. I should have realised there's only a trailing arm assembly at the rear after fitting new shocks a few months ago. Fortunately I have, at work, access to hydraulic presses so game on.I believe the rear bearings are Granda with an extra oil seal? Cheers J C.

[mrzigazaga]

I believe this is what you want....

I was always told to do the buggers in pairs...So two rears at same time or two fronts...

https://www.google.co.uk/url?sa=t&rct=j&q=...

[John042]

Thanks Mark. Yes pairs are good. I can practise on one and complete the other properly.Originally I thought the noise from the transmission was gearbox, but a second opinion with rotation of the NSR wheel more or less confirmed a "Singing" bearing. J C.

[Wedg1e]

Assuming the wheels have pop-out centres it's usually easier to undo the hub nut with the car on its wheels... you can get someone to hold it on the brakes if necessary.
Not sure why you need a 3/4" drive socket though, a quality half-inch drive with a three foot breaker bar is usually enough.

[John042]

Sorry Ian, HGV workshop ethics aJC

[Wedg1e]

John042 said:

Sorry Ian, HGV workshop ethics aJC

Hell, if you have a big tool to hand you may as well use it to best effect

[John042]

Ian, I guess there's no answer to thatToday I'll have an exploratory investgation with a view to changing both bearings in the coming months. Advice from my HGV gorillas was to crack the hub nuts at work before I SORN then re-tighten before I commence my winter tasks at home. What is the torgue setting for the hub nuts? J C.

[Number 7]

230 lb ft!

[John042]

Thanks Number7. About half an armfull then? J C.

[John042]

Here's some pic's of my rear suspension set up. Not the early type with the 4 x bolts holding the housing. That trailing arm bolt to chassis looks a challenge? The hub nut is about 38mm.





Cheers J C.

[adam quantrill]

Usually the trailing arm centre pin will undo relatively easily.

I usually take off there and the inboard end of the link next to the diff, saves disturbing the bushes around the hub, you just need to pop off the shock absorber.

[marcus1875]

Hi, i've done this job a couple of times on my trailing arm 280i. It's not that difficult.
Loosen the hub nut first then lift the motor, the other nuts came of easily on mine. The worst bit was lining up the bolt at the back thro the suspension when putting it back on. Dont know what its called. I ended up using a jack to lift and adust the height of the drive shaft to line it up.
I have a spare socket for the hub nut if you want it. Watch out if you need a new hub nut, some are metric and others imperial threads.
Let me know if you want the socket.
Marcus

[John042]

Hey Marcus, thanks for the kind offer.I should be OK with the HGV boys at work but many thanks if I get stuck. I measured the nut accross the flats at 38mm. I wondered about the thread being metric or AF. After all it is a TVR! Is it wise to replace the metalastic bushes whilst apart? If so what's the availability? Thanks again for all your help and advice. Yet another reason to keep myTVR

[marcus1875]

Lol. I know what you mean, mines are imp, on one side and metric the other!
I didnt bother replacing the bushes, money needed for beer! They looked fine and have been since i last done it a couple of years ago. Fingers crossed.
Marcus

[John042]

Absolutely correct Marcus. It's people like us who have a morale duty to employees of brewing manufacturers to keep them employed. I guess it will be on condition of the bushes. At the moment everything seems secure. J C