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Took Percy for his MOT yesterday. He passed with one advisory - slight play in both rear hubs.

 

I have no idea what would cause play in my rear hubs but was wondering if this is something that might be easy to address? I've had a look through the Brown book and a Haynes manual but can't see any obvious references.

 

Steve

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Generally if they have play in them it will get worse over time and eventually need replacing. Its a bit of a rats nest this as quite a few have had rebuilt hubs that havent been much better than their old ones. Dont think thers anything you can do to fix as it needs a 20 ton press and even then most say it needs an expert to do. They arent too difficult to replace and you need to be careful that you dont strip the ally housing in the trailing arm. Have a search on here as thers plenty of info about issues, replacing and not very good reconditioned ones. You can buy uprated hubs etc from the usunal suspects but that not a cheap option. It may not be obvious but you dont want them failing as you can lose a wheel in the process so I'd be researching where to get decent replacements sooner rather than later.

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Hi Steve,

the hubs do eventually wear out. Some posters have reported to say they have tweaked the big nut on the back of the hub (one tightens, the other locks)

but this is contrary to the workshop manual - you only have one go at tightening and that is during a rebuild.

 

Various garages can press the old bearing out for you (Engunuity in London is one).

 

Replacement hubs can be obtained - TRshop do some good ones at a fair price.

 

As Robin says - becareful of the trailing arm when tightening the hub nuts. If the studs pull out or the toruqe loading can't be achieved then fit Helicoils.

 

Regarding the play - make sure it is the hub bearings and not loose hub nuts or wheel nuts etc.

 

Roger

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Regarding the play - make sure it is the hub bearings and not loose hub nuts or wheel nuts etc.

 

Roger

 

Thanks for the feedback chaps.

 

I will check the hub nuts & wheel nuts as well as researching replacements.

 

I have noticed an occasional knocking sound from the area of the offside rear wheel when going over bumps.......I'm now wondering if something is more loose than the MOT picked up?!?

 

Steve

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Thanks for the feedback chaps.

 

I have noticed an occasional knocking sound from the area of the offside rear wheel when going over bumps.......I'm now wondering if something is more loose than the MOT picked up?!?

 

Steve

Hi Steve

I had a similar knocking noise, have a look at the thread that I started. http://www.tr-register.co.uk/forums/index.php?/topic/52581-diff-bushes/

Not sure if it's cured the knocking noise yet though.

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You can test the rear hubs, quite easily.

 

Raise the TR6 rear wheels off the Earth. A few inches is enough.

Grasp the tire at opposite sides (9 o'clock & 3 o'clock, for example).

Try to shake the tire, or rock it back & forth.

If there is any movement, you better get new hubs pronto.

 

Loosing a rear wheel at speed can spoil your day.

Edited by Sapphire72
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Be careful who you get to change the hub bearing.

Ideally a Triumph specialist (they are the same on the Stags and 2000/2500s) who do it themselves. There is a knack and if you don't know it and use brute force the stub axle can be terminally weakened.

 

The risk of an exchange unit is that it will have been sent off and had the old bearing pressed out by a YTS using a huge press.

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Hi Steve

I had a similar knocking noise, have a look at the thread that I started. http://www.tr-register.co.uk/forums/index.php?/topic/52581-diff-bushes/

Not sure if it's cured the knocking noise yet though.

 

Kevo - I am under the impression that the bushes are all poly....but wouldn't swear by it.

 

I guess its time to have a wee play and looksee.

 

Steve

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Well, the only thing worse than a problem is a problem you can't identify.

 

Checked the wheel nuts this morning - all good and tight. So, jacked it up and wiggled the wheels. No apparent movement unless I wiggle them so hard the whole car shakes.

 

Took the wheels off. Hub nuts seem fine and a visual inspection round about revealed nothing more than a worn rubber bush on the offside rear damper link.

 

No further forward. I guess the next step is to go back to the guy who did the MOT and quiz him about how he came to the conclusion there is slight play in the rear hubs and see if that helps.

 

I mentioned noises coming from the rear quarter yesterday. Having read a few other posts I thought I should say that the noises I hear are not squeals or squeaks of a bearing nature but occasional clunks - only heard when going at low speed over bumps/potholes. It sounds as if something solid is bashing into something else solid but everything down below seems to be secure. I'm wondering if it may be the jack or tools bouncing in the boot - sounds a bit far fetched, I know, but I will empty the boot and see if it goes away.

 

Steve

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  • 3 months later...

Hi all,

 

After rooting around for possible causes to this, I am not much further forward.

 

The sound sounds as if its coming from the area around the bottom rear end of the drivers door. Its only noticeable at low speeds when going over potholes (its probably there at higher speeds too but masked by other noises). The nearest bit of moving structure I can identify is the rear trailing arm. Could it be worn bushes? Is that a place to start?

 

Any suggestions would be gratefully received!

 

Steve

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Hi Steve,

before my MOT this year (August) I thought I could feel a slight play in the rear offside hub.

Spun the wheel and it was OK. The MOT man also thought he could feel play (no input from me) - advisory issued.

 

When I got home I gave it a TRy and nothing was noted - no play no noise.

 

However occasionally I am aware of a noise - slight rumble, may be not. Recheck for play - nothing.

 

My conclusion is that the hub is on its way out. As the hubs are apprx 50 years old I am going to change both for NEW items.

Dodgy bearings I can live with but snapping stub axles is another thing.

 

Roger

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Back in 2004 I had a rythmic clunk which happened only at about 40mph from the nearside rear. I had changed to telescopics with CTM brackets and had changed all the UJ's

 

At Malvern I jacked the wheel up and could feel no play or anything else. After the horror stories of stub axles breaking I managed to get a good recon hub from a RedRose member. Back home after a worried drive, i took the hub off. Turning it the feeling was like the bearing was a threepenny bit so I suggest getting it off to really feel if its ok

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Steve,

 

I had a low speed knock when going over rough surfaces and, like you, spent ages checking and tightening every nut and bolt I could find. In the end, adjusting the driver's door striker plate fixed it!

 

A bit simplistic, I know, but occasionally the solution doesn't need an arm and a leg spent on it (though it usually does, as I know to my cost!)

 

Good luck with it,

 

John

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Definitely inspect tubular shock mounts. Mine gave me repeated trouble this year until I fitted longer bolts and a nylock. Other possibility is that the rear chassis mounts have come adrift. Mine loosened when the new chassis settled and I got a nice clunk

Tim

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