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TRseks

Acceptable tolerance for wheels

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I am about to refurbish the steel wheels on my TR6, it was a few small dents on the edge of a couple of the wheels which I made good with heat and a hammer. I want to check if the wheels are true before I go any further, I got a dial gauge but no stand so just ordered one.

 

What is the acceptable wobble on a wheel? I would guess that depends on the speed, how bad would a 1mm wobble be?

 

 

Magnus

Edited by TRseks

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I would have thought that any 'wobble' would be taken up by wheel balancing? Unless of course the wheel is totally out of true?

If you take the offending wheels down to your local tyre place & they put them on their machine it will be pretty obvious if they are out?.....................................................I stand to be corrected mind you!

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I saw a Marcos the other day where the rear wheel seemed to be wobbling about half a inch.

The driver seemed happy but I would have tolerated it!

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I struggled with this last year. The car would begin to feel unstable with speeds above 60 miles/hour... Had the wheels balanced two times but the problem stayed. The second time I was there when they balanced the wheels. After putting on a fair amount of weights the machine indicated it was perfect despite the fact that two of the wheels had a wobble of about 5 mm....

 

So not being happy with the car unstable at speed I decided to get some new wheels (minilites)... and the difference is enormous. The ride is much smoother... at every speed

 

I doubt if a wobble of just just 1mm would be noticeable but 5mm is too much in my opinion ..

 

Cheers,

Edwin

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One thing I learnt when I had a lotus élan was the difference between balancing wheels on and off the car. I always had a wobble at speed even when the wheels were balanced off the car. I then heard of a place near silverstone that could balance on the car. The difference was amazing!!

Cheers

Tim

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Tim, I am currently plagued with a severe wheel wobble, usually around 57 to 65 mph. It has been like this since I rebuilt the car, frankly I'm getting desperate and considering having the on the car balancing done, but the nearest place I could find was Bicester! Much further than silverstone. I've done lots of fruitless google searches, do you know who the company near silverstone are? Or indeed does anyone know of another company nearer to me in Essex? Bob.

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Like Edwin, I went through this exercise also when i refurbished my steels (before the accident!)

 

I had it pointed out that wheel wobble (that shaking you get through the car) and the subsequent correction with weights is the wheel + tyre being unbalanced as far as radial weight distribution (think unbalanced washing machine drum)and NOT bent wheels/rims.

If the wheel deviates left to right when looking from behind, then weights etc wont fix this issue, you need to get the wheels straightened..THEN put the tyres on and get it balanced.

As for run out, Id say any more than +/- 5mm is verging on unacceptable.

It would also surely wear tyres out quicker too?

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The chaps I used were.

 

http://vibrationfree.co.uk/

 

I think these are probably the people on Bicester that you mentioned. I guess from me that counts as near silverstone!

Cheers

Tim

Edited by Tim D.

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Thanks for that Tim. Yes they are the people, who I am beginning to think are the only people in the UK who do still balance on the car. Even then this is just a small part of what they do. Bob.

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A point to bear in mind the tyre contributes hugely to whether your wheel is in our out of balance and requires lots or even no weights.

 

I've used Michelins on wire wheels and because of the wire wheel is inherently in balance when a Michelin was fitted no weights were required, conversely when Pirellis were fitted the same wheels (still in balance) needed huge gobs of lead to remove vibration. Mr Michelin makes tyres which are concentric, not all makes do.

 

Mick Richards

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When I got my lotus done these guys said they were the only people in the UK doing this.

I had to say I never found anyone else. The reason I used them on the lotus was that the wheels located on the pegs as they were centre lock and tyre fitters cannot handle this as they use the central hole for location. If you do use these guys mark the wheels for position on the car and orientation on hub

Tim

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