BUCKLED ALLOY - Safe to straighten?
BUCKLED ALLOY - Safe to straighten?
Author
Discussion

smiffy52

Original Poster:

16 posts

204 months

Wednesday 28th April 2010
quotequote all
I have a bent rim (ooer missus)
Does any one know; is it safe to straighten an alloy?
I have heard of a Ferrari dealer tool that is used to straighten bent rims back to true.
How safe?
Any one know who can help - South West region.

Thanks in advance.

A

madala

5,063 posts

228 months

Wednesday 28th April 2010
quotequote all
...I suppose it all boils down to how badly it is damaged.....

blade7

11,311 posts

246 months

Wednesday 28th April 2010
quotequote all
There's a clip on youtube showing a machine that can straighten dinged wheels, think the damaged area is heated first and it looks quite effective, I don't know of anyone that has the machine though.

w5pwr

458 posts

220 months

Wednesday 28th April 2010
quotequote all
Take it to an expert and they will soon tell you, I recently did a front GT3 RS wheel on a pot hole and the wheel was not repairable!

Replacement OEM wheel was £1500.

On a performance car, its not worth the risk IMHO...

blade7

11,311 posts

246 months

Wednesday 28th April 2010
quotequote all
w5pwr said:
Take it to an expert and they will soon tell you,
Trouble is there aren't many metallurgists selling wheels, I understand your point though and anything more than a slight ding and I would bin the wheel too.

phib

4,520 posts

289 months

Wednesday 28th April 2010
quotequote all
Had it done on an M sport BMW (19 inch) both front wheels and it was better but not perfect.

The garage said it was perfect but it really wasnt.

In the end the only option was two new wheels.

Phib

willforester

33 posts

210 months

Thursday 29th April 2010
quotequote all
My local indpendent has such a tool. They have a experienced technician that straightens alloys by hand/eye...
A ferrari dealer tool not sure of the name? Friend has a 430 scuderia and frequntly dings wheels on the Devon potholes, swears by them as the wheels are not cheap to replace!

Dinged rims is more common now due to such low profile tyres (unnecessary on most vehicles - below 200bhp/ton, but its for that certain BS look - I guess in a few years time they will revert back to chubby profiles).

Can alloy take being bent back andforth like steel? I am not a metallurgist and I dont have a scanner but I believe alloy either deforms or fractures depending on the mix and nothing inbetween? In other words; if they can true your alloy without fracture it is good to go - safe.
Will

acf69

407 posts

201 months

Thursday 29th April 2010
quotequote all
I am a metallurgist, well to be fair I did a degree in it and then decided my career was doing something different. It will depend on a number of factors, the size and type of damage, the alloy itself etc. If all that is done is to physically straighten the wheel it will be weaker where is was damaged. On low profile tyres and our crappy roads I'd be thinking very carefully about a repaired alloy, especially if its on the front

2skiddy

293 posts

246 months

Friday 30th April 2010
quotequote all
Have to agree with acf69, I only did mech eng to HNC level, so he will know!
However if the wheel is repairable then fine. But, get someone that really knows about wheels, not those that say they do. I have had wheels straightened when I couldn`t get spares when I ran an ex-works Ford RS200E. The wheels were a magnesium/aluminium mix that would bend a little when hit. Yes they were for forest/gravel use and would take serious punishment. I only used them for doing demo runs on tarmac, and they were fine and true. I used Ian Jemison at Bishopthorpe near York. He straightens lots of wheels. I also have a set of wheels on my Z3MC that have been refurbed by Lepsons. They weren`t bent but the finish is excellent. Maybe they could help?

nxi20

786 posts

235 months

Friday 30th April 2010
quotequote all
I have known these guys to perform magic! http://www.aluminium-welding.co.uk/page/alloy_whee...

Redarress

730 posts

237 months

Friday 30th April 2010
quotequote all
To correctly straighten bent road wheels the wheels need softening or annealling before straightening is carried out.The wheel then needs heat treated to increase it's strength .if the wheel is staightened without the annealling the wheel will be stressed and on my opinion not safe to use

Redarress

730 posts

237 months

Friday 30th April 2010
quotequote all
To correctly straighten bent road wheels the wheels need softening or annealling before straightening is carried out.The wheel then needs heat treated to increase it's strength .if the wheel is staightened without the annealling the wheel will be stressed and on my opinion not safe to use

correct

56 posts

206 months

Wednesday 19th September 2012
quotequote all
sorry to bring this topic back up to the top!
i need an 18" M sport alloy wheel repaired, which is originally for a BMW 5 series of the E39 shape.

can anyone recommend a proper repair outfit around hertfordshire.

i dont actually mind travelling around 50 miles out from here, but want someone who knows what they are doing, not a monkey with a mallet and a piece of wood or something alike.

personal recommendations would be good.
i have emailed plenty of companies online, and had absolutely no response so far.

best regards!!! smile

Martian O

2,734 posts

192 months

Wednesday 19th September 2012
quotequote all
Give Chris a call, he uses Lepsons who may be able to repair it for you.

www.exelwheels.co.uk

David Hype

2,296 posts

282 months

Wednesday 19th September 2012
quotequote all
As said by others above, it really depends on the damage.

The ex-Lepsons franchise now Platinum Alloys just off the M4 at Swindon offer a check and report service on all routine wheel refurbishment. If it buckled and they are able straighten it, its only about £10 (+VAT) per wheel. Give them a call direct on 01793 887222.

HTH