Over the last couple of weeks, one of my tyres has been losing pressure, 10psi every other day, i kept pumping the tyre up, but decided to remove the wheel to investigate.

Firstly the damage caused by driving a on a wheel with less than 20psi in.

Put a screwdriver in tear to show the depth.

 

This is the cause of the air loss,

 

This is on the inside rim of the wheel, does anyone know if this can be fixed, ive got a mate who welds for a living.

 

Just as a warning, keep a check on your tyre pressures, because this could have shredded itself, dont want to think about what would of happend at speed.

Stu

i think that is fooked mate, i would never trust a wheel like that

Stu, as long as he has access to some TIG welding equipment should not be a problem.

 

Paul

thought it was tyre not wheel,

 

Cheers John

Edited February 22, 200916 yr by john300zx
didnt read post

ive had a wheel do the same thing in the past i had it welded. the only prob was that when he started welding it the heat made the wheel crack even more so the weld was twice as long as the origional split. but it can be done.

Before you start welding find the end of the crack, drill a small hole there 3mm should do and it will stop the crack speading.

 

Paul

Do you really want to repair a tyre like that on a car that can do 150+MPH?

The tyres had it but the wheel should be an easy repair.

Personally i would dump that rim as well i would not even trust it if it was welded together it may split some where eles. A car that travels this fast you need good tyres etc.

It's a quality forged rim that one so should be no problem at all to repair. Wouldn't do it to cast wheels though.

the repair will only be as good as the welder!

the repair will only be as good as the welder!

 

True gaz, the tyre is shagged, but my pal Sean is one of the best welders i know of, he builds race car chassis for the guys at the local racetrack, plus does a bit of stainless pressure tank welding.

He really knows his stuff, but the wheels are far too rare to try and locate a spare, ive got to give it a try.

if the welders as good as you say, go for it.

If not, there's bound to be a local fabrication company who will weld it for you.

TIG welding is a pretty common procedure nowadays.

True gaz, the tyre is shagged, but my pal Sean is one of the best welders i know of, he builds race car chassis for the guys at the local racetrack, plus does a bit of stainless pressure tank welding.

He really knows his stuff, but the wheels are far too rare to try and locate a spare, ive got to give it a try.

if done right it will be as strong if not stronger then the original.

 

but ditch the tyre its fubar!

Before you start welding find the end of the crack, drill a small hole there 3mm should do and it will stop the crack speading.

 

Paul

 

That's a critical and very good piece of advice there.

 

Stu, you must make sure your mate drills the hole otherwise the crack will keep going.

That's a critical and very good piece of advice there.

 

Stu, you must make sure your mate drills the hole otherwise the crack will keep going.

 

i had always thought that was only relevant to cast iron cracks!

i had always thought that was only relevant to cast iron cracks!

 

Nooo it applies to any material. The reason behind it is where the material is cracked, all the force is directed at the crack (a very small surface area) thus driving it deeper and deeper.

 

If you now drill a hole at the root of this crack it will spread the stress forces around the inside of the hole to a greater surface area.

 

The material can now withstand this load because it's distributed 'better'.

 

My dad used to do it on his old British bikes for example, they had loads of vibration and used to crack his aluminium mudguards untill he drilled a hole at the root of the crack to stop it.

 

HTH :duffer: