Repairing Front Tractor Rim

[Laggard]

Where in country are you?
Your previous posts say your 7840 has a loader on.
Fresh rim would be £100.
Cheap.

Where can you get rims from please? Got New Holland rims that have lost paint on outside and corroded on the inside due to ballasting.

 

[Ffermer Bach]

I recently bought the farm & it hasnt been farmed in years so just trying to tidy the brambles & managed to just clip a cut down tree trunk hidden in the brambles.

bit of an understatement!

 

[Nearly]

I've a pair of 8 stud NH that have been rewelded that are looking for new home.
Several breakers will have some.

 

[roscoe erf]

It's not the air. It's a chain reaction in the tyre.

no it isn't

 

[Bucks Boy]

Farmers Tyres. Southam , Warwickshire. They’ll probably have them in stock.

 

[bobk]

Get a new one , you'll never true that up .

 

[roscoe erf]

watch the video in full, towards the end he talks about 2 examples, one specifically where they had removed the tyre from the bead on one side and proceeded to weld the rim. The chemical reaction happens so fast that the heat produced expanded the atmospheric air within the tyre so quickly it re-seated the tyre before it then exploded, killing one of the 2 fitters working on the job.

I think you need to listen and watch he stated the tyre reseated itself its the super heated air that expands can't escape and cause the tyre to explode

 

[startinghandle]

Metal is stretched, will be difficult to return as before also could cause vibration in steering at road speed

 

[Courier]

there's no air in it so how will that happen

Wouldn’t even dream of working on a rim with the tyre still on

 

[H200GT]

I think you need to listen and watch he stated the tyre reseated itself its the super heated air that expands can't escape and cause the tyre to explode

I agree, but what caused the air to become superheated was a chemical reaction within the tyre carcass called pyrolysis, which in turn was initiated by applying heat to the tyre rim.

All in all, my point is, that if applying heat to any tyre rim, the tyre should be completely removed first to fully remove the risk of the tyre exploding due to pyrolysis, regardless whether or not it has air in it or if its seated on the rim.

 

[Nearly]

12 X 24 OUTER RIM • Agrispares Trading Co

12 X 24 New outer rims, Square centre type with approx. 94 mm bolt spacing. £90 each plus vat REF1224

www.agrisparestrading.co.uk

 

[Courier]

like I said won't happen if there is no air in it

Have you watched the video to the very end …..
WOW - I thought I knew a bit about wheels and tyres, but ……a potential 22 hour delayed reaction from heat being applied to a wheelnut…..

Go on, bore yourself and watch the whole 9 minutes and 50 seconds without skipping - it might just save a life.

 

[Courier]

there's no air in it so how will that happen

I can’t work in a vacuum….maybe you can ?

 

[David1968]

no it isn't

It's called pyrolysis. As others have said, watch the video.

 

[Courier]

It's called pyrolysis. As others have said, watch the video.

Every day’s a school day ….

 

[Renaultman]

Its bank holiday, no parts available for a week

Couple of hours from you but I would pretty much bet Peter Shepherd will have one in stock and am pretty sure he'll be about tomorrow at least and would probably answer the phone today.

"Agricultural Tractor Tyres, Rims, Sale, very well priced"

 

[flywheel]

Buy a new rim cause you might get a perfect fix but imagine your lifting something on loader & turning... Tyre blows off rim & possibly tractor on her side ....

 

[e5c0rt.mk1]

Christ, I think people are looking to far into this, unless its cracked just bash it back to shape with a big hammer.

Have you seen the state of some alloy wheels that get fixed and put back on cars.

 

[Courier]

Couple of hours from you but I would pretty much bet Peter Shepherd will have one in stock and am pretty sure he'll be about tomorrow at least and would probably answer the phone today.

"Agricultural Tractor Tyres, Rims, Sale, very well priced"

If you can locate and pay for it I can have someone in to collect within 90 minutes and bring it straight to you if the dealer will cooperate.
Not cheap though.

 

[roscoe erf]

It's called pyrolysis. As others have said, watch the video

you watch it and tell me what is causing the tyre to explode heated air thats trapped if there is no air or a way for it to escape at a rate that exceeds the expansion it won't explode the same as any pressure vessel