Wheel wobble

[Hettiherald]

As the title suggests, made an interesting discovery today after trying everthing to stop a slight wobble. The next step was a new set of wheels, but i have sorted it at last for the cost of a bit of etch primer and a sanding disc.
The wheels had been reconditioned at some point before my ownership, and pwder coated front and rear. That was the problem! Where the wheel mounts on the hubs had also been painted...... badly, as the paint was very hard, but not level. Where they had been hung to dry in the oven, the coating had sagged and ended up thick at the lowest point. His led to the wheel not being square onto the hub and no matter how well balanced they would run out of true.
Just a point to check if you are having wheel problems

Dave

[Rubce]

Hi Dave

A good bit of detective work.

Regards

Bruce

[Motorsport Micky]

Also VERY dangerous.
As I'm sure Ian will testify there have been more than a few truck wheels come loose caused by badly masked painted hubfaces even when powder coated. The consequence of the road impacts of the wheel on the hubs will cause the fracture of powder coating on the hubs which allows the powder to atomise allowing "fretting" of the wheels and relaxing of the torque with consequent " Ehh, somebodies lost a wheel ! I wonder who's it was ? OOooeerr " comments.

Micky

[milothedog]

Also VERY dangerous.
As I'm sure Ian will testify there have been more than a few truck wheels come loose caused by badly masked painted hubfaces even when powder coated. The consequence of the road impacts of the wheel on the hubs will cause the fracture of powder coating on the hubs which allows the powder to atomise allowing "fretting" of the wheels and relaxing of the torque with consequent " Ehh, somebodies lost a wheel ! I wonder who's it was ? OOooeerr " comments.

Micky

Indeed, we were not allowed to lubricate wheel studs either as this was a major cause of tapered wheel nuts damaging the rims (spreading through over tightening) or in the case of spigot mounted types, splitting the washer, both could result in wheels coming loose.

Then there's all the hassle you have from VOSA when they hear of it and if all goes really pear shaped you find yourself in front of the area traffic commissioner trying to hang on to your operators licence,

Ian.

[Hettiherald]

Good point that ian and micky made. Just bear in mind that most owners would not know this, and would be happy to see a nice shiney wheel. I put the blame for this, as micky says, very dangerous practice, firmly at the door of the person that undertook the powder coating. They should know the problem especially if they undertake these jobs on a regular basis.
Oh well, get the message out there, and clean off any thick paint on the mounting boss of the wheels.
Dave