Technical lug to hub centric spacer rings for F1 wheel to 40 ford hub

I'm having an out of round issue with the front brake drums. It's making me wonder if the lug centric F1 wheels that I'm using is causing this problem. These are new drums. I've had them turned but there is still a spot that drags. I'm now wondering if using hub centric spacer rings will true the wheel enough to help. Does anyone have a size to share? Does anyone have experience to share with help in resolving this issue.

I'd appreciate experienced knowledgeable responses.

thanks in advance.
ALan

 

I see that you said it’s out of round, but what does it do? Does it vibrate? Shimmy? I always have drums with high spots and it doesn’t seem to effect performance.

 

What trouble is this "dragging spot" causing you?

Were the drums mounted to the hub when you had them turned?

Maybe check the face of the hub flange for run-out with a dial indicator; I've seen the flanges on '40 (01A) hubs warped when the swedged in studs were removed improperly.

You could also mount the hub/drum on a bare spindles and indicate the ID of the drum with and without a wheel to check.

Boling Bros or Speedway drums?

 

Hubcentric rings are never a bad idea and don't cost a lot to try. But new drums made out of Chinesium made in a cottage foundry to off-shore tolerances are probably the "usual suspects".

 

I had some made at a machine shop out of aluminum. Don’t know if it helped but made me feel better.

 

If you are talking about real 1949-1952 F-1 Ford steel wheels, you would be surprised to find those center holes are not perfect. Henry didn't use the hub to locate the wheel, so why would he be concerned the center hole was within a couple thousandths? So putting a hub-centric ring in there will not get you to perfect.

 

Rich hit a couple of ponts there but I would be checking the hub flange with a dial indicator for runout.

You say F-1 wheels, does that mean F-1 hubs and brakes too or ?

Also how were the wheels installed? hand tighen and torque the nuts or run them down with a rattle gun unitil It quit rattling. A local tire shop was famous for warping rotors in the 80's when they would run the lug nuts on with an air wrench. They sold a lot of brake jobs off that after they warped the rotors and my students and I turned a lot of rotors that they warped. One of those students ended up as their tire shop manager and another ended up as their front end/brake man and I think that some changes may have been made on how they install wheels and tires on cars.

 

Besides the unknown concentricity of the wheels center hole as mentioned by @alchemy, another thing, is there even enough of a register on a '40 hub to fit a ring especially with the thick center on the aftermarket cast drums.

 

You would need to machine off the rough cast and cut a ring to fit whatever weird shape you were left with.