The Ford Barn

john in illinois · 07-30-2018, 04:51 PM

Can you balance a tire on a genuine 40 Ford wheel by indexing off the center hole? I know 35 wheels need lug centric balance.

John

ford38v8 · 07-30-2018, 06:03 PM

Quote:

Originally Posted by john in illinois

Can you balance a tire on a genuine 40 Ford wheel by indexing off the center hole? I know 35 wheels need lug centric balance.

John

Sure you can. Just be sure to balance the wheel itself before installing the tire. A good tire change operator would balance the wheel first, then spin with tire on and adjust the tire's light side to the wheel's heavy side.

V8COOPMAN · 07-30-2018, 10:51 PM

Quote:

Originally Posted by ford38v8

Sure you can. Just be sure to balance the wheel itself before installing the tire. A good tire change operator would balance the wheel first, then spin with tire on and adjust the tire's light side to the wheel's heavy side.

I believe that John is asking if that big center hole is ACCURATELY centered in the wheel. Since that hole was stamped in that center, I'd suspect that it is NOT ACCURATELY centered like a newer machines aluminum wheel is now-a-days. DD

ford38v8 · 07-31-2018, 12:07 AM

Quote:

Originally Posted by V8COOPMAN

I believe that John is asking if that big center hole is ACCURATELY centered in the wheel. Since that hole was stamped in that center, I'd suspect that it is NOT ACCURATELY centered like a newer machines aluminum wheel is now-a-days. DD

And that's exactly the reason I told him to balance the wheel without the tire.

V8COOPMAN · 07-31-2018, 08:14 AM

Quote:

Originally Posted by ford38v8

And that's exactly the reason I told him to balance the wheel without the tire.

Alan...Respectfully, balancing the '40 wheel WITH, or WITHOUT a tire don't mean squat in this case. If you balance the wheel "hub-centric", indexing off of the factory center hole, and it turns-out that that center hole is NOT in the exact center of the five stud-mount holes, that puppy is gonna shake like a hula dancer's butt when mounted via the five studs on the car, TIRE or NO TIRE. What am I missing here? DD

cmbrucew · 07-31-2018, 09:29 AM

Sponsored Links (Register now to hide all advertisements)

Center holes were used for balancing for many years. If an off center rim was encountered it was replaced. Junk yards were full of them. Some times you got a good tire and tube with them.
Bruce

rotorwrench · 07-31-2018, 11:07 AM

If a mandrel centers on the hole, the wheel rim can be checked for concentricity with a dial indicator. If it is concentric to within a few thousandths, say no more than .004", it will balance OK. If not then the balance will be harder to gain the more it's off center. A balance machine that uses the lug studs to align it could surely be set up to do 5" on 5.5" wheels. Ford pickups used them for years.

Heavy Duty · 07-31-2018, 11:17 AM

I use a front drum from my 38, mount the rim on it, and use a spin balancer. It will not be perfect but its close.

tubman · 07-31-2018, 12:33 PM

"V8COOPMAN" makes a good point, one I've never considered. I also have never run into a wheel that was so badly off center that it wouldn't balance. I believe "rotorwrench" is probably right in saying that the quality control was good enough that such wheels are few and far between. I seem to remember that back in the day, there were assemblies that "just wouldn't balance" that ended up getting replaced.

ford38v8 · 07-31-2018, 01:08 PM

Quote:

Originally Posted by V8COOPMAN

Alan...Respectfully, balancing the '40 wheel WITH, or WITHOUT a tire don't mean squat in this case. If you balance the wheel "hub-centric", indexing off of the factory center hole, and it turns-out that that center hole is NOT in the exact center of the five stud-mount holes, that puppy is gonna shake like a hula dancer's butt when mounted via the five studs on the car, TIRE or NO TIRE. What am I missing here? DD

I see the light! Why I didn't see that before, I don't know. In my case of course, it does work the way I said, but only because mounting my wide five wheels by the studs to my wheel adapter then converts to hub centric from stud centric.

By the way, your reference to a Hula Dancer's butt dates you. The 21st Century counterpart would be a Twerker's booty.

Hmm... Think about it!

john in illinois · 07-31-2018, 01:29 PM

Ah the 21st century. I lug centric static balance wire wheels in my shop. I have 5 35 wheels that have from .025-.050 radial run out. So Henry punched out the lug holes pretty well.

I just looked at a 40 wheel and the center hole feels smooth like it would contact a cone ok. It has a lip on it but is not uneven like a 35. I agree that if it is off center it would “twerk”. I will have to talk to the local tire guy that I was going to have spin balance them.

There has been good information in this thread.

Ps I have found wheels with up to 1oz out of balance.

John

B-O-B · 07-31-2018, 03:22 PM

Get Dyna-Beads & forget your balance problems.

tubman · 07-31-2018, 05:20 PM

Quote:

Originally Posted by B-O-B

Get Dyna-Beads & forget your balance problems.

I have seen in quite a few places that the success rate with "Dyna-Beads" is about 60%. If they work (and most of the time is seems they do), they work, if not, well.....

estout81 · 07-31-2018, 05:25 PM

I use the beads in the tires on my '51 sedan. Very smooth!

50droptop · 07-31-2018, 05:49 PM

Would the tire balance beads that are used on motorcycles or heavy trucks work for this application? I have a '36 (in progress) so it's not road worthy yet, but am considering this solution for balancing.

http://www.innovativebalancing.com/

50droptop · 07-31-2018, 05:50 PM

Sorry guys...just saw the posts about the dyna beads. I brought this thread up, then walked away...guess I should refresh before posting.

07-30-2018, 04:51 PM	#1
john in illinois Senior Member Join Date: May 2010 Location: Illinois Posts: 2,183	Balancing 40 Ford tire Can you balance a tire on a genuine 40 Ford wheel by indexing off the center hole? I know 35 wheels need lug centric balance. John Last edited by john in illinois; 07-30-2018 at 04:59 PM.

07-31-2018, 09:29 AM	#6
cmbrucew Senior Member Join Date: Dec 2010 Location: North of sandy ago, CA. Posts: 2,064	Re: Balancing 40 Ford tire Sponsored Links (Register now to hide all advertisements) Center holes were used for balancing for many years. If an off center rim was encountered it was replaced. Junk yards were full of them. Some times you got a good tire and tube with them. Bruce __________________ Works good Lasts long time

07-31-2018, 11:07 AM	#7
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,425	Re: Balancing 40 Ford tire If a mandrel centers on the hole, the wheel rim can be checked for concentricity with a dial indicator. If it is concentric to within a few thousandths, say no more than .004", it will balance OK. If not then the balance will be harder to gain the more it's off center. A balance machine that uses the lug studs to align it could surely be set up to do 5" on 5.5" wheels. Ford pickups used them for years.

07-31-2018, 11:17 AM	#8
Heavy Duty Member Join Date: Nov 2010 Location: Wadsworth Ohio Posts: 48	Re: Balancing 40 Ford tire I use a front drum from my 38, mount the rim on it, and use a spin balancer. It will not be perfect but its close.

07-31-2018, 12:33 PM	#9
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,303	Re: Balancing 40 Ford tire "V8COOPMAN" makes a good point, one I've never considered. I also have never run into a wheel that was so badly off center that it wouldn't balance. I believe "rotorwrench" is probably right in saying that the quality control was good enough that such wheels are few and far between. I seem to remember that back in the day, there were assemblies that "just wouldn't balance" that ended up getting replaced.

07-31-2018, 03:22 PM	#12
B-O-B Senior Member Join Date: May 2010 Location: Ft Mohave,Az Posts: 1,987	Re: Balancing 40 Ford tire Get Dyna-Beads & forget your balance problems.

07-31-2018, 05:25 PM	#14
estout81 BANNED Join Date: Jun 2010 Location: Utica, Ohio Posts: 522	Re: Balancing 40 Ford tire I use the beads in the tires on my '51 sedan. Very smooth!

07-31-2018, 05:49 PM	#15
50droptop Senior Member Join Date: Oct 2016 Posts: 250	Re: Balancing 40 Ford tire Would the tire balance beads that are used on motorcycles or heavy trucks work for this application? I have a '36 (in progress) so it's not road worthy yet, but am considering this solution for balancing. http://www.innovativebalancing.com/

07-31-2018, 05:50 PM	#16
50droptop Senior Member Join Date: Oct 2016 Posts: 250	Re: Balancing 40 Ford tire Sorry guys...just saw the posts about the dyna beads. I brought this thread up, then walked away...guess I should refresh before posting.