Demountable wheel question

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Modeltmike
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Demountable wheel question

Post by Modeltmike » Tue Nov 29, 2022 7:18 pm

Working on my latest purchase. The demountable wheels have a “detent” where the rim “loop” bolts. Is this a hays wheel? The hays rims seem to have a larger “foot” where at bolt. I have several rims that are a little different that seem to fit. Trying to figure out if these are hays wheels, should use Hays rims, how many different types of 30 x 3.5 demountables were made, any additional information that might be helpful? Thanks Mike.
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RajoRacer
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Re: Demountable wheel question

Post by RajoRacer » Tue Nov 29, 2022 7:46 pm

Yes, those appear to a Hayes wheels which take the Hayes rim with the pronounced lug that nestles into that dip. There was something like 4 or 5 wheel & rim combinations.


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Modeltmike
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Re: Demountable wheel question

Post by Modeltmike » Tue Nov 29, 2022 7:54 pm

Some of the wheels I have tighten up to the fellow and others don’t. Not sure what brand is what.
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Scott_Conger
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Re: Demountable wheel question

Post by Scott_Conger » Tue Nov 29, 2022 8:20 pm

Those are two different brands of rims

take a picture of all 4 rims, or at least inspect all four rims...you'll find at least 1 with the rolled-in bead (upper picture)(Hayes 2845B), and one with a sharp flange (not a bead), (lower picture) (FORD 2845B). Because they are the same P/N they are theoretically supposed to be interchangeable, though the few cars I've had with demountibles, I've always seeked out a matching set of 5 of one type, myself.

A search of the Forum (MTFCA demountable rim types) will bring up lots of useful information for you.
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Re: Demountable wheel question

Post by CudaMan » Tue Nov 29, 2022 10:21 pm

The lugs are designed to have a gap between them and the felloe when tightened. Someone in the past over tightened and bent the lugs that now fit flush.
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Scott_Conger
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Re: Demountable wheel question

Post by Scott_Conger » Tue Nov 29, 2022 10:27 pm

You know, I've found that in nearly every case where a lug sits hard on the rim, that rim was rolled around on a hard floor and the rear flange was flattened ever so slightly, and a little bit of time spent on it will bring the flange "upright" a bit, the rim doesn't seat as deeply, and the lugs then stand off correctly again. It's distortions like this that can make a rim "wobble" when the wheel itself is pretty true...

Those lugs are pretty darn robust in themselves, but if the car's rolled without the benefit of rims/tires, the wheel doesn't tend to hold up for long.
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Re: Demountable wheel question

Post by Allan » Wed Nov 30, 2022 6:05 am

I believe they are Hayes wheels. The Hayes wire wheels I have on two of my T's have the same indent at the lug holes to accommodate the foot on the lug, and the rolled in outer land.
The good thing is any lugged rim will fit your Hayes wheels.
The Hayes lug is not meant to impinge on the outer face of the felloe. As Scott indicates, if the lug does meet the felloe, either the lug is bent or the inner land on the felloe is bent/worn, allowing the rim to go further onto the felloe. The rims with lugs are designed to wedge on the wider inner land on the felloe. Your second photo of the rim with the lug standing off the felloe shows a small gap between the rim and the felloe. This is how the two are meant to present. No gap on the outside is an indicator of worn, rims/felloes.

Allan from down under.


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Modeltmike
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Re: Demountable wheel question

Post by Modeltmike » Wed Nov 30, 2022 5:38 pm

If I am understanding correctly there should be a gap between the lug and fellow. Basically the fellow should pull up against the “ridge” of the rim and whatever gap between the fellow and the lug is correct? Does the space in this photo seem correct? Thanks
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Allan
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Re: Demountable wheel question

Post by Allan » Wed Nov 30, 2022 7:57 pm

Mike, I believe the rims wedge on one of the rolled edges only. Felloes to take lugged rims like your Hayes rims have a wider land rolled outwards on the inner edge of the felloe. The rim should wedge on that rolled edge, the four wheel bolts maintaining that wedge effect. It is this rolled land to which Scott refers. If it has been damaged, by rolling with no rim on, or by wear from a loose rim, then the rim will go on further and the lug may well contact the felloe edge.

On loose lug wheels like our Canadian sourced cars, thse Kelsey wheels are designed for the rim to wedge on the outer rolled edge of the felloe.

Some will say the rims should contact both rolled ages or the felloes, but on little used wheel/rim combinations of very good condition, this is not the case.

Allan from down under.

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