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Problem: Front wheels binding on axle


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#1 eshorer

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Posted 26 December 2017 - 06:22 PM

Anybody with a clue what's going on with this Retro car of mine? I replaced some ball bearing front wheels with regular wheels onto a threaded axle (to get them lower) and have run them in a couple of races with no problem. Just before tech last Saturday I noticed that one of the wheels was not turning freely. Another racer helped me free it up by filing what he thought was a burr from the axle near the chassis. There was more than enough play for the wheel to move side to side. It was oiled up and all seemed fine until about 1/3 of the way through the first heat. I thought it was either a braid not getting contact, or my controller going bad, but it turned out to be the wheel binding up again. Since then, a couple of days later, I've noticed that both wheels have bound up, to the point where I can barely turn them on the axle. Could this be "bad oil" or is there some other explanation? 

I've got to get this solved before the next race!

Eddie


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#2 gotboostedvr6

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Posted 26 December 2017 - 06:33 PM

Could acid have found its way into the mix?
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#3 mgerbetz

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Posted 26 December 2017 - 06:40 PM

Two things of note or to check;
1) Are you using an aluminum spacer ? Sometimes they can bind up with the tire/wheel since the metal is soft.
2) Sometimes too much oil can clog things up, try cleaning the axle and wheel and starting over, or rinse out with alcohol until things come clean.
3) Solder and flux can creep in/on to the axle.
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#4 mgerbetz

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Posted 26 December 2017 - 06:40 PM

Oops, that was three.
Michael Gerbetz

#5 Dominator

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Posted 26 December 2017 - 07:12 PM

Always be sure to clean the axle after soldering the inside retainer on with some comet or brillo/sos pad. Another great tool to use is the phenolic bearing shields from ARP. This almost completely eliminates flux and solder from getting into the wheels/axle surface where you don't want it.

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#6 eshorer

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Posted 26 December 2017 - 08:36 PM

Thanks. All of the above seem feasible/useful. No recent soldering took place, so flux may have found its way to the wheels due to my bad habits of improper packing of cars, tools, fluids, etc. I'll give it a good cleaning and see what I find.

Thanks much,

Eddie


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#7 Mike Patterson

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Posted 26 December 2017 - 11:02 PM

I would get some calipers and measure everything, especially the axle. It could be a tolerance problem. Try the problem wheel on a piece of 3/32" piano wire, and see if there's any binding.


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#8 Ramcatlarry

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Posted 26 December 2017 - 11:14 PM

Aluminum on steel works best when NO acid flux is there.  The JK brass bushed fronts helped solve some of my tight wheels. 

Avoid detergent motor oils with aluminum. Synthetic oils have worked fine for me.


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#9 John Streisguth

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Posted 26 December 2017 - 11:16 PM

My bet is the aluminum in the bore of the hub started to gall.  Once that happens, from what I have experienced you might as well throw them away and put on a new set.  

FWIW, I use Mobil 1 on everything, have yet to have any issues with any wheels or motor bearings

 

Edit: I noticed you saw that they had bound up after sitting for a while.  That could be the oil, but is there much humidity where you store your stuff?  Damp basement, or near your laundry faciities?


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#10 eshorer

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Posted 27 December 2017 - 01:30 AM

A couple of more good suggestions. I'll try the wheels on a new axle and wire to check. As for humidity, it's in a cold basement near a laundry room, but it's So. California, so I kind of doubt it's that. I'll take a good look at things tomorrow and report back.

Eddie


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#11 Cap Henry

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Posted 27 December 2017 - 11:05 AM

After I install a set of JK fronts I use 5w-20 synthetic oil and oil front, through the set screw hole, and backside, and to date havent had an issue with wheels locking up.
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#12 Frankie Schaffier

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Posted 27 December 2017 - 06:10 PM

Drop of oil in the set screw hole and work it back and forth. It'll break loose.. It will turn hard at first, keep adding a little oil and spinning the wheel, after a bit it'll spin as it should.
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