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Balancing Small Diameter Trailer Wheels
|Author||Topic: Balancing Small Diameter Trailer Wheels|
posted 05-09-2002 10:32 AM ET (US)
I'm getting vibration when trailering above 70 mph when pulling my 13 ft Sport Classic. Hubs, bearings, rims and tires are new from Champion.com. Bearings seem to be properly seated. Tires size is 5.70 x 8" rim. Can they be balanced? I have had no luck yet finding a local shop that will balance these small tires.
posted 05-09-2002 10:38 AM ET (US)
Don't speed. Pulling a trailer and speeding do not mix.
posted 05-09-2002 10:58 AM ET (US)
I agree that high speed trailering is risky but in certain conditions (no trafic, major highway, no sharp turns, long stretch of open road, a light rig) I don't think it is unrealistic. I should have mentioned I do not exceed 75 mph.
posted 05-09-2002 12:01 PM ET (US)
I suppose there's always JC Whitney. Whitney used to carry a little cone shaped device which you set the tire and rim on, then watched the level bubble. Add weight to the high side. Kinda like balancing a paper plate on a pencil point. The heavy side will naturally go down, while the light side rises.
posted 05-09-2002 12:48 PM ET (US)
You can't balance those on a regular machine. It won't help anyway. Those wheels would have to be square for you to feel it in the cab of a truck. Are you sure your tow vehilce isn't what is shaking?
posted 05-09-2002 02:03 PM ET (US)
MD, those wheels are too small to go 70 MPH. Try a 12" or bigger wheel to go that fast. Regards, Jay
posted 05-09-2002 03:06 PM ET (US)
JFM is right. Smaller tire = more rpm = more heat. I think even a 12" wheel is marginal for long distance towing at 75mph.
Last summer I was alarmed at how hot my 12" trailer tires getting after a few hours at freeway speeds, so I have changed to 13". The swap wasn't quite as easy as I expected because I had to reposition the fenders and get a slightly wider axle. But the peace of mind is worth it - I would sure hate to have a blowout at those speeds.
posted 05-09-2002 06:32 PM ET (US)
I just went out and measured the circumference of the tires on my
Jeep = 90 inches. The 8 inchers on your trailer are probably around 48 inches. That poor trailer tire is turning twice for every time your car tire turns once. Please slow down - the life you save might be mine.
posted 05-10-2002 12:22 AM ET (US)
The device mentioned earlier in the thread is a bubble balancer. I have one to sell if you are interested. Made by Hunter as I recall. I am sure I paid something stupid for it. It is heavy. The last wheels I balanced myself were older Chromadora magnesium wheels. They were too fragile to give to the tire monkeys. Make me an offer.
posted 05-10-2002 11:10 AM ET (US)
To go over 55 with those tiny 8-inch tires is insane.
posted 05-10-2002 11:10 AM ET (US)
Tire monkeys? Do you call your doctor a heart monkey? Is an astronaut a space monkey? Please enlighten me Suburbanboy.
posted 01-27-2006 10:42 PM ET (US)
[Revival of four-year-old discussion] I just bought a used triton snowmobile trailer and replaced all bearings. I put new tires and rims on also. Some peaople say you don't have to balance the trailer tires while others said just the opposite. Should I or shouldn't I spend the money on balancing?
posted 01-28-2006 09:12 AM ET (US)
Slow down - no reason to go that fast with a load regardless of your vehicle - OR take the rig on some deserted road, run it up to 75, 80 and slam on the brakes - full panic stop - and see what happens. That's a good idea because, like driving on icy roads, you should get some practice before you drive in traffic that fast around other vehicles hauling kids and families. And if you live let us know what wrecking yard the remains of the boat are.
Ask any professional driver if driving that fast hauling a boat makes any sense at all. Stay safe.
posted 01-28-2006 10:57 AM ET (US)
Balance. Maybe not if you just use the trailer to run
a couple of miles on city streets, but then what happens when
you decide to take a road trip.
Bubble balancing is only static balancing. Spin balancing
But bubble balancing may be all you can get with those tiny
posted 01-28-2006 10:59 PM ET (US)
More on balancing: I took my four 20.5 x 8 x 10 load range E tires to be dynamically balance. They did fit on their machine. However, the dealer that sold me the tires said I shouldn't balance them quite yet because the tires are nylon (not steel cord radial). Once the tires heat up from travelling, they will reshape themselves. He said if you do balance them, first run the tires on the trailer for 30 miles or so until they warm up. Before they cool, you can balance them. Otherwise you will could make it worse if balancing beforehand. I never heard of this before but I guess it could be true. By the way, I will trailer my snowmobiles from Mass, Oh to Old Forge, NY - 8 to 9 hour drive.
The dealer made no mention of this but I've also heard that you could put approx 12oz of antifreeze in the tire and it will distribute itself such as to balance the tire. Anyone have experience in doing so? Does this really work?
posted 01-29-2006 10:16 AM ET (US)
Boat trailer tires are usually nylon core.They will develope a flat spot from sitting,which will usually go away in a few miles of trailering .
I have found that wheel weights will not hold on 8 " rims they do not have the same lip as larger wheels.
Boat trailer tires are not subject to the ridged DOT testing as auto tires so the quality control is lacking...perhaps you have a bad tire?
Also I have found the the galvonized rims are a problem as they are hot galvonized and have blobs of of metal on them causing a imbalance.
I had the same problem as you and switched to painted rims...it cured the problem.
Also check the spring bushings,if they are worn it will only make matters worse.
posted 01-29-2006 06:04 PM ET (US)
dsib, i have never heard of putting antifreeze in a tire ,, graphite, for radio static control and sand in big 18 wheeler tires but not antifreeze,,an old style bubble balancer might work with some stick on weights ,, but as suggested before ,, go to a larger tire ,your trailer will sit higher as will your motor skeg and it will track better behind your tow veh,, i lucked out my trailer tires and my Toyota use the same rim ,
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