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Old 01-16-2003, 05:45 PM   #15
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I doubt any tire shop would be able to handle the hubs. Someone who balances either engine componets or rebuilds drivelines(drive shafts) should be able to handle the hubs.

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Old 12-03-2010, 08:49 PM   #16
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Today I asked the RV shop where I took my '72 Ambassador (a SOB shop) to balance the wheels and tires for me since they were already off the trailer. The service guy told me they don't usually balance trailer tires. I said that I would like to have them balanced. He insisted that since trailer wheels flexed when turning, the weights would fall off and it was a waste of money. He said he'd hate to have me waste my money. I didn't persist. I believe that balanced wheels/tire/hubs are a necessity. Anyone run into this stance from an RV dealer?
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Old 12-03-2010, 08:57 PM   #17
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He's trying to "buy" credibility by giving advice of saving $$$ to compensate for their lack of ability to perform the maintenance. An AS, in particular, because of their riveted structural shell will appreciate running gear balancing.

Many trailers may not necessarily require balanced running gear, as nobody is riding back there, but most RV trailers will benefit in the long run from not being shaken loose by vibration.
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Old 12-03-2010, 09:34 PM   #18
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Centramatic Wheel Balancers sold by Inland RV should improve balance.
Centramatic

The video on the website looks credible.
I have them on my unit.
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Old 12-03-2010, 09:39 PM   #19
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Today I asked the RV shop where I took my '72 Ambassador (a SOB shop) to balance the wheels and tires for me since they were already off the trailer. The service guy told me they don't usually balance trailer tires. I said that I would like to have them balanced. He insisted that since trailer wheels flexed when turning, the weights would fall off and it was a waste of money. He said he'd hate to have me waste my money. I didn't persist. I believe that balanced wheels/tire/hubs are a necessity. Anyone run into this stance from an RV dealer?
Anyone that claims tires don't need to be balanced on an Airstream trailer, very obviously knows "zero" about the characteristics and/or how an Airstream behaves when subjected to vibrations.

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Old 12-03-2010, 10:02 PM   #20
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Dzn,
They have a full tire shop there. He truly believes it is unnecessary.

Andy, You're right about that. I just didn't feel like arguing with him. I'll take it to the tire shop and get them balanced before we hit the road. Heck I may even order a set of centramatics. But has anyone reported that their balance weights fall off due to the wheels flexing during turns? Sounds like bull to me.
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Old 12-03-2010, 10:23 PM   #21
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a 7 (almost 8) year old thread on balancing, wow, good dig.

the primary impediment to accurate balancing is in fact the wheel design.

almost all trailer wheels are lug centric.

did you ASK the shop guys if they had the adapter

or were really CAPABLE of performing a good balance job on trailer wheels?
________

((trying to decipher the tech commentary))

weights can and do fall off for a variety of reasons (tape or crimp style)

and might need to be applied to either lip on steel rims.

trailer TIRES roll or edge/shoulder a lot, especially backing up with multiple axles...

the TIRE ROLL could conceivably push a crimped weight off or loosen them.

this is wagn/speculation only.
_________

the alloy factory rims typically have ONLY inner lip weights, so even that's not perfect.

they are delivered to the factory PRE balanced,

though some older threads suggest NO balancing is done.

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Old 12-03-2010, 10:44 PM   #22
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Dzn,
They have a full tire shop there. He truly believes it is unnecessary.

Andy, You're right about that. I just didn't feel like arguing with him. I'll take it to the tire shop and get them balanced before we hit the road. Heck I may even order a set of centramatics. But has anyone reported that their balance weights fall off due to the wheels flexing during turns? Sounds like bull to me.
First of all, trailer wheels are heavier and much stronger than auto wheels. If trailer wheel flex, I think you would need a micrometer to measure it. How many times has anyone heard of auto wheel weights falling off? If properly installed, about the only way they can come off is if the wheel rubs against a curb.

Weights that are installed with double sided tape, indeed can come off, if the wheel is not properly cleaned and/or if the tape simple gives up because it's very old. By the time the tape gets old, the tires should have already been replaced.

If your tire shop has a computer, have them look at the Centramatic video.

On the other hand, a good tire shop knows that balancing running gear is supposed to include the hub and drum. However, all to many shops cannot balance the hub and drum along with the tire and wheel as an assembly. Maybe that shop was too embarrassed to say "they can't do it".

The Centramatics are playing a huge part in solving the running gear balance dilemma, as they continue to keep everything balanced as the tire wears, avoiding the rebalancing issues.

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Old 12-03-2010, 11:15 PM   #23
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Dzn,
They have a full tire shop there. He truly believes it is unnecessary.

Andy, You're right about that. I just didn't feel like arguing with him. I'll take it to the tire shop and get them balanced before we hit the road. Heck I may even order a set of centramatics. But has anyone reported that their balance weights fall off due to the wheels flexing during turns? Sounds like bull to me.
Any shop is limited by their own particular time (billable hours), talent, and tools. If any of the three are lacking, they probably will not perform a particular labor operation, for profitability reasons.
It may be, as 2Air says, they don't have adapters for lug centric balancing.

I have a very hard time believing the stresses of low speed maneuvering are any greater than the stresses of high speed cornering of steer wheels on a car or truck. Can wheel weights loosen and come off? Yes. Is it very common? No, if properly fastened, whether stick on or clamp on.

Dynamic balancing, (weights on the inside edge and outside edge) is best in a perfect world, but cast aluminum wheels are born much more uniform than stamped steel wheels, thus dynamic balancing is not as critical.

Most of the balancing needs of an aluminum wheel/tire setup is due to tire out-of -balance because of belt overlap, etc.

IMO, an AS tire/wheel should be balanced and I like the idea of Centramatics as an additional measure so any imbalance in rotor or drum and hub imbalance can be remedied without additional worries when rotating tires,etc.
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Old 12-04-2010, 07:33 AM   #24
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The wheels on my 1967 Tradewind are balanced and have been for about 5k miles. I have yet to fling a weight. We use Centramatics on the trucks ( 26k GVW & larger) where I work, they are a very usefull addition to the regular wheel balance. I intend to install them on my Airstream. Adios, John
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Old 12-04-2010, 09:45 AM   #25
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I've gone 25k on my balanced wheels and not lost a weight. Lots of rough roads and turns in those miles. Just had to replace a couple tires and had them balanced as well. ~2Alaska
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Old 12-05-2010, 03:29 PM   #26
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While not an Airstream, our 27-foot Bayliner cabin cruiser has triple axles; and the tires rollover so bad that the tires look like they are going to come off of the rims. The one saving grace is that when we make the tight U-turn on the boat ramp, the pavement is usually wet from other boaters pulling out of the water. However, when we pull the boat out of our backyard, the tires look like they are going to come off; and they leave skid marks all across our driveway. (Hey, maybe I should wet down our driveway before pulling out.) By the way, the trailer tires are balanced; and we have never lost a wheel weight. (FYI, the boat trailer has Green Ball, 225-75x15, LRE tires on it from Discount Tire.)

As an aside on Centramatics, I checked with our neighbors (long-haul truckers) on their experience with Centramatics on their big rig. They have been using these for years on their tractor; and while they say they can't tell a significant difference in road vibration, the main reason they continue to use them is longer tire wear. On the steering axle, they used to get 90-110,000 miles on their front tires; and with the Centramatics, they consistently get 185,000. And, on the drive wheels, they get 300,000 (with) versus 250,000 miles (without).

They said that they didn't know if Centramatics came in a smaller size to fit travel trailers (but we do, thanks to Andy). However, they strongly recommended checking to see if we could add them to our Tundra.

Andy, do they make Centramatics to fit 18-inch, TRD (alloy) wheels on a 2008 Tundra CrewMax? Have you sold any for this application?
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Old 12-05-2010, 03:43 PM   #27
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centramatic was serving truckers, rv'rs and passenger trucks for many years b4 any vendor here started stocking them.

and 14 inch sizes are NOT unique or new just for smaller/vintage streams.

go to the c' web site

http://www.centramatic.com/Page.aspx?page=Balancers

or guugle to one of their LARGE redistributors that have search tools, like this...

Centramatic Wheel Balancers - Free Shipping on Centramatic Dynamic Wheel Balancers

they make 'em for 4-3-2 and 1 ton dually trucks, 3/4, half ton, jeeps, SUVs, motor bikes and motorhomes...

they also sell a few models that are drilled to fit a variety of bolt patterns.

IF u want black (or pink), paint them just like many of the vendors (and customers) do.

they can be ordered directly from C or dozens of rv/truck supply shops.

i think u can even drive to teXas and git'em at the factory.

cheers
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Old 12-05-2010, 06:00 PM   #28
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Putting marbles in your tires is a lot cheaper.
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