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Old 02-24-2018, 05:53 PM   #1
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2014 Sport Coach 360DL front right tire

The right front tire looks like it heavily wearing on the right side. There are some flat spots also. Is this an alingment problem, or something else. thanks in advance.
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Old 02-24-2018, 06:29 PM   #2
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Sounds like the camber is off or wheel bearings are bad. The wheel bearings can cause flat spots too and also the shocks can cause the flat spots.
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Old 02-25-2018, 10:40 AM   #3
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Wear on one side is an alignment problem, usually toe-in but maybe camber. The flat spots are an additional problem. Flat spots basically mean the tire is bouncing up & down as it rolls, which could be wheel balance, bad shocks or failed bearings. If it were my coach I would have the front end aligned and the front wheels balanced and then monitor further to see if the problem gets any worse.
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Old 02-25-2018, 07:54 PM   #4
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I have the same coach except the BH layout. When I purchased the coach there was a slight vibration in the steering wheel. Had the fronts balanced and alignment checked. There was a flat spot. The tire was re-rounded by shaving. Smooth as can be now. Total bill was just over $85.

I'd take Gary's advise.
2014 SportsCoach 361BH - XCS Chassis, ISB 300 - 6.7 Onan QD 6000 Generator, Magnum MS 2000 Inverter
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Old 02-26-2018, 04:02 PM   #5
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So Camber is a tire wear angle and in simple terms, its the inward and outward tilt of the wheel at the top... inward is negative and outward is positive... the wheel has to tilt during a turn to allow for the inside tire of a turn going a different radius in that turn..

The simplest way to test for Camber is to place a long level on the sidewall of the tire at the top and across the center of the wheel to the sidewall of the tire at the bottom... mind you the unit needs to be sitting on a straight level surface...

I think that part of your problem is balance... usually a tire balance problem will allow the wheel to hop... this hop will cup the edge of the tire...

I disagree with the bearing issue if you have oil lube hubs, and you've paid attention to the lube and there has been no work on the front hubs... if they have been apart I'd open it up and check for the bearing pre-load... bearings that are lubed correctly and adjusted correctly just don't change much... and in an oil lube hube might go 50K miles without an inspection....

Also on a high mileage rig without lube fittings on the tie rod ends... a loose tie rod end from lack of lube will allow the wheel to shimmy and would usually wear the tire..

Hope this helps you understand what's happening
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