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TIRE ISSUE
This coach was in for air leaks, and I found that the inside drive axle tire had rubbed and was cutting the side wall of the tire. This appears to be from tire pressure that was low enough to cause the extra bulging of the tire. In the lower picture you can see the bolt heads with the locking clips that caused the wear on the tires. Tires did not get below rated air pressure….The other side has a mark however it is not cut into…
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29 Replies
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Is this a pressure related issue or did someone change wheels?
The reason I ask is some coaches had two aluminum wheels on the drive, some had one aluminum and one steel and the reason was for clearances.
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I had aluminum wheels on the inner postition on the 2000 CC I owned and they caused a problem with the tire rubbing on the rubber outer fender skirt. Took them off and put steel on the inner and problem solved. It didn’t cause any rub on the inside, but I suppose it’s possible.
Were these tires run with low pressure?
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In the first pic it appears that the wheel is aluminum (scraped). 9″ instead of the steel 8.25″? Clearance issue?
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That is our tire pictured. Not wanting to risk an inconvenient failure, it’s been replaced at Jeffs. It’s a mystery…tire has never been underinflated, wheel is steel and we are running same psi as the previous set of drives. Am wondering if the new 315’s have a different sidewall construction or are slightly wider ? Anyway we have raised psi 10lb and will check it in Dallas when we get oil changed in Sept. Geo.
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So Geo,
What’s your new Drive PSI?
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Tim, 95…when I’m at Prevo/Dallas…if it’s still touching, I’ll go to 100 or 105 and see what happens. Geo.
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Thx!
That’s what I’m running on Drive …
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Based on the information provided by Geo it would be wise for all H3 owners to insure their tire pressures are at least what Michelin calls for based on axle weight, but before driving it would probably be a good idea to shine a flashlight under the coach and look at the tires on the oposite side to see if there is any evidence of rubbing on the tire sidewall.
If anyone finds any please post it here. If Geo is an isolated problem all is OK, but if others of a smilar nature have been seen this is serious enough it should be addressed by Prevost immediately.
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I got money those marks are from a broken shock bolt not the dog bone bolts , last year you had a broken shock mount , and I bet it’s from that
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Here you can see the rub/clean mark on the lower bolt……
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Looks like it could have rubbed there , that’s for sure ,
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Peter, my broke shock mnt was onthe other side tag. Geo.
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Ok good I could not remember what side or tag or drive
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Not knowing the geometry at that location could it have been possible that the coach was not at ride height when it rubbed?
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Doug, simple answer is no…this happened over a considerable amount of time. Geo.
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