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Bill Bailey
New Member
3 Posts |
 Posted - 03/09/2020 : 08:17:27 AM
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| I have 2017 IC buses and newer with rear air ride suspension. my inside dual wears real bad mainly on the inside of the inside dual tire, but all the rears are wearing poor. has anyone experienced this and if so what have you done to solve this problem and did it work. I have tried new OME shocks and every air pressure tests, 90psi to 110psi in the rears but still have the same results. Any suggestions? |
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Bluenozer
Top Member
Canada
644 Posts |
Posted - 03/09/2020 : 09:03:06 AM
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| measure from the center of the rear axle cover to the front hub cap(center of it also) if they don't measure the same on both sides add or remove shims located at the front of the rear spring hanger bolts |
OEM trained in wiring and all engine platforms for over 20 years
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tigger2
Advanced Member
USA
470 Posts |
Posted - 03/09/2020 : 11:09:23 AM
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| After checking the alignment per Bluenozer, check out your tread pattern are your rears all block style/ w open outside tread? We have gone to a tire with a closed out side tread and blocks in the center. Still have some wear on inside tires but with routs going in circles all the time it's unavoidable. |
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bwest
Administrator
United States
3820 Posts |
Posted - 03/09/2020 : 12:01:26 PM
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quote:
Originally posted by tigger2
After checking the alignment per Bluenozer, check out your tread pattern are your rears all block style/ w open outside tread? We have gone to a tire with a closed out side tread and blocks in the center. Still have some wear on inside tires but with routs going in circles all the time it's unavoidable.
I think it also depends on the crown of the road. I have most of my routes on old country roads and they all have a big crown in the middle making the inside of the inside tire carrying the weight. |
Bryan |
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flint1
Senior Member
Canada
74 Posts |
Posted - 03/09/2020 : 6:27:42 PM
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If this IC has the Continental Hdr2 tires they came with at that era they seem to be sensitive to the inner heal toe wear. I like Bwest have lots of crowned county roads. I rotate my wheels (switch inner with outer, leave on the same side) and it greatly increases the tire life. I have 150k kms on a set, rotated yearly, still measure 13mm. They are noisy for the first few thousand k |
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unclefish
Senior Member
113 Posts |
Posted - 03/10/2020 : 04:29:17 AM
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I have been to IC factory and saw how the rear ends are put in the IC's. Not 1 single bus has a chance ever come out of there square to the chassis and your front axle. Look at most of your IC's going down the road from behind they crab walk. We had to align ever single 1 of our IC's.
We use the PROTRAK QTC |
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Bill Bailey
New Member
3 Posts |
Posted - 03/10/2020 : 06:37:10 AM
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| Thanks to everyone who responded to my question. I have already looked into some of your suggestions and have tried some of them and I am looking for other problems that might be causing this as well.Hope to find the cure. For now I'm only buying buses with leaf spring rear suspension be cause I have never had this problem until we went to the air ride. |
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dferrell
Senior Member
102 Posts |
Posted - 03/10/2020 : 07:46:15 AM
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quote:
I think it also depends on the crown of the road. I have most of my routes on old country roads and they all have a big crown in the middle making the inside of the inside tire carrying the weight.
I agree with this. Air suspension or leaf, all of ours wear more on the inside of the inside duals. Especially the left side. We have lots of old country roads with a lot of crown. A lot of our roads also get "tracks" in the lane where everyone drives. Some of them are pretty severe. I could easily see where just the inside of the tire is carrying all of the load. The outside tire might not even be touching the ground in some areas. |
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bwest
Administrator
United States
3820 Posts |
Posted - 03/10/2020 : 08:21:33 AM
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quote:
[i]
The outside tire might not even be touching the ground in some areas.
Yep |
Bryan |
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jeepcjron
Advanced Member
USA
262 Posts |
Posted - 04/02/2020 : 04:57:20 AM
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| rear wheel bearing adjustment. |
its like a slinky! useless but fun to watch. |
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krmvcs
Advanced Member
362 Posts |
Posted - 04/08/2020 : 07:46:52 AM
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quote:
Originally posted by jeepcjron
rear wheel bearing adjustment.
Agreed. Almost all of my new HDX's started wearing rear tires this way and found the rear wheel bearing adjustment to be too loose for my liking, to the point that withing the first 6000 miles on them the wear was noticeable and the seals were starting to leak. Ended up replacing the stemco seals with nationals, installed axilok nuts, and rotated the tires. It may be worth it for you to measure your end play if nothing else but to rule it out. |
-Ken- |
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baptistbusman1
Senior Member
USA
175 Posts |
Posted - 04/09/2020 : 05:12:57 AM
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| We started having this problem 4 or 5 years ago with our C2's, and we started switching from M/S tread to just regular straight tread on the rear, and it eliminated the problem. On the first C2's we got with the steer tires on the rear, we got around 85,000 miles before they needed replacing, that's compared to 20,000 miles and then 20,000 miles after getting them capped. |
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Brook Peacock
Senior Member
116 Posts |
Posted - 04/14/2020 : 07:52:32 AM
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The other option is to replace the original air springs and/or electronic struts or shocks with a conversion kit that includes conventional coil steel springs with ordinary struts or shocks. |
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Topic |
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tire wear
