| Tire squirm [message #350531] |
Fri, 06 December 2019 14:08  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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FWIW, some time when you have time, take your GMCMH to a empty part of a parking lot. Stop somewhere out of the way. Then, turning the steering wheel, crank the wheel all of the way either left or right. Put coach in gear and go forward 1/4 to 1/2 of a circle. Stop, put it in park and get out and look at the 4 rear wheel/tires. It is shocking how much those bogie arms and tires bend/squirm to accommodate a turn. / | \ Front tires don't react nearly as extreme as rears. So, every time you turn a corner, you are really working those sidewalls. IMO, with that kind of squirm, this is why most blow-outs occur on the rear as those sidewalls are consistantly being bent/streatched to their limits. So, I think we need to be running a well made/engineered tire that is capable of handling this abuse. When I park my coach for the night or for that matter, any period of time, if I had just turned the wheel a little, I will point the wheels straight forward, then pull forward and back 2-3 times just to take the bend/squirm out of the tires. Just what I do. (JWID)
Oh, BTW, don't leave your coach parked like I've suggested very long. Just long enough to observe how much they bend/squirm.
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: [GMCnet] Tire squirm [message #350533 is a reply to message #350531] |
Fri, 06 December 2019 14:20  |
Mike Kelley
Messages: 467
Registered: February 2017
Karma: -2
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Senior Member |
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Gr8 advise Larry.
I learned this from a long time GMC Classics member the first year I owned my first coach. Have followed his and your advise ever since.
Thanks also to James H.
Mike/The Corvair a holic
Sent from my iPhone
> On Dec 6, 2019, at 2:08 PM, Larry via Gmclist wrote:
>
> FWIW, some time when you have time, take your GMCMH to a empty part of a parking lot. Stop somewhere out of the way. Then, turning the steering wheel,
> crank the wheel all of the way either left or right. Put coach in gear and go forward 1/4 to 1/2 of a circle. Stop, put it in park and get out and
> look at the 4 rear wheel/tires. It is shocking how much those bogie arms and tires bend/squirm to accommodate a turn. / | \ Front tires don't react
> nearly as extreme as rears. So, every time you turn a corner, you are really working those sidewalls. IMO, with that kind of squirm, this is why most
> blow-outs occur on the rear as those sidewalls are consistantly being bent/streatched to their limits. So, I think we need to be running a well
> made/engineered tire that is capable of handling this abuse. When I park my coach for the night or for that matter, any period of time, if I had just
> turned the wheel a little, I will point the wheels straight forward, then pull forward and back 2-3 times just to take the bend/squirm out of the
> tires. Just what I do. (JWID)
>
> Oh, BTW, don't leave your coach parked like I've suggested very long. Just long enough to observe how much they bend/squirm.
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
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