| Her butt wiggles [message #345976] |
Sat, 03 August 2019 06:51  |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Well normally not a bad thing,, but on my motorhome not so much. I get a vibration in what feels to be the back passenger side of the coach. Now I've replaced shocks, replaced wheels, just got a new set of tires and I still get this wiggling. It occurs around 60-65 mph. Is there anything else I need to check back there? This has happened even when I switch around tires, so it seems to be something in the suspension or brake drum?? Totally perplexed!
Thanks all,
Tom
76 Eleganza II
Kansas City Mo
Tom Geiger
76 Eleganza II
KCMO
[Updated on: Sat, 03 August 2019 06:52] Report message to a moderator |
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| Re: Her butt wiggles [message #345988 is a reply to message #345976] |
Sat, 03 August 2019 08:38  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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tgeiger wrote on Sat, 03 August 2019 07:51Well normally not a bad thing,, but on my motorhome not so much. I get a vibration in what feels to be the back passenger side of the coach. Now I've replaced shocks, replaced wheels, just got a new set of tires and I still get this wiggling. It occurs around 60-65 mph. Is there anything else I need to check back there? This has happened even when I switch around tires, so it seems to be something in the suspension or brake drum?? Totally perplexed!
Thanks all,
Tom
76 Eleganza II
Kansas City Mo
Tom,
Your direction is correct, but you don't mention checking tire pressure vs weight.
There are still two other simple (well, simple to find) possible issues.
Jack and block both sides rear. Now push-pull on each rear tire.
Is anything loose?
If yes, it can be either a wheel bearing. - Easy, just uncap and adjust as the manual recommends.
Or bogie arm bearings. - Nothing easy about this.
If it is bad when you do the push-pull top and bottom, that is probably a wheel bearing. If you uncap and put an finger in there, you will feel the movement.
If it is bad when you do the push-pull front and back and different than the top/bottom, arm bearings are the better bet.
Good Luck
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Her butt wiggles [message #346006 is a reply to message #345988] |
Sat, 03 August 2019 10:40 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Tom,
Give me a call a there is too much to address.
(800) 753-7502 WE can help.
On Sat, Aug 3, 2019 at 6:39 AM Matt Colie via Gmclist <
gmclist@list.gmcnet.org> wrote:
> tgeiger wrote on Sat, 03 August 2019 07:51
>> Well normally not a bad thing,, but on my motorhome not so much. I get a
> vibration in what feels to be the back passenger side of the coach. Now
>> I've replaced shocks, replaced wheels, just got a new set of tires and I
> still get this wiggling. It occurs around 60-65 mph. Is there anything else
>> I need to check back there? This has happened even when I switch around
> tires, so it seems to be something in the suspension or brake drum?? Totally
>> perplexed!
>>
>> Thanks all,
>> Tom
>> 76 Eleganza II
>> Kansas City Mo
>
> Tom,
>
> Your direction is correct, but you don't mention checking tire pressure vs
> weight.
> There are still two other simple (well, simple to find) possible issues.
>
> Jack and block both sides rear. Now push-pull on each rear tire.
>
> Is anything loose?
> If yes, it can be either a wheel bearing. - Easy, just uncap and adjust
> as the manual recommends.
> Or bogie arm bearings. - Nothing easy about this.
>
> If it is bad when you do the push-pull top and bottom, that is probably a
> wheel bearing. If you uncap and put an finger in there, you will feel the
> movement.
>
> If it is bad when you do the push-pull front and back and different than
> the top/bottom, arm bearings are the better bet.
>
> Good Luck
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: Her butt wiggles [message #346060 is a reply to message #345976] |
Sun, 04 August 2019 18:57 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Wiggle to me means left to right. You say that it only happens in a narrow speed range. To me that's more of a shake. A shake would be tied to rotating assembly speed with it's frequency. Still sounds like a tire problem since no wiggle below threshhold speed .
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Her butt wiggles [message #346094 is a reply to message #346060] |
Mon, 05 August 2019 12:28 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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Understand. In that context I will have to get someone to ride with me and see what they feel just to make sure wether its a side to side motion or up and down. I see what you mean pertaining to the narrow range it occurs.
Thanks for your comment!
Tom
Tom Geiger
76 Eleganza II
KCMO
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| Re: Her butt wiggles [message #346103 is a reply to message #345976] |
Mon, 05 August 2019 23:00 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I had a slight groaning sound between like 62 and 67 MPH. It was a rough outer bearing on leading RH rear. Wonder if boggie pin is so worn the entire arm is oscillating ?
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Her butt wiggles [message #347717 is a reply to message #345976] |
Wed, 11 September 2019 21:53 |
rickmike
Messages: 252
Registered: September 2011
Location: United States
Karma: 0
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Senior Member |
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Mine did this when I got it 8 years ago. It vibrated so much at 62 mph that I lost a wheel cover.
I had my tires balanced and no change.
Got my tires trued and poof it was smooth as glass.
Turned out to be a 'flat spotted' rear tires.
Rick M.
1974 26' Canyonlands
aka "The General"
Clinton, TN
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