| [GMCnet] Vibration [message #341119] |
Mon, 18 February 2019 13:11  |
fbhtxak
Messages: 191
Registered: April 2006
Karma: 0
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John,
I, too, had an elusive vibration problem. It developed enroute to the 2016
spring GMCMI convention/Dothan, AL. At about 55MPH, a moderate vibration
would occur, resembling excessive lateral or radial wheel/tire runout.
Because of intense rain, I just stayed below 55MPH and deferred diagnosis of
the problem until arriving at Dothan and the availability of a paved parking
lot. I did find minor excessive runout at a couple of wheels, including the
RF wheel, but not really enough to explain the problem. Regardless, I
relocated them to see if there was any change... None!
Alex Ferrara noted my dilemma and recommended a visual observation of the
drivetrain at the speed where the vibration was occurring. We removed the
engine hatch, put my "cross" 2x4s in place so Alex could position himself
over the engine and then approached 55MPH on the highway. He saw nothing
alarming until about 52 MPH and then yelled "shut it down". A "balloon" was
evolving on the inside sidewall of the left front tire but would disappear
when the speed was less than 52MPH. It was one of a set of BF Goodrich
Commercial TAs, about 4 1/2 years old and about 40K miles.
I replaced the front tires at Dothan and then the rear ones upon return home
- all with BFG Commercial TAs. I didn't change brands because several other
owners (and vendors) at Dothan recommended changing tires of that
construction (polyester sidewalls/"steel" belts) at about five years,
regardless of brand. The prior tires were "all steel" Goodyear G159s. Those
things, while relatively harsh riding, lasted about 80K miles and ten years
- and yet were not worn to the wear bars when I preemptively changed them
out with the Commercial TAs. The replacement G159s were more than double the
cost of the Commercial TAs. Ten years earlier, they were only about 50% more
than tires with polyester sidewalls. Anyway, I was looking forward to the
more comfortable riding Commercial TAs - and was not disappointed.
'Look forward to the solution of your vibration problem...
Fred
Fred Hudspeth
1978 Royale (TZE 368V101335) - Tyler, TX
1982 Airstream Excella (motorhome) - Cooper Landing, Alaska
Message: 1
Date: Sun, 17 Feb 2019 18:07:36 -0700
From: John Nicholls
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Vibration
Message-ID:
Content-Type: text/plain; charset="utf-8"
Thanks all.
No loose bolts connecting inner cv joint to final drive, FD,. Did try to
move the joints and there was some looseness on the drivers side at the FD
but all FDs that I have touched have some movement where the axle connects.
Checked tires for out of round while having them balanced. Ride height is
low (3/8) on both sides and hace adjusted rears down also but has been like
that for years.
Would a slipped harmonic balancer affect only a specific speed range?
Removal of the axle is the next step but prior to that I am going to run a
compression test to rule out anything like a misfire although one would
expect that to be worse at idle ( I think ).
--
John Nicholls,
78 Royale w/455
Pensacola, FL
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| Re: [GMCnet] Vibration [message #341143 is a reply to message #341119] |
Tue, 19 February 2019 21:49  |
Nicholls
Messages: 36
Registered: January 2008
Location: Pensacola, FL
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Fred, thanks for the reply. In fact, I am running Goodrich Commercial T/A tires. I will check for that issue. Wish Alex was closer.
John Nicholls,
78 Royale w/455
Pensacola, FL
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| Re: [GMCnet] Vibration [message #341230 is a reply to message #341119] |
Sat, 23 February 2019 11:15 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Been having this issue too. I have these same tires on the motorhome. It will be getting a new set this season.
Tom
Eleganza 2
KCMO
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] Vibration [message #341254 is a reply to message #341119] |
Sun, 24 February 2019 10:20 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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The left front tire of the same make on my current coach turned out to have a belt separation which showed up at road speed. A set of Coopers, runs smooth now.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
[Updated on: Sun, 24 February 2019 10:34] Report message to a moderator |
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| Re: [GMCnet] Vibration [message #341269 is a reply to message #341119] |
Sun, 24 February 2019 14:26 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Jim, this issue is on my back passenger mid axle tire from what we can see while I drive. Not absolute on the tire but definatly coming from the back tires on the passenger side. Could you explain further on the joint issue?
Thanks,
Tom
Tom Geiger
76 Eleganza II
KCMO
[Updated on: Sun, 24 February 2019 14:27] Report message to a moderator |
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| Re: [GMCnet] Vibration [message #341273 is a reply to message #341119] |
Sun, 24 February 2019 15:41 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Sorry Jim, should have clarified. Was reading Jim K's response to my post. I'll read thru yours as well. Just was not clear on ghe joint issue Jim K was referring to.
Thanks,
Tom
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] Vibration [message #341589 is a reply to message #341119] |
Fri, 08 March 2019 18:40 |
Nicholls
Messages: 36
Registered: January 2008
Location: Pensacola, FL
Karma: 0
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Feedback time. A refurbished axle on the drivers side corrected the issue. As an aside, I had a tough time getting Tornodo axles with the correct ends. It took O'Reilly three tries and Rock Auto two. NAPA tried and failed and didn't want to try again. Rock Auto does have a sub part no. 7807559 for the ones we need. All use a Cardone 60-1014 for both types. We cannot use the "new" type because the splines are different. Anyway, thanks for all the advice.
John
John Nicholls,
78 Royale w/455
Pensacola, FL
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| Re: [GMCnet] Vibration [message #341590 is a reply to message #341589] |
Fri, 08 March 2019 19:44 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Hallelujah! Sure glad that worked.
I delivered two Eldorado axles to John Beaver yesterday with the suggestion
that he start trying to order "correct" rebuilt axles for me to help him
strip down. I'll pass the Rockauto 7807559 to him in case the local store
he uses for his business don't work out.
Ken H.
On Fri, Mar 8, 2019 at 7:51 PM John Nicholls via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Feedback time. A refurbished axle on the drivers side corrected the
> issue. As an aside, I had a tough time getting Tornodo axles with the
> correct
> ends. It took O'Reilly three tries and Rock Auto two. NAPA tried and
> failed and didn't want to try again. Rock Auto does have a sub part no.
> 7807559
> for the ones we need. All use a Cardone 60-1014 for both types. We
> cannot use the "new" type because the splines are different. Anyway,
> thanks for
> all the advice.
> John
>
>
> --
> John Nicholls,
> 78 Royale w/455
> Pensacola, FL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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