Home » Public Forums » GMCnet » Bent bogie arm
| Re: [GMCnet] Bent bogie arm [message #245516 is a reply to message #245512] |
Fri, 28 March 2014 11:45   |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
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| gbarrow wrote on Fri, 28 March 2014 09:35 |
Ken,
How did you bend the bogie "in"? Did you park next to a telephone pole or some other strong anchor post? Any pictures or description of your process?
I think, but haven't verified yet, that my passenger side front bogie is bent outward. The tire is wearing on the inside.
Thanks
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You may be able to straighten that tire with a couple of shims under the bottom part of the bogie.
Roy Keen
Minden,NV
76 X Glenbrook
[Updated on: Fri, 28 March 2014 11:46] Report message to a moderator |
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| Re: [GMCnet] Bent bogie arm [message #245521 is a reply to message #245520] |
Fri, 28 March 2014 12:08 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
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Dwayne,
Did Jim bend it in or out? And where can I find the video?
Thanks
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: [GMCnet] Bent bogie arm [message #245522 is a reply to message #245520] |
Fri, 28 March 2014 12:05 |
Mr ERFisher
Messages: 7117
Registered: August 2005
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Where?
FREE WIFI @ Mickey D
On Mar 28, 2014, at 10:04 AM, dwayne jacobson <dwayne.jacobson@gmail.com> wrote:
> jim hupy has a short video on how to bend it.
> dwayne
> white rock
> 77 kingsley that had a bent bogie straightened by jim
>
>
> On Fri, Mar 28, 2014 at 9:35 AM, gene barrow <barrowgene@gmail.com> wrote:
>
>>
>>
>> Ken,
>> How did you bend the bogie "in"? Did you park next to a telephone pole or
>> some other strong anchor post? Any pictures or description of your process?
>>
>> I think, but haven't verified yet, that my passenger side front bogie is
>> bent outward. The tire is wearing on the inside.
>>
>> Thanks
>> --
>> Gene Barrow
>> Lake Almanor, Ca.
>> 1976 Palm Beach
>> _______________________________________________
>> GMCnet mailing list
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>
>
> --
> Dwayne Jacobson
> White Rock BC
> Cell: 604-644-8090
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| Re: [GMCnet] Bent bogie arm [message #245525 is a reply to message #245512] |
Fri, 28 March 2014 12:13 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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Gene,
In my case, I'd almost had an accident approaching Branson, MO. I dropped
the right middle and rear wheels off of a high pavement shoulder during a
"starboard hard as possible" turn, bending the rear arm out about 3/4". I
was so rattled by the experience that I didn't notice the damage until the
ferry arrived in Alaska. After hunting all over Alaska for someone, or
some way to fix it, we arrived at Elmendorf AFB at Anchorage. There, the
power post in the campground was protected by a 6" steel pipe buried down
into the permafrost and filled with concrete.
I parked one 6-ton bottle jack height away from that post. With the air
bag deflated for that wheel (4-bag system), I put the jack between the post
and the spindle and pumped away. After sliding the coach a few inches in
the gravel, the arm stayed where I wanted it. When I finally got to Jim
Bounds' 8-10 months later, that arm was right.
But the middle arm was still bent slightly out. Since Jim had no
permafrost in Orlando, not to mention a steel post, we had to devise
another method -- he'd never bent one in before. We parked the coach in
the doorway of his concrete block shop. A 4x4 between the frame and the
door casing on the left side kept the coach from sliding when we put the
port-a-power between the spindle and the door casing on the right side.
Just a few pumps and that was fixed.
If your arm is bent only in or out, only toe should be affected. In that
case, the tread on the tire should be worn to a "sawtooth", which you can
feel by running your hand back and forth across the tire tread. If the
"tooth" is high on the inside of the tire, you've got too much positive toe
(the rubber's "pushed up" to the inside). If the high side is out, there's
too much negative (pointing out) toe.
No photos -- I wasn't planning a seminar. :-)
Severe wear on the inside sounds more like negative camber (wheel leaning
in at the top) to me. That will probably require a "Sirum Arm" -- a long
2"-3" pipe welded to an old wheel rim to use as a lever. You can, as
suggested, shim the bogie to correct that -- but ONLY if BOTH wheels are
equally incorrect.
HTH,
Ken H.
On Fri, Mar 28, 2014 at 11:35 AM, gene barrow <barrowgene@gmail.com> wrote:
>
>
> Ken,
> How did you bend the bogie "in"? Did you park next to a telephone pole or
> some other strong anchor post? Any pictures or description of your process?
>
> I think, but haven't verified yet, that my passenger side front bogie is
> bent outward. The tire is wearing on the inside.
>
> Thanks
> --
>
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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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| Re: [GMCnet] Bent bogie arm [message #245548 is a reply to message #245525] |
Fri, 28 March 2014 14:29 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
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Thanks Ken,
If I place a straight edge (like a 4'or 6" aluminum level across the center of the wheels or the drums and measure the distance from the frame to the level at each end that will give me an indication of whether the wheels are running parallel to the frame.
And, if I use a level across the center of each wheel to check for "plumb" will either of these measurements be "close enough" to be meaningful.
How much variation is any is acceptable?
Just trying to get a frame of reference to determine if I need repairs/adjustment before attempting a rear wheel alignment.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: [GMCnet] Bent bogie arm [message #245550 is a reply to message #245527] |
Fri, 28 March 2014 14:48 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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| A Hamilto wrote on Fri, 28 March 2014 10:27 |
| Ken Henderson wrote on Fri, 28 March 2014 12:13 |
...Severe wear on the inside sounds more like negative camber (wheel leaning in at the top) to me. That will probably require a "Sirum Arm" -- a long 2"-3" pipe welded to an old wheel rim to use as a lever. You can, as suggested, shim the bogie to correct that -- but ONLY if BOTH wheels are equally incorrect.
HTH,
Ken H.
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Has anyone ever shimmed the spindle to fix camber on a single rear wheel, when a "Sirum Arm" is not available?
Would correctly placed shims between the spindle and the swing arm correct alignment enough to reduce tire wear and get you someplace where the swing arm can be straightened?
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I paid a frame shop to fix my bogies years ago. They made them much better but I still had tires wearing an inside or out side treads so to fix the problem tires I added shims as need on the top or bottom between the frame and the bogie where they were needed. It was a little time consuming for me but it corrected the uneven wear of the treads.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: Bent bogie arm [message #245555 is a reply to message #245367] |
Fri, 28 March 2014 15:33 |
77PBFinland
Messages: 31
Registered: March 2014
Location: Finland
Karma: 1
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Thank you everybody, for great advices and special thanks to offering tools and help!
It has been little challencing to handle this whole process from here overseas because of distance and time-lag.
I posted links and call to my friend late yesterday evening, and after that I couldnt reach him in e-mail phone or sms, until 2 hour ago I got mail back from him.
They have heavy hydraulic jack and he had read instructions how to do job, so I believe everything is okay now and they are rolling again.
He is one of those mechanics who do what has to be done, not only what he can do.
When they were leaving LA he noticed some slight wear outside of right mid tire, but before Phoenix when check tires and bearings again, there was tire belt stare back to his eye.
It was looking so nasty that he was going to change spare under coach, but when cover was taken off, spare was looking same.
It seems that there has been some trouble formerly, that seller would not mind tell us.
I try post pics later when got better ones.
Loffen, I have heard rumors of two Swedish coaches, theres at least two other in Finland, 75 Glenbrook and 78 Royale.
Maybe we should organize Nordic GMC convention at some point?
Jake
Jarkko Lampinen
`77 Palm Beach TZE167V100508
Finland Europe
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| Re: [GMCnet] Bent bogie arm [message #245567 is a reply to message #245513] |
Fri, 28 March 2014 17:45 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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OK,
Lets look at the comments one by one:
Jake noted:
Our friend is now driving it from Los Angeles to Galveston TX to get shipped in Finland, and in first leg just before Phoenix AZ
noticed that right side mid tire was wearing out fast.
After a closer look and road side tape measuring it seems that right front bogie is bent in and it is 3/4" closer to frame than
opposite side.
Your response:
Make sure that it is really bent. The person checking it may have just parked it after a turn, and it has not found it's neutral
position yet. On corners, they go all catty wompus, look like they are about to fall off, and scare the cr__ out of you. Drive it
straight for a ways before checking
My thoughts:
My comment of "I guess you missed reading this" referred to Jake's comment as your response was much later in the thread and I
thought you REALLY might have missed it.
The coach had been driven from LA to "just before Phoenix' which is over 300 miles.
The driver noted that the mid tire was wearing out fast when coupled with the fact that he measured it and it was bent in 3/4" in
was enough for me to agree that it WAS bent in.
Now you state:
I didn't miss that at all, however in my mind, being "bent" and "tire wear" are certainly "questionable facts". I don't think we
know anything of this drivers qualifications. I just know that when the suspension is all out of shape due to parking in a turn, an
unfamiliar person can get concerned about that, and perhaps "imagine" new tire wear that isn't really there.
My response:
To me the fact that the driver noted that the tire was wearing and knew enough to take measurements told me he knew what he was
doing whereas from what you note directly above you didn't think he did.
The final email from Jake demonstrated that the driver did know what he was doing!
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Corley Wooldridge
Rob,
I didn't miss that at all, however in my mind, being "bent" and "tire wear" are certainly "questionable facts". I don't think we
know anything of this drivers qualifications. I just know that when the suspension is all out of shape due to parking in a turn, an
unfamiliar person can get concerned about that, and perhaps "imagine" new tire wear that isn't really there.
(This actually happened to me when I was stopped for gas one time. A stranger came up to me and said my tire was going to wear out
fast because the suspension was all bent out of shape and I should get it fixed right away, and it was unsafe.)
I don't mean to imply that absolutely is the case, but... If the driver is not familiar with GMC MHs, he might see a misaligned tire
on a parked coach, and decide it is wearing out a tire when it is actually not doing so at all. Or, it could very well be bent, only
checking it properly will tell.
Stranger things have happened, and I felt it worth questioning. If you don't agree, well, isn't this all about different ideas on
things, and exchanging possibilities, ideas and information? JMHO
Corley
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Bent bogie arm [message #245568 is a reply to message #245555] |
Fri, 28 March 2014 17:50 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Jake,
Looks like things are back under control. You're fortunate to have a friend who is a mechanic that was observant and able to provide
accurate information so the GMCnet could help him.
When you get the coach over to Finland see Maintenance Manual X-7525 / Section 4 - REAR SUSPENSION / Page 4-32 & 33 / ON-VEHICLE
ADJUSTMENTS / REAR WHEEL ALIGNMENT.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Jarkko Lampinen
Thank you everybody, for great advices and special thanks to offering tools and help!
It has been little challencing to handle this whole process from here overseas because of distance and time-lag.
I posted links and call to my friend late yesterday evening, and after that I couldnt reach him in e-mail phone or sms, until 2 hour
ago I got mail back from him.
They have heavy hydraulic jack and he had read instructions how to do job, so I believe everything is okay now and they are rolling
again.
He is one of those mechanics who do what has to be done, not only what he can do.
When they were leaving LA he noticed some slight wear outside of right mid tire, but before Phoenix when check tires and bearings
again, there was tire belt stare back to his eye.
It was looking so nasty that he was going to change spare under coach, but when cover was taken off, spare was looking same.
It seems that there has been some trouble formerly, that seller would not mind tell us.
I try post pics later when got better ones.
Loffen, I have heard rumors of two Swedish coaches, theres at least two other in Finland, 75 Glenbrook and 78 Royale.
Maybe we should organize Nordic GMC convention at some point?
Jake
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Bent bogie arm [message #245611 is a reply to message #245568] |
Fri, 28 March 2014 22:18 |
corleyw
Messages: 130
Registered: June 2007
Location: Battle Ground, WA
Karma: 0
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| USAussie wrote on Fri, 28 March 2014 14:50 |
Jake,
Looks like things are back under control. You're fortunate to have a friend who is a mechanic that was observant and able to provide
accurate information so the GMCnet could help him.
When you get the coach over to Finland see Maintenance Manual X-7525 / Section 4 - REAR SUSPENSION / Page 4-32 & 33 / ON-VEHICLE
ADJUSTMENTS / REAR WHEEL ALIGNMENT.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Jarkko Lampinen
Thank you everybody, for great advices and special thanks to offering tools and help!
It has been little challencing to handle this whole process from here overseas because of distance and time-lag.
I posted links and call to my friend late yesterday evening, and after that I couldnt reach him in e-mail phone or sms, until 2 hour
ago I got mail back from him.
They have heavy hydraulic jack and he had read instructions how to do job, so I believe everything is okay now and they are rolling
again.
He is one of those mechanics who do what has to be done, not only what he can do.
When they were leaving LA he noticed some slight wear outside of right mid tire, but before Phoenix when check tires and bearings
again, there was tire belt stare back to his eye.
It was looking so nasty that he was going to change spare under coach, but when cover was taken off, spare was looking same.
It seems that there has been some trouble formerly, that seller would not mind tell us.
I try post pics later when got better ones.
Loffen, I have heard rumors of two Swedish coaches, theres at least two other in Finland, 75 Glenbrook and 78 Royale.
Maybe we should organize Nordic GMC convention at some point?
Jake
_______________________________________________
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Rob,
I apologize, I'm sorry that my responses are not up to your superb standards. I think it's probably time for me to retire from this forum since I'm so stupid.
Corley
'76 Glenbrook
29 other vehicles
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| Re: [GMCnet] Bent bogie arm [message #245628 is a reply to message #245548] |
Sat, 29 March 2014 00:47 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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Gene,
I have a pair of those straight edges that I always bring to the work rallies. What I have found is if you get the pair of wheel hubs bent back in line so they are in a perfectly straight line, that is all usually need to do you. I do have a camber / caster gauge that mounts on the wheels. I have measured a couple of them for both toe (all the way across the coach with a tape measure) to see if the left and right pairs are parallel and they always have been correct once we did the straight edge thing. The camber has also been very close to 0. There has never been the need to change the shims on the bogie to frame mounting on the ones we have done. If you think about it, there is no reason for that relationship (Bogie mount to frame) to change unless someone has had the bogie assembly off of the coach.
I have only done a few of them. So my experience is limited.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Bent bogie arm [message #245648 is a reply to message #245628] |
Sat, 29 March 2014 08:11 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Senior Member |
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Ken,
Thanks for the info. I hoped a level would work since I have several metal ones. I'll get the ruler from Homer and check it out.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: [GMCnet] Bent bogie arm [message #245656 is a reply to message #245648] |
Sat, 29 March 2014 10:55 |
John Olson
Messages: 96
Registered: August 2013
Karma: 0
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Many thanks to all for this thread that I've been following intently.
Especially after recently noticing outer edge wear on our center passenger
tire.
Actually, at Montgomery, Larry Whisler pointed out the wear pattern to me
after I mentioned the seemingly excessive rear 'waggle' of our GMC. In 8
months of ownership, I've bumped curbs twice. PO may have also.
Now I have good information and specific procedures for
evaluating/confirming the actual cause and how to fix each in a few
different ways. Thanks for taking the time to post to help sorry cases like
me.
John Olson
76 Edgemonte
Chicago, IL (currently in Montgomery TX)
On Sat, Mar 29, 2014 at 8:11 AM, gene barrow <barrowgene@gmail.com> wrote:
>
>
> Ken,
> Thanks for the info. I hoped a level would work since I have several metal
> ones. I'll get the ruler from Homer and check it out.
> --
> Gene Barrow
> Lake Almanor, Ca.
> 1976 Palm Beach
> _______________________________________________
> GMCnet mailing list
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John Olson
76 Edgemonte
Fulltime traveler
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| Re: [GMCnet] Bent bogie arm [message #245664 is a reply to message #245648] |
Sat, 29 March 2014 11:41 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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The level might work. I am just thinking that it might be too thick to get in between the lug bolts.
Why not try the level and see if you can prove me wrong.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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However 3/4 Norwegian is pretty good 
