Home » Public Forums » GMCnet » [GMCnet] Blowout
| [GMCnet] Blowout [message #93023] |
Fri, 23 July 2010 20:33  |
Gary Berry
Messages: 1002
Registered: May 2005
Karma: -1
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Senior Member |
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Hey All;
So, I think I have more info on why my tire (7-year old Michelin)
blew out on my recent trip to the Oregon Coast. First of all, while I
was "parked" along the freeway replacing the blown tire, I did notice
that the tire seemed to be awfully hot, but I just contributed it to
the fact that it was 94 degrees out and the road was HOT. But as it
turns out, that might not have been the problem. When I put the spare
on, the tire wouldn't rotate forward. It would rotate to the rear, but
it would clunk when I tried to rotate it forward (this was on both of
the rear bogie tires). I did manage to drive it off of the freeway to
a tire place where I put the 2 new (well, two year old) Commercial
T/As on it. The brake guy said the brakes were too tight, so he
adjusted both of the rear bogie brakes (again, both rear bogie brakes
on each side were experiencing the same problem). Everything seemed
fine until I got outside of Winchester Bay, OR when my wife (who rides
in the back) started hearing a clicking sound. I pulled over, and the
pass rear bogie rim was warmer than the others (just by feeling them).
It was clunking again. I adjusted the brakes and continued on. After a
week of sitting in the cool of the Oregon coast (Bullards Beach and
Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
day or two, we pulled the rear wheels and tried to find out what was
going on in there. GeneF found that the parking brake lever on the
backing plate appeared to be engaged all of the time as compared to
the front bogie emergency brake lever that was disengaged. It appears
that the rear parking brake cable to the rear bogie on each side was
too short and was keeping the brake engaged. I don't know how it did
it, but even after re-adjusting the brakes, it would some how tighten
up to the point that the brakes were being engaged, thereby heating up
the rims and tires and eventually exploded the tire. We (or I so GeneF
doesn't have any liability in this) decided to detach the rear parking
brake cable from the rear bogie levers (I don't use the parking brake
anyway (we all know why)) and the trip home was uneventful. So, TSM
disc brakes are next with the line lock for parking. This setup might
even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
really have to meet this guy) for all of the help in figuring this
out.
--
Gary and Diana Berry
73 CL Stretch in Wa.
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| Re: [GMCnet] Blowout [message #93044 is a reply to message #93023] |
Sat, 24 July 2010 06:18  |
gmcrv1
Messages: 839
Registered: August 2007
Location: Memphis
Karma: -1
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Senior Member |
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Gary,
Good diagnostic work. Of course, you are in "Good (GREAT) Hands" with Gene
& Jim.
Tom Eckert N2VWN
72 Glacier
Oakland, TN
On Fri, Jul 23, 2010 at 8:33 PM, Gary Berry <duallycc@gmail.com> wrote:
> Hey All;
>
> So, I think I have more info on why my tire (7-year old Michelin)
> blew out on my recent trip to the Oregon Coast. First of all, while I
> was "parked" along the freeway replacing the blown tire, I did notice
> that the tire seemed to be awfully hot, but I just contributed it to
> the fact that it was 94 degrees out and the road was HOT. But as it
> turns out, that might not have been the problem. When I put the spare
> on, the tire wouldn't rotate forward. It would rotate to the rear, but
> it would clunk when I tried to rotate it forward (this was on both of
> the rear bogie tires). I did manage to drive it off of the freeway to
> a tire place where I put the 2 new (well, two year old) Commercial
> T/As on it. The brake guy said the brakes were too tight, so he
> adjusted both of the rear bogie brakes (again, both rear bogie brakes
> on each side were experiencing the same problem). Everything seemed
> fine until I got outside of Winchester Bay, OR when my wife (who rides
> in the back) started hearing a clicking sound. I pulled over, and the
> pass rear bogie rim was warmer than the others (just by feeling them).
> It was clunking again. I adjusted the brakes and continued on. After a
> week of sitting in the cool of the Oregon coast (Bullards Beach and
> Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
> day or two, we pulled the rear wheels and tried to find out what was
> going on in there. GeneF found that the parking brake lever on the
> backing plate appeared to be engaged all of the time as compared to
> the front bogie emergency brake lever that was disengaged. It appears
> that the rear parking brake cable to the rear bogie on each side was
> too short and was keeping the brake engaged. I don't know how it did
> it, but even after re-adjusting the brakes, it would some how tighten
> up to the point that the brakes were being engaged, thereby heating up
> the rims and tires and eventually exploded the tire. We (or I so GeneF
> doesn't have any liability in this) decided to detach the rear parking
> brake cable from the rear bogie levers (I don't use the parking brake
> anyway (we all know why)) and the trip home was uneventful. So, TSM
> disc brakes are next with the line lock for parking. This setup might
> even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
> to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
> really have to meet this guy) for all of the help in figuring this
> out.
>
> --
> Gary and Diana Berry
> 73 CL Stretch in Wa.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] Blowout [message #93045 is a reply to message #93044] |
Sat, 24 July 2010 06:22 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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thank you, that was nice
but as usual, I do my best work from a lawn chair ;>)
gary, however can bench press a GMC ;>)
thanks again
gene
> Good diagnostic work. Of course, you are in "Good (GREAT) Hands" with Gene
> & Jim.
>
> Tom Eckert N2VWN
> 72 Glacier
> Oakland, TN
>
> On Fri, Jul 23, 2010 at 8:33 PM, Gary Berry <duallycc@gmail.com> wrote:
>
> > Hey All;
> >
> > So, I think I have more info on why my tire (7-year old Michelin)
> > blew out on my recent trip to the Oregon Coast. First of all, while I
> > was "parked" along the freeway replacing the blown tire, I did notice
> > that the tire seemed to be awfully hot, but I just contributed it to
> > the fact that it was 94 degrees out and the road was HOT. But as it
> > turns out, that might not have been the problem. When I put the spare
> > on, the tire wouldn't rotate forward. It would rotate to the rear, but
> > it would clunk when I tried to rotate it forward (this was on both of
> > the rear bogie tires). I did manage to drive it off of the freeway to
> > a tire place where I put the 2 new (well, two year old) Commercial
> > T/As on it. The brake guy said the brakes were too tight, so he
> > adjusted both of the rear bogie brakes (again, both rear bogie brakes
> > on each side were experiencing the same problem). Everything seemed
> > fine until I got outside of Winchester Bay, OR when my wife (who rides
> > in the back) started hearing a clicking sound. I pulled over, and the
> > pass rear bogie rim was warmer than the others (just by feeling them).
> > It was clunking again. I adjusted the brakes and continued on. After a
> > week of sitting in the cool of the Oregon coast (Bullards Beach and
> > Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
> > day or two, we pulled the rear wheels and tried to find out what was
> > going on in there. GeneF found that the parking brake lever on the
> > backing plate appeared to be engaged all of the time as compared to
> > the front bogie emergency brake lever that was disengaged. It appears
> > that the rear parking brake cable to the rear bogie on each side was
> > too short and was keeping the brake engaged. I don't know how it did
> > it, but even after re-adjusting the brakes, it would some how tighten
> > up to the point that the brakes were being engaged, thereby heating up
> > the rims and tires and eventually exploded the tire. We (or I so GeneF
> > doesn't have any liability in this) decided to detach the rear parking
> > brake cable from the rear bogie levers (I don't use the parking brake
> > anyway (we all know why)) and the trip home was uneventful. So, TSM
> > disc brakes are next with the line lock for parking. This setup might
> > even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
> > to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
> > really have to meet this guy) for all of the help in figuring this
> > out.
> >
> > --
> > Gary and Diana Berry
> > 73 CL Stretch in Wa.
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Blowout [message #93046 is a reply to message #93045] |
Sat, 24 July 2010 06:34 |
gmcrv1
Messages: 839
Registered: August 2007
Location: Memphis
Karma: -1
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Senior Member |
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Does that lawn chair have a cup holder?
As you probably know, I have monitored this net for some time now, the
information one can glean from this site is immeasurable. One can learn a
lot hear - all you have to do is pay attention - and then CRS sets in...
Tom
On Sat, Jul 24, 2010 at 6:22 AM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
> thank you, that was nice
>
> but as usual, I do my best work from a lawn chair ;>)
> gary, however can bench press a GMC ;>)
>
> thanks again
> gene
>
>
>
> > Good diagnostic work. Of course, you are in "Good (GREAT) Hands" with
> Gene
> > & Jim.
> >
> > Tom Eckert N2VWN
> > 72 Glacier
> > Oakland, TN
> >
> > On Fri, Jul 23, 2010 at 8:33 PM, Gary Berry <duallycc@gmail.com> wrote:
> >
> > > Hey All;
> > >
> > > So, I think I have more info on why my tire (7-year old Michelin)
> > > blew out on my recent trip to the Oregon Coast. First of all, while I
> > > was "parked" along the freeway replacing the blown tire, I did notice
> > > that the tire seemed to be awfully hot, but I just contributed it to
> > > the fact that it was 94 degrees out and the road was HOT. But as it
> > > turns out, that might not have been the problem. When I put the spare
> > > on, the tire wouldn't rotate forward. It would rotate to the rear, but
> > > it would clunk when I tried to rotate it forward (this was on both of
> > > the rear bogie tires). I did manage to drive it off of the freeway to
> > > a tire place where I put the 2 new (well, two year old) Commercial
> > > T/As on it. The brake guy said the brakes were too tight, so he
> > > adjusted both of the rear bogie brakes (again, both rear bogie brakes
> > > on each side were experiencing the same problem). Everything seemed
> > > fine until I got outside of Winchester Bay, OR when my wife (who rides
> > > in the back) started hearing a clicking sound. I pulled over, and the
> > > pass rear bogie rim was warmer than the others (just by feeling them).
> > > It was clunking again. I adjusted the brakes and continued on. After a
> > > week of sitting in the cool of the Oregon coast (Bullards Beach and
> > > Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
> > > day or two, we pulled the rear wheels and tried to find out what was
> > > going on in there. GeneF found that the parking brake lever on the
> > > backing plate appeared to be engaged all of the time as compared to
> > > the front bogie emergency brake lever that was disengaged. It appears
> > > that the rear parking brake cable to the rear bogie on each side was
> > > too short and was keeping the brake engaged. I don't know how it did
> > > it, but even after re-adjusting the brakes, it would some how tighten
> > > up to the point that the brakes were being engaged, thereby heating up
> > > the rims and tires and eventually exploded the tire. We (or I so GeneF
> > > doesn't have any liability in this) decided to detach the rear parking
> > > brake cable from the rear bogie levers (I don't use the parking brake
> > > anyway (we all know why)) and the trip home was uneventful. So, TSM
> > > disc brakes are next with the line lock for parking. This setup might
> > > even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
> > > to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
> > > really have to meet this guy) for all of the help in figuring this
> > > out.
> > >
> > > --
> > > Gary and Diana Berry
> > > 73 CL Stretch in Wa.
> > > _______________________________________________
> > > GMCnet mailing list
> > > List Information and Subscription Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Blowout [message #93052 is a reply to message #93023] |
Sat, 24 July 2010 07:56 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
|
Senior Member |
|
|
Gary,
Is this on the stretch? If so, why has this just started? What was
the last thing worked on back there that could lead to this?
On Fri, Jul 23, 2010 at 6:33 PM, Gary Berry <duallycc@gmail.com> wrote:
> Hey All;
>
> So, I think I have more info on why my tire (7-year old Michelin)
> blew out on my recent trip to the Oregon Coast. First of all, while I
> was "parked" along the freeway replacing the blown tire, I did notice
> that the tire seemed to be awfully hot, but I just contributed it to
> the fact that it was 94 degrees out and the road was HOT. But as it
> turns out, that might not have been the problem. When I put the spare
> on, the tire wouldn't rotate forward. It would rotate to the rear, but
> it would clunk when I tried to rotate it forward (this was on both of
> the rear bogie tires). I did manage to drive it off of the freeway to
> a tire place where I put the 2 new (well, two year old) Commercial
> T/As on it. The brake guy said the brakes were too tight, so he
> adjusted both of the rear bogie brakes (again, both rear bogie brakes
> on each side were experiencing the same problem). Everything seemed
> fine until I got outside of Winchester Bay, OR when my wife (who rides
> in the back) started hearing a clicking sound. I pulled over, and the
> pass rear bogie rim was warmer than the others (just by feeling them).
> It was clunking again. I adjusted the brakes and continued on. After a
> week of sitting in the cool of the Oregon coast (Bullards Beach and
> Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
> day or two, we pulled the rear wheels and tried to find out what was
> going on in there. GeneF found that the parking brake lever on the
> backing plate appeared to be engaged all of the time as compared to
> the front bogie emergency brake lever that was disengaged. It appears
> that the rear parking brake cable to the rear bogie on each side was
> too short and was keeping the brake engaged. I don't know how it did
> it, but even after re-adjusting the brakes, it would some how tighten
> up to the point that the brakes were being engaged, thereby heating up
> the rims and tires and eventually exploded the tire. We (or I so GeneF
> doesn't have any liability in this) decided to detach the rear parking
> brake cable from the rear bogie levers (I don't use the parking brake
> anyway (we all know why)) and the trip home was uneventful. So, TSM
> disc brakes are next with the line lock for parking. This setup might
> even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
> to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
> really have to meet this guy) for all of the help in figuring this
> out.
>
> --
> Gary and Diana Berry
> 73 CL Stretch in Wa.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
_______________________________________________
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| Re: [GMCnet] Blowout [message #93055 is a reply to message #93052] |
Sat, 24 July 2010 09:49 |
Gary Berry
Messages: 1002
Registered: May 2005
Karma: -1
|
Senior Member |
|
|
Hey Steve;
Yep, it was on the Stretch. A while back I had checked the brakes
while repacking the rear wheel bearings and all of the brake shoes
looked good. On my 4 month "walkabout", as I was heading home over the
Grapevine in CA, I overheated the brakes and lost them at the bottom
of the grade. I pulled over and let them cool, but they were never the
same. When I pulled into Chico, CA, a fellow GMCer (Castleberry
(thanks again!)) helped me check out my brakes. I needed to replace
all 4 sets of shoes in the rear, as all four were cracked and almost
wore out. In all of Chico, I could only find 2 sets of shoes. I put
the good ones on the front bogies, and put the best of the cracked
ones on the rear. Never looked at the parking brake levers. When I got
home, I went ahead and replaced the two rear sets of shoes. Nothing
seemed to be out of order. They adjusted up nicely and everything
seemed good. This was in Feb. In April, we made a trip to Clearlake,
CA, and everything seemed to be good. This trip to the Oregon Coast is
where the problem showed up. I don't have any reason why the problem
took so long to manifest itself, and I still don't know why the brakes
tighten up over time (for instance why they tightened up between Salem
and Winchester Bay as I never backed up the whole time which is when I
would suspect the self-adjusters would tighten them up). We were
probably lucky that this didn't happen on the Clearlake trip
(mountains and all). The Stretch is backed onto the driveway now, and
I'm going to pull the brakes and bearings and check everything. Now
would be a good time to install the TSM disc brake setup, and I hope I
can get the various pieces and get them installed before Aug/Sep (yet
another trip to CA to visit the Grandkids (not necessarily the Kids).
On Sat, Jul 24, 2010 at 5:56 AM, Steven Ferguson <botiemad11@gmail.com> wrote:
> Gary,
> Is this on the stretch? If so, why has this just started? What was
> the last thing worked on back there that could lead to this?
>
--
Gary and Diana Berry
73 CL Stretch in Wa.
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| Re: [GMCnet] Blowout [message #93056 is a reply to message #93052] |
Sat, 24 July 2010 09:51 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
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I ran into a similar problem on my 78 Royale, the rear/rear ebrake cables
were tighter than the front/rear. It looks like the outer cable was too long
between the two bogies. I am like Gary, I seldom use the Ebrake so I just
backed off the turnbuckle till I had slackend all the cables a sufficient
amount to allow free rotation of all 4 rear drums. I had one broken end on
the spreader bar that energizes the forward shoe when applying the ebrake.
Upon close inspection of all rear brake parts, I replaced all the springs,
star wheels, and self adjusters. I also replaced all the flexible lines
w/teflon lined Stainless steel ones. Both the Jims have them qnd are well
worth the $. I didn't help Gary with his brakes, but told him what to look
out for when he does his. I kinda suspect that residual air trapped in the
rear brake cylinders and lines may expand when hot and complicate this
problem. Gary, thanks for the kind words.
Jim Hupy
Salem, Or
78 Royale 403
On Sat, Jul 24, 2010 at 5:56 AM, Steven Ferguson <botiemad11@gmail.com>wrote:
> Gary,
> Is this on the stretch? If so, why has this just started? What was
> the last thing worked on back there that could lead to this?
>
> On Fri, Jul 23, 2010 at 6:33 PM, Gary Berry <duallycc@gmail.com> wrote:
> > Hey All;
> >
> > So, I think I have more info on why my tire (7-year old Michelin)
> > blew out on my recent trip to the Oregon Coast. First of all, while I
> > was "parked" along the freeway replacing the blown tire, I did notice
> > that the tire seemed to be awfully hot, but I just contributed it to
> > the fact that it was 94 degrees out and the road was HOT. But as it
> > turns out, that might not have been the problem. When I put the spare
> > on, the tire wouldn't rotate forward. It would rotate to the rear, but
> > it would clunk when I tried to rotate it forward (this was on both of
> > the rear bogie tires). I did manage to drive it off of the freeway to
> > a tire place where I put the 2 new (well, two year old) Commercial
> > T/As on it. The brake guy said the brakes were too tight, so he
> > adjusted both of the rear bogie brakes (again, both rear bogie brakes
> > on each side were experiencing the same problem). Everything seemed
> > fine until I got outside of Winchester Bay, OR when my wife (who rides
> > in the back) started hearing a clicking sound. I pulled over, and the
> > pass rear bogie rim was warmer than the others (just by feeling them).
> > It was clunking again. I adjusted the brakes and continued on. After a
> > week of sitting in the cool of the Oregon coast (Bullards Beach and
> > Coos Bay), I made it to Florence, OR and Gene Fisher's place. After a
> > day or two, we pulled the rear wheels and tried to find out what was
> > going on in there. GeneF found that the parking brake lever on the
> > backing plate appeared to be engaged all of the time as compared to
> > the front bogie emergency brake lever that was disengaged. It appears
> > that the rear parking brake cable to the rear bogie on each side was
> > too short and was keeping the brake engaged. I don't know how it did
> > it, but even after re-adjusting the brakes, it would some how tighten
> > up to the point that the brakes were being engaged, thereby heating up
> > the rims and tires and eventually exploded the tire. We (or I so GeneF
> > doesn't have any liability in this) decided to detach the rear parking
> > brake cable from the rear bogie levers (I don't use the parking brake
> > anyway (we all know why)) and the trip home was uneventful. So, TSM
> > disc brakes are next with the line lock for parking. This setup might
> > even lead to a Reaction Arm Conversion if Mod-4 ever comes out. Thanks
> > to GeneF, Jim Hupy (you gotta meet this guy), and maybe Manny (you
> > really have to meet this guy) for all of the help in figuring this
> > out.
> >
> > --
> > Gary and Diana Berry
> > 73 CL Stretch in Wa.
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Steve Ferguson
> '76 EII
> Sierra Vista, AZ
> Urethane bushing source
> www.bdub.net/ferguson/
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Blowout [message #93060 is a reply to message #93055] |
Sat, 24 July 2010 10:49 |
tmaki
Messages: 200
Registered: September 2005
Karma: 0
|
Senior Member |
|
|
On 24 Jul 2010 at 7:49, Gary Berry wrote:
> I don't have any reason why the problem
> took so long to manifest itself, and I still don't know why the brakes
> tighten up over time (for instance why they tightened up between Salem
> and Winchester Bay as I never backed up the whole time which is when I
> would suspect the self-adjusters would tighten them up).
I know Gary and Steve and everybody that assisted with Gary's problem is way too smart for
this to happen, but in case anyone else happens to be tuned to this channel, there is
something to look out for.
The adjuster screws are left- and right-handed. Get 'em swapped side to side (perhaps when
batch cleaning or something like that and not paying real close attention), and they will tighten
with every brake application. It's an easy thing to do in the heat of battle. When you're upside
down and backwards with your eyes full of crud, your hands covered with grease, and a
screw, bolt or rock piercing your back, it is possible to adjust the brakes perfectly and not be
aware that the adjusting screws are "backwards".
Not that that happened in this case. Just sayin'...
Toby Maki
'73 Glacier 230
Riverside, CA
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| Re: [GMCnet] Blowout [message #93066 is a reply to message #93055] |
Sat, 24 July 2010 11:41 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Sounds dumb but having the shoes reversed can raise cain with the self
adjusters. I've seen a lot of people make this simple mistake,
including me.
On Sat, Jul 24, 2010 at 7:49 AM, Gary Berry <duallycc@gmail.com> wrote:
> Hey Steve;
>
> Yep, it was on the Stretch. A while back I had checked the brakes
> while repacking the rear wheel bearings and all of the brake shoes
> looked good. On my 4 month "walkabout", as I was heading home over the
> Grapevine in CA, I overheated the brakes and lost them at the bottom
> of the grade. I pulled over and let them cool, but they were never the
> same. When I pulled into Chico, CA, a fellow GMCer (Castleberry
> (thanks again!)) helped me check out my brakes. I needed to replace
> all 4 sets of shoes in the rear, as all four were cracked and almost
> wore out. In all of Chico, I could only find 2 sets of shoes. I put
> the good ones on the front bogies, and put the best of the cracked
> ones on the rear. Never looked at the parking brake levers. When I got
> home, I went ahead and replaced the two rear sets of shoes. Nothing
> seemed to be out of order. They adjusted up nicely and everything
> seemed good. This was in Feb. In April, we made a trip to Clearlake,
> CA, and everything seemed to be good. This trip to the Oregon Coast is
> where the problem showed up. I don't have any reason why the problem
> took so long to manifest itself, and I still don't know why the brakes
> tighten up over time (for instance why they tightened up between Salem
> and Winchester Bay as I never backed up the whole time which is when I
> would suspect the self-adjusters would tighten them up). We were
> probably lucky that this didn't happen on the Clearlake trip
> (mountains and all). The Stretch is backed onto the driveway now, and
> I'm going to pull the brakes and bearings and check everything. Now
> would be a good time to install the TSM disc brake setup, and I hope I
> can get the various pieces and get them installed before Aug/Sep (yet
> another trip to CA to visit the Grandkids (not necessarily the Kids).
>
> On Sat, Jul 24, 2010 at 5:56 AM, Steven Ferguson <botiemad11@gmail.com> wrote:
>> Gary,
>> Is this on the stretch? If so, why has this just started? What was
>> the last thing worked on back there that could lead to this?
>>
>
> --
> Gary and Diana Berry
> 73 CL Stretch in Wa.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] Blowout [message #93097 is a reply to message #93066] |
Sat, 24 July 2010 15:58 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Yup, been there, done that. Really felt stupid at the time. Ain't never
gonna do that again.
Jim Hupy
Salem, Or
78 Royale 403
On Sat, Jul 24, 2010 at 9:41 AM, Steven Ferguson <botiemad11@gmail.com>wrote:
> Sounds dumb but having the shoes reversed can raise cain with the self
> adjusters. I've seen a lot of people make this simple mistake,
> including me.
>
> On Sat, Jul 24, 2010 at 7:49 AM, Gary Berry <duallycc@gmail.com> wrote:
> > Hey Steve;
> >
> > Yep, it was on the Stretch. A while back I had checked the brakes
> > while repacking the rear wheel bearings and all of the brake shoes
> > looked good. On my 4 month "walkabout", as I was heading home over the
> > Grapevine in CA, I overheated the brakes and lost them at the bottom
> > of the grade. I pulled over and let them cool, but they were never the
> > same. When I pulled into Chico, CA, a fellow GMCer (Castleberry
> > (thanks again!)) helped me check out my brakes. I needed to replace
> > all 4 sets of shoes in the rear, as all four were cracked and almost
> > wore out. In all of Chico, I could only find 2 sets of shoes. I put
> > the good ones on the front bogies, and put the best of the cracked
> > ones on the rear. Never looked at the parking brake levers. When I got
> > home, I went ahead and replaced the two rear sets of shoes. Nothing
> > seemed to be out of order. They adjusted up nicely and everything
> > seemed good. This was in Feb. In April, we made a trip to Clearlake,
> > CA, and everything seemed to be good. This trip to the Oregon Coast is
> > where the problem showed up. I don't have any reason why the problem
> > took so long to manifest itself, and I still don't know why the brakes
> > tighten up over time (for instance why they tightened up between Salem
> > and Winchester Bay as I never backed up the whole time which is when I
> > would suspect the self-adjusters would tighten them up). We were
> > probably lucky that this didn't happen on the Clearlake trip
> > (mountains and all). The Stretch is backed onto the driveway now, and
> > I'm going to pull the brakes and bearings and check everything. Now
> > would be a good time to install the TSM disc brake setup, and I hope I
> > can get the various pieces and get them installed before Aug/Sep (yet
> > another trip to CA to visit the Grandkids (not necessarily the Kids).
> >
> > On Sat, Jul 24, 2010 at 5:56 AM, Steven Ferguson <botiemad11@gmail.com>
> wrote:
> >> Gary,
> >> Is this on the stretch? If so, why has this just started? What was
> >> the last thing worked on back there that could lead to this?
> >>
> >
> > --
> > Gary and Diana Berry
> > 73 CL Stretch in Wa.
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Steve Ferguson
> '76 EII
> Sierra Vista, AZ
> Urethane bushing source
> www.bdub.net/ferguson/
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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