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| [GMCnet] Another Tire Experience [message #246573] |
Sun, 06 April 2014 19:48  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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We wound up our visit to Sun'n'Fun yesterday and left after seeing all of
the air show performances at least once. Rain was forecast which could
have easily stranded us in "The Cow Pasture" for "the duration".
The first place we found to stop was a Sam's Club with "No Overnight
Camping" signs. So we continued another 30 miles or so to a Walmart with
no such signs.
My son reported that he seemed to have trouble with the balance on one rear
wheel, but he couldn't be sure which one and neither visual nor physical
examination identified it.
Today we made it about 50 miles before he reported that the problem was
getting worse, apparently on the right rear. In echelon formation I was
able to see the left rear hub cap in more of a blur than the others. After
another 25 miles or so it was obvious that the wheel was bouncing up and
down about an inch.
In a rest area, my HF torque wrench made quick work of putting the spare
on the ground. The tread bulge of the removed Goodyear Wrangler HT LRE was
very obvious. He was lucky it didn't blow. Turns out, he'd put new tires
on the front just before this trip because of a bulge on another of those 7
year old tires. Despite the near-original tread depth and absence of
obvious weather cracks, they're junk after very limited and gentle use.
I'll be replacing my 5 yo G-159's soon -- but I've managed to obliterate a
pretty good percentage of their tread with my wanderings.
Ken H.
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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] Another Tire Experience [message #246588 is a reply to message #246573] |
Sun, 06 April 2014 21:08  |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| Ken Henderson wrote on Sun, 06 April 2014 18:48 |
We wound up our visit to Sun'n'Fun yesterday and left after seeing all of
the air show performances at least once. Rain was forecast which could
have easily stranded us in "The Cow Pasture" for "the duration".
The first place we found to stop was a Sam's Club with "No Overnight
Camping" signs. So we continued another 30 miles or so to a Walmart with
no such signs.
My son reported that he seemed to have trouble with the balance on one rear
wheel, but he couldn't be sure which one and neither visual nor physical
examination identified it.
Today we made it about 50 miles before he reported that the problem was
getting worse, apparently on the right rear. In echelon formation I was
able to see the left rear hub cap in more of a blur than the others. After
another 25 miles or so it was obvious that the wheel was bouncing up and
down about an inch.
In a rest area, my HF torque wrench made quick work of putting the spare
on the ground. The tread bulge of the removed Goodyear Wrangler HT LRE was
very obvious. He was lucky it didn't blow. Turns out, he'd put new tires
on the front just before this trip because of a bulge on another of those 7
year old tires. Despite the near-original tread depth and absence of
obvious weather cracks, they're junk after very limited and gentle use.
I'll be replacing my 5 yo G-159's soon -- but I've managed to obliterate a
pretty good percentage of their tread with my wanderings.
Ken H.
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Ken--have you googled 159's ?
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Another Tire Experience [message #246599 is a reply to message #246588] |
Sun, 06 April 2014 21:43 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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WOW! And this dates back to near the time I first bought G-159's!:
http://www.safetyresearch.net/2010/06/29/goodyear-g159-tire-failures-on-rvs-finally-dragged-into-the-public-eye/
http://goo.gl/jI01GN
How do they get away with that in such a regulated, litigious society???
I'll bet that's one of the most common tires on GMC's.
My son's tires are Wrangler HT's -- I'm afraid to Google them since he's
disposing of them anyway.
Somehow, despite the probably 35,000 miles I've put on them, in the hottest
of weather and at road traffic speeds (I-75=78 mph), the only problems have
been two of them picking up nails almost into the sidewalls. Both
reparable only with plugs. The most recent one always had a slow leak, so
before Montgomery I replaced it with the also-plugged spare. What I'd
forgotten was that it was not the plug but the flat spot that caused me to
relegate it to the spare. It's been a noisy 2400 miles! :-)
Thanks for giving me one more reason to go ahead and trade tires -- but
what kind to trust...?
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Sun, Apr 6, 2014 at 9:08 PM, Bob de Kruyff wrote:
>
> Ken--have you googled 159's ?
> --
>
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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] Another Tire Experience [message #246600 is a reply to message #246599] |
Sun, 06 April 2014 21:49 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| Ken Henderson wrote on Sun, 06 April 2014 20:43 |
WOW! And this dates back to near the time I first bought G-159's!:
http://www.safetyresearch.net/2010/06/29/goodyear-g159-tire-failures-on-rvs-finally-dragged-into-the-public-eye/
http://goo.gl/jI01GN
How do they get away with that in such a regulated, litigious society???
I'll bet that's one of the most common tires on GMC's.
My son's tires are Wrangler HT's -- I'm afraid to Google them since he's
disposing of them anyway.
Somehow, despite the probably 35,000 miles I've put on them, in the hottest
of weather and at road traffic speeds (I-75=78 mph), the only problems have
been two of them picking up nails almost into the sidewalls. Both
reparable only with plugs. The most recent one always had a slow leak, so
before Montgomery I replaced it with the also-plugged spare. What I'd
forgotten was that it was not the plug but the flat spot that caused me to
relegate it to the spare. It's been a noisy 2400 miles! 
Thanks for giving me one more reason to go ahead and trade tires -- but
what kind to trust...?
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Sun, Apr 6, 2014 at 9:08 PM, Bob de Kruyff wrote:
>
> Ken--have you googled 159's ?
> --
>
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Thought you may be amazed. Sometimes I'm not sure if I am in the rental business or the tire business.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Another Tire Experience [message #246607 is a reply to message #246573] |
Mon, 07 April 2014 02:46 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
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Senior Member |
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I wonder if there were any changes to to the tire when they raised the speed rating? It's hard to know who to trust. I think my Firestone Transforce is a proven tire on these coaches, which is one of the reasons I went with it. Maybe we should all be doing more research beyond price.
I am guessing that the GMC is one of the lighter or lightest class A motorhomes and that weight would also make a difference.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
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| Re: [GMCnet] Another Tire Experience [message #246619 is a reply to message #246607] |
Mon, 07 April 2014 07:21 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Steve,
My last previous set were Firestone Transforces. They seemed "harder" than
others I've used, and I had one of them inexplicably fail pretty early
during their life -- fortunately at low speed without collateral damage. I
won't be using them again.
My suspicion is that the GMC is the ONLY true class A running 225-75R16
tires. If we can lend any credence to the Cinnabar tests for GMC, the GMC
puts pretty extreme loads on its tires. At least the early radials
apparently had trouble on it (but they did on others too, as everyone tried
to catch up with Michelin).
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Mon, Apr 7, 2014 at 2:46 AM, Steve Adams wrote:
>
>
> I wonder if there were any changes to to the tire when they raised the
> speed rating? It's hard to know who to trust. I think my Firestone
> Transforce is a proven tire on these coaches, which is one of the reasons I
> went with it. Maybe we should all be doing more research beyond price.
>
> I am guessing that the GMC is one of the lighter or lightest class A
> motorhomes and that weight would also make a difference.
>
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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] Another Tire Experience [message #246643 is a reply to message #246573] |
Mon, 07 April 2014 10:12 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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Ken,
I have had the same type of tread separation on two less than five year old Kumhos and one less than four year old BFG Commercial TA. All were 225/75R16 LR-E tires. In no case did the tire actually come apart and cause any damage to the coach. They just developed a bubble in the tread.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Another Tire Experience [message #246646 is a reply to message #246619] |
Mon, 07 April 2014 10:47 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| Ken Henderson wrote on Mon, 07 April 2014 05:21 |
If we can lend any credence to the Cinnabar tests for GMC, the GMC
puts pretty extreme loads on its tires. At least the early radials
apparently had trouble on it (but they did on others too, as everyone tried
to catch up with Michelin).
|
Another thought just flashed through my mind here. Has anyone ever tried trailer service tires on the mid and rear wheels? They are made for the type of loads the 'tandem' suspension puts on them. I would guess they would stand up to the 'scrubbing' action a GMC puts them through as it makes a turn. I don't know enough about them to know the speed rating, but I know they are available in an E load rating, and people tow tandem axle trailers at the speed limit all the time. I suspect they would ride harder than LT tires though.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Another Tire Experience [message #246654 is a reply to message #246599] |
Mon, 07 April 2014 12:09 |
rjw
Messages: 697
Registered: September 2005
Karma: 4
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Senior Member |
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| Ken Henderson wrote on Sun, 06 April 2014 22:43 |
WOW! And this dates back to near the time I first bought G-159's!:
http://www.safetyresearch.net/2010/06/29/goodyear-g159-tire-failures-on-rvs-finally-dragged-into-the-public-eye/
http://goo.gl/jI01GN
How do they get away with that in such a regulated, litigious society???
I'll bet that's one of the most common tires on GMC's.
My son's tires are Wrangler HT's -- I'm afraid to Google them since he's
disposing of them anyway.
Somehow, despite the probably 35,000 miles I've put on them, in the hottest
of weather and at road traffic speeds (I-75=78 mph), the only problems have
been two of them picking up nails almost into the sidewalls. Both
reparable only with plugs. The most recent one always had a slow leak, so
before Montgomery I replaced it with the also-plugged spare. What I'd
forgotten was that it was not the plug but the flat spot that caused me to
relegate it to the spare. It's been a noisy 2400 miles!
Thanks for giving me one more reason to go ahead and trade tires -- but what kind to trust...?
Ken H.
|
And to think my GMC came with G159s courtesy of the PO back in 1998. Of course I had no idea they were limited to under 75. I used to drive that fast and faster back when gas was cheaper and I was younger. This is another reason to have TPMS as mentioned in the article "Excessive heat in a tire will break down its internal components over time, and is a leading cause of tread belt detachment failures, as typified by the Schalmo crash".
I replaced the G159s with Michelin XBS RIB LT225/75R16 tires in 2000 and ran them 7 years and 34,272 miles without incident. They provided a ride about as as bad as the G159s. Thanks Wes C for the bad advice.
7 years later they were replaced with the current tires, BF Goodrich Commercial T/A. There was a dramatic improvement in ride and handling. However, I did have a blowout at highway speeds on the way to a GMCMI rally when they were just 3 years old.
I have almost 7 years and 38,889 miles on the Goodrich tires and will probably go with another set this year. I also have TPMS which gives me some piece of mind.
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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| Re: [GMCnet] Another Tire Experience [message #246680 is a reply to message #246646] |
Mon, 07 April 2014 16:05 |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
Karma: 2
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Senior Member |
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| Carl S. wrote on Mon, 07 April 2014 08:47 |
| Ken Henderson wrote on Mon, 07 April 2014 05:21 |
If we can lend any credence to the Cinnabar tests for GMC, the GMC
puts pretty extreme loads on its tires. At least the early radials
apparently had trouble on it (but they did on others too, as everyone tried
to catch up with Michelin).
|
Another thought just flashed through my mind here. Has anyone ever tried trailer service tires on the mid and rear wheels? They are made for the type of loads the 'tandem' suspension puts on them. I would guess they would stand up to the 'scrubbing' action a GMC puts them through as it makes a turn. I don't know enough about them to know the speed rating, but I know they are available in an E load rating, and people tow tandem axle trailers at the speed limit all the time. I suspect they would ride harder than LT tires though.
|
When my Michelins came apart in Ohio a couple of years ago I installed 6 local branded tires that they told me they used on big trailers all the time. I have not noticed any difference in the ride but I think the handling is affected a little more than with the Michelins. I don't know what kind of tires to buy next because they all seem to have failures.
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: [GMCnet] Another Tire Experience [message #246723 is a reply to message #246619] |
Mon, 07 April 2014 21:14 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| Ken Henderson wrote on Mon, 07 April 2014 06:21 |
Steve,
My last previous set were Firestone Transforces. They seemed "harder" than
others I've used, and I had one of them inexplicably fail pretty early
during their life -- fortunately at low speed without collateral damage. I
won't be using them again.
My suspicion is that the GMC is the ONLY true class A running 225-75R16
tires. If we can lend any credence to the Cinnabar tests for GMC, the GMC
puts pretty extreme loads on its tires. At least the early radials
apparently had trouble on it (but they did on others too, as everyone tried
to catch up with Michelin).
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Mon, Apr 7, 2014 at 2:46 AM, Steve Adams wrote:
>
>
> I wonder if there were any changes to to the tire when they raised the
> speed rating? It's hard to know who to trust. I think my Firestone
> Transforce is a proven tire on these coaches, which is one of the reasons I
> went with it. Maybe we should all be doing more research beyond price.
>
> I am guessing that the GMC is one of the lighter or lightest class A
> motorhomes and that weight would also make a difference.
>
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The LT 225/75 R16 is a very common size. Our 10 ft thru 20 ft trucks use them and those truck ratings are up to 14500 GVWR. All brands will have occasional issues but with several hundred thousand tires in this size on the road, I pretty well know who is who.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Another Tire Experience [message #246727 is a reply to message #246573] |
Mon, 07 April 2014 21:24 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
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Senior Member |
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Ken,
The Firestones are noticeably harder than my previous set of house brand tires. The previous set was load range D but inflated to the same pressure as my new load range E. 65 in the front and 60 rear. The D's seemed really soft.
I read that in the GM testing that people could not tell the ride difference between the D and E tires. Hard for me to believe.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
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| Re: [GMCnet] Another Tire Experience [message #246729 is a reply to message #246728] |
Mon, 07 April 2014 21:30 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| k2gkk wrote on Mon, 07 April 2014 20:20 |
Perchance, would you deign to share your knowledge on "who is who," Bob?
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~~ k2gkk + hotmail dot com ~~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> To: gmclist@temp.gmcnet.org
> From: NEXT2POOL@AOL.COM
> Date: Mon, 7 Apr 2014 21:14:26 -0500
> Subject: Re: [GMCnet] Another Tire Experience
>
> The LT 225/75 R16 is a very common size. Our 10 ft thru 20 ft trucks use them and those truck ratings are up to 14500 GVWR. All brands will have occasional issues but with several hundred thousand tires in this size on the road, I pretty well know who is who.
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
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I almost did but I'm in the middle of litigation and need to tame it down a bit. I will say that General, Uniroyal, Goodrich, Michelin (except for the recent recall in this size) are all good choices.
Bob de Kruyff
78 Eleganza
Chandler, AZ
[Updated on: Mon, 07 April 2014 21:31] Report message to a moderator |
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| Re: [GMCnet] Another Tire Experience [message #246760 is a reply to message #246681] |
Tue, 08 April 2014 09:48 |
rjw
Messages: 697
Registered: September 2005
Karma: 4
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Senior Member |
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| armandminnie wrote on Mon, 07 April 2014 17:08 |
| Quote: |
I did have a blowout at highway speeds on the way to a GMCMI rally when they were just 3 years old.
I have almost 7 years and 38,889 miles on the Goodrich tires and will probably go with another set this year. I also have TPMS which gives me some piece of mind.
|
Was it a blowout or a separation?
|
I called it a blowout. It happened less than 24 hours after I finished installing a new engine and transmission and was on the way to the GMCMI rally in DuQuoin. When I heard the very loud bang, the first thought was I had blown up my new engine. I was relieved that it was only a tire that had blown up and not the motor.
http://www.palmbeachgmc.com/images/blow1.jpg
http://www.palmbeachgmc.com/images/blow2.jpg
I had checked the tire pressures previous to leaving. Obviously something happened while driving. The location was driver side intermediate. If I had hit something, it seems like something would have happened to the rear tire. There was no damage to the coach other than the tire. I was lucky.
I don't like hearing things go bang when I'm driving my GMC. This incident got me thinking about tire pressure/temperature monitoring.
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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| Re: [GMCnet] Another Tire Experience [message #246763 is a reply to message #246760] |
Tue, 08 April 2014 10:25 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| rjw wrote on Tue, 08 April 2014 08:48 |
| armandminnie wrote on Mon, 07 April 2014 17:08 |
| Quote: |
I did have a blowout at highway speeds on the way to a GMCMI rally when they were just 3 years old.
I have almost 7 years and 38,889 miles on the Goodrich tires and will probably go with another set this year. I also have TPMS which gives me some piece of mind.
|
Was it a blowout or a separation?
|
I called it a blowout. It happened less than 24 hours after I finished installing a new engine and transmission and was on the way to the GMCMI rally in DuQuoin. When I heard the very loud bang, the first thought was I had blown up my new engine. I was relieved that it was only a tire that had blown up and not the motor.
http://www.palmbeachgmc.com/images/blow1.jpg
http://www.palmbeachgmc.com/images/blow2.jpg
I had checked the tire pressures previous to leaving. Obviously something happened while driving. The location was driver side intermediate. If I had hit something, it seems like something would have happened to the rear tire. There was no damage to the coach other than the tire. I was lucky.
I don't like hearing things go bang when I'm driving my GMC. This incident got me thinking about tire pressure/temperature monitoring.
|
It's very difficult to determine the exact cause of an incident like that especially with just a photograph, but it looks like a road hazard at first glance.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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