Community Forums

stoltzdad · 12-21-2011, 08:36 PM

We have a 2007 Grand Juction 37' long gbw 18,000 which has blown 4 tires on passenger side. Tires has blown like a recap but the wear is even and no cupping. Has anyone had this problem or does anyone have any ideas as to what the problem could be.

Mr_D · 12-21-2011, 08:54 PM

Need more info.
What tires?
What is the rigs actual weight?
How many miles?

Mochisme · 12-21-2011, 08:59 PM

Quote:

Originally Posted by Mr_D

Need more info.
What tires?
What is the rigs actual weight?
How many miles?

And age of the tires?

Mr_D · 12-21-2011, 09:22 PM

Quote:

Originally Posted by Mochisme

And age of the tires?

Shouldn't be a problem on a 2007 rig, but still might be helpful.

FastEagle · 12-21-2011, 09:49 PM

Quote:

Originally Posted by stoltzdad

We have a 2007 Grand Juction 37' long gbw 18,000 which has blown 4 tires on passenger side. Tires has blown like a recap but the wear is even and no cupping. Has anyone had this problem or does anyone have any ideas as to what the problem could be.

What you have described is what happens when a tread separates from the carcass. Normally it's caused by chronic under inflation or a slow leak which allows the tire to heat-up internally, melt the cords and throw the tread. It can also be caused by overloading which cause the same heating condition.

FastEagle

RV Trailer Tires

mackpeteno · 12-21-2011, 10:11 PM

I had the same problem on my 93 Bounder.I bought it at 29,000 mile.Installed new tires,first thing.In the next 28,000 mile i had 5 blowouts on the rear.Two were on the alcan hwy,so i blamed them on the road.
I went to Brigstones and it stopped my tire trouble.Now have 89,000.
All were blowouts not flats.I have 56 yrs driving trucks.I know how to take care of tires.I did not figure out any problem.I am always loaded heavy.I change my own flats.
I think the main issue is the 19.5 tires.

Cat320 · 12-22-2011, 08:40 AM

ALL the problems I had with 5th wheel tires were cured when I got rid of the OEM Chinese tires.

mhs4771 · 12-22-2011, 09:25 AM

Ditto the China tires if that's what you have. But yes more info would help: 16" or 17.5", E, G, H or J rated? Figure a 2007 rig, most likely mfr'd in 2006, so tires 5 years old if they were brand new mfr date when installed (not likely) or the tires could be anywhere from 5 to 7 years old. With the weight sounds like you could use the 17.5s

RustyJC · 12-22-2011, 09:29 AM

If you look around here in the 5th Wheel forum, you'll find MANY threads dealing with tire failures, most often in the form of tread separations. Generally speaking, it seems that most 5th wheel manufacturers provide axles and tires that are marginal at best for the rated GVWR and GAWRs of the RVs. It's not uncommon to find tires on these RVs operating at 95% or more of their maximum load ratings. As far as I'm concerned, there's just not enough operating margin, and as others have said, the tires provided by the OEMs are of marginal quality as well.

I've had multiple failures on Goodyear Marathons and Goodyear G614 RSTs on various 5th wheels we've owned. I've only been able to get away from these failures by (1.) upgrading to an all-steel construction commercial trailer tire in one case and (2.) upgrading from a 16" to a larger 17.5" wheel diameter and the corresponding load range of the tires used to a much higher load capacity system in the second case (3750 lbs/tire OEM versus 4805 lbs/tire for the replacements).

Rusty

stoltzdad · 12-22-2011, 06:07 PM

Thanks and here is more information.
The last tire that blew was bought in July of this year. Miles would be between 10,000 to 15,000. Rig weight is about 18,000 lbs. Tires that came with rig were junk.

Mr_D · 12-22-2011, 06:35 PM

Quote:

Originally Posted by stoltzdad

Thanks and here is more information.
The last tire that blew was bought in July of this year. Miles would be between 10,000 to 15,000. Rig weight is about 18,000 lbs. Tires that came with rig were junk.

Still need more info!!
Brand/size/weight rating of tires. Just saying "junk" doesn't help us at all
ACTUAL WEIGHT, by tire position (not a guestimate of total weight)
Pressure being run in tires.

ralper · 12-22-2011, 06:55 PM

I certainly hope your rig has triple axels.
Weigh your rig. Buy American made tires, no more than 6 months old from date of manufacture, to carry 125% of the weight of the rig. Do not deduct the weight on the pin that is transferred to the truck. You will have no more problems!
If your rig weighs 18,000 Lbs then you need tires to carry at least 22,500 Lbs. Yes this seems like overkill but take the conservative route for long service life of the tires.

6 Michelin J rated 17.5" tires will carry 28,500 Lbs. at 110 PSI. You then can run a lower PSI as needed. This would what I would do. I have double axels carrying 15,000Lbs. and tires that are rated to 19,000 Lbs. They are the above Michelins.

Ray,IN · 12-22-2011, 09:57 PM

ST (special trailer) tires are usually loaded to their maximum on trailers. All but one ST tire manufacturer says to inflate them to sidewall maximum or the warranty is void.
I went through that 2 years ago, tires failing on our GJ 5er. I solved that by switching to Sailun, load range G tires. These are all-position commercial tires with a 75 MPH speed rating. If you prefer, that website has 7 different brands of load range G, 16" tires and rims to match.

amxpress · 12-23-2011, 04:38 AM

From East Bay Tire Company's site:

Quote:

Sailun Medium Commercial Tires are part of the Sigma Brand. They represent an economic alternative for our value - minded consumers

I couldn't find anyplace in USA that carries them. Don't want to go to Canada for tires, so looks like I'll stick with Michelin Ribs or BF Goodrich LT tires when it's time to replace mine.