First time post: tire issues inside pass. rear
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โMay-16-2013 01:23 PM
I have on 03 4winds 31p class c MH ,2 years ago I purchased 7 new off brand tires (Mastercraft) I have now had 3 damaged tires in the inside pass. rear The tire dose not go flat it delaminates part of it. What to do now
1. larger load range tire
2. name brand tire
3. check for any thing causing damage to tire. (breaks replaced May 03)
Specs.
I am over weight
frt. axle 3780 lb - rv rate 4600 lb
rear axel 10300 lb - rv rate 9450 lb
trailer axel 5720 lb - trailer rate 7000 lb
I pull a 20 foot enclosed trailer
frt tire pressure 65lb
rear tire pressure 70-80lb
trailer tire pressure 50 lb
Curt weight distribution hitch
Question;
Is break drag enough heat to dissipate threw the rim to the tire to over inflate the tire?
Is 10 lb + - an average range for tire pressure during travel.
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โMay-17-2013 03:26 AM
RvnStreib wrote:
Question;
Is break drag enough heat to dissipate threw the rim to the tire to over inflate the tire?
Is 10 lb + - an average range for tire pressure during travel.
My BIL has a 2003 29' Bigfoot. That he tows a toad with. He was having blowouts in the rear. Finally figured out that reason was using to much braking on down hill/mountain runs. This caused a lot of heat. He now uses the transmission to control these downhill runs speed. No more blowouts.
2012 Chevy Captiva Toad SOLD
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โMay-16-2013 04:25 PM
You are 1000lbs over weight on the rears and running way low on pressure. Trying to pull 7000lbs so drop a grand on your loaded weight, drop 2K on the trailer and buy some good tires.
2017 Grand Design Reflection 303 RLS
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โMay-16-2013 04:05 PM
A larger size in any brand of any given load range will be rated for more weight than the next size down. The stock size on most E450 Class C motorhomes can be changed out for the next size up and you gain enough higher weight carrying capacity to solve - or definitely help solve - your tire reliability problem.
Most owners - and tire shops - do not consider this when replacing tires on a Class C motorhome ... they just go with the "stock" size.
That being said, there is no substitute for high quality in Class C tires regardless of the size and load range considerations. Don't skip on tires to save money ... get the best you can possibly squeek out the money for ... even if you have to charge them and pay for them over time.
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โMay-16-2013 03:12 PM
Mich F wrote:
Assuming you're on an E450,your GCWR for the van might be 20,000, but I doubt Four Winds rates that motor home, which I imagine has a fairly long frame extension, for more than 5,000# towing, and probably somewhere around 350# - 500# tongue weight.
Exactly right- that unit is rated for 5,000 pounds maximum tow. The trailer in the O.P. is 2000 pounds over that, and the moho is overweight, too.
Sounds like that particular wheel position is just the "canary in the mine shaft" here- it probably doesn't matter what tires go on with that kind of overloading of the rig itself. Everything on it (axles, shocks, what have you) is designed for a specific load limit.
It seems to me that unless the weight comes down, going up in load range on the tires will only result in a DIFFERENT part of the rig collapsing under the load.
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โMay-16-2013 02:36 PM
Yes the trailer has breaks on both axles.
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โMay-16-2013 02:34 PM
RvnStreib wrote:
sh410
Any recommendations on where to get a four corner scale done. The last scale I went to was an axle scale only.(Mid West preferably)
You can use a Cat scale with only driver side on the scale and front and rear weights. Subtract those weight from the axle weights to get the passenger side weights.
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โMay-16-2013 02:28 PM
2016 Mazda CX5 on Acme tow dolly- 4 trips ~ 5,800 mi
Now 2017 RWD F150 with a drive shaft disconnect
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โMay-16-2013 02:19 PM
Got Brakes on that heavy trailer? The coach brakes are rated for max Vehicle weight of Coach alone, not the Combined Coach + Trailer weight.
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB
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โMay-16-2013 02:17 PM
When you run off the road on that side which is easy to do the inside tire is carrying All of the weight. That is quite a load.
Get the proper load range tire. I put in a little extra air in the rears for just that reason.
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โMay-16-2013 02:05 PM
Any recommendations on where to get a four corner scale done. The last scale I went to was an axle scale only.(Mid West preferably)
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โMay-16-2013 01:55 PM
My GCWR is 20,000 lb and I am at 19,540 lb
With this much constant weight are load rang E tires enough?
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โMay-16-2013 01:45 PM
Maxing tire pressure (label on the tires) on rear duals may help--use same pressure on both sets.
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โMay-16-2013 01:37 PM
WD8CBT since 1976
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I started with nothing and I still have most of it left
I never fail, I just succeed in finding out what doesn't work
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โMay-16-2013 01:36 PM
RvnStreib wrote:
This is my first time posting and I need help.
I have on 03 4winds 31p class c MH ,2 years ago I purchased 7 new off brand tires (Mastercraft) I have now had 3 damaged tires in the inside pass. rear The tire dose not go flat it delaminates part of it. What to do now
1. larger load range tire
2. name brand tire
3. check for any thing causing damage to tire. (breaks replaced May 03)
Specs.
I am over weight
frt. axle 3780 lb - rv rate 4600 lb
rear axel 10300 lb - rv rate 9450 lb
trailer axel 5720 lb - trailer rate 7000 lb
So, to recap, you are running on cheap tires while overweight and towing a 7,000# trailer.
First, I would make sure that you do not have any specific problem with the RRI position. For example, a grabbing brake, wheel bearing issue, axle problem, etc., since it is indeed a little strange to have three tires in the same position let go in the same fashion in two years.
Second, get a set of quality tires with the proper load rating.
And third, you should really have a solid heart to heart conversation with yourself, analyzing your operation, and deciding whether what you are doing is the safest course of action for both yourself and other people on the road. I don't believe that a 30' Fourwinds has that amount of towing capacity. Running that far overweight on garbage tires is a very risky proposition. I think you are very lucky to have only had a couple token blowouts. Consider those "warning shots" that something is seriously wrong.