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Re: tire pressure

Reply #26 –
Yahoo Message Number: 13131
Dave, sorry it has taken a while for me to respond to your thoughts.
I was out motorhoming for the Thanksgiving holiday. I love the South.

I don't disagree with your suggestion entirely (pun intended).
However, tire ratings include a dual spacing spec which is based upon tire characteristics, including bulge. The offset of the wheels must match the dual spacing requirements. The tire manufacturer assumes that you follow that spec so they, in my view, are not doing a CYA.
The CYA is the presentation of the dual spacing spec.
I am not an automotive engineer but I believe there is science behind the differing weight carrying ability of a single wheel and tire each wheel and tire of a dual setup. I suspect that the primary issue is heat.

George in Birmingham, AL
Allure 31038
George in Birmingham
2003 Magna 6298

tire pressure

Reply #27 –
Yahoo Message Number: 46595
I also bought a tire inflation device from Les Swab in Junction City. It has been advertized in the Destination Magazine. It attaches to the air fitting in the forward bay bin on the left side and stays there. It boost the air pressure to 160psi. It comes with a 25ft coiled hose. It is a very small, compact thing that works very fast. It cost about $400. But it works great. I now think how would you ever live without it.
Lee 07 Intrigue 12099

Re: tire pressure

Reply #28 –
Yahoo Message Number: 46597
I agree on tire booster, valve stem was my problem and very hard to find. Need tire guy who can submerge whole tire. I used Pete's in Santa Ana.

Sincerely,

Jim Spivey

Re: tire pressure

Reply #29 –
Yahoo Message Number: 46612
Wow, this is could be confusing -
Lee

07 Intrigue 12099
Lee

07 Intrigue 12153
--

Lee Zaborowski
Intrigue #12153

tire pressure

Reply #31 –
Yahoo Message Number: 59124
I have a 45' with tag axle and my question is with 110 psi in rear tires and tag axle tires they build up to 127 psi in only 100 miles. So should I let air out to something less than 110 or put more air in and hope not to have as much build up? This build up is based on 70 degree days and the tires say that the air temp in them is 85. Thanks

Re: tire pressure

Reply #32 –
Yahoo Message Number: 59125
Roger, well to start, I do not recommend letting air our, adding later, letting air our, adding later, etc.
Those numbers do not make sense. The Gas Laws tell us you will get about +2 psi for every 10 degree hotter. If your tires are at 110 psi at 70 degrees, then at 127 psi, or +17 psi, the temperature should be about 85 degrees higher or 155 degrees.
Maybe your readout is saying your tire temperature CHANGE is 85 degree, not 85 degrees higher?? The air temp in the tires has to be higher than 85.

--

Lee Zaborowski
07 Intrigue 12153

tire pressure

Reply #33 –
Yahoo Message Number: 74487
I have a 2008 CC Intiruge 530 with 315/80/22.5 I run 120 psi in the steering and 110 in duals and 100 in tags because that is what the original owner was running is that right or should I change

Re: tire pressure

Reply #34 –
Yahoo Message Number: 74488
Twotendriver, a name would be nice.

Here is what I do.

My 2007, Intrigue 530 with a Cat engine weighs 43,200 lbs. I have the 315/80/22.5 on the front, 295/80/22.5 on the rear.
The minimum PSI for my coach/weights (tire manufacturer tables) is 95 front, 85 dual/tag. I add 10 PSI for safety . . . so run 105 fronts, 95 rears. No problems, smooth ride.
You should get your coach weighed - 6 point and consult the tire tables for minimum pressure, then add 5-10 PSI for a safety margin.
As others have said . . . the higher pressures are CYA pressures from the decal by the driver's seat.

--

Lee (leozbrowski@...) 2007 Country Coach Intrigue 12153
CAT C-13

Re: tire pressure

Reply #35 –
Yahoo Message Number: 74494
I have an 07 Intrigue 530 12162. I have the same tires. C13 Cat and when I bought it and it only had sheets a couple of pillows some toilet paper, toilet chemical and a dump kit in it, it weighed 49060 with a full fuel tank and 1/2 tank of water empty gray and black tanks.
I have since added a few blankets, towels, small tool kit, folding aluminum ladder, 6 aluminum folding chairs, two lightweight folding plastic tables, small ice chest, case of water, case of wine, dishes, glasses, silverware, clothes and some playing cards and now I go through the scale at 50,500 pounds or 55,400 when I am towing.
I read the sticker on the linen cabinet that says GVWR 47,600 and GCWR 57,600 but I don't think completely empty and bone dry I could make 47,600.
The sticker calls for 125 front and 105 all the way around in the rear and according to the michelin chart and the weight on each axle and tire, I could run 120 front and 100 rear but I just run 125 and 105
I wonder why mine is so much heavier than yours Lee and what or GVWR and GCWR is.

Do you have the heated tile floors? I am not sure about model numbers but I thought the 530 meant something close to that in horsepower (525 HP C13).
Is yours 45'
Mark

07 Intrigue 530 12162
C13 Cat Allison
06 Rubicon LJ

Re: tire pressure

Reply #36 –
Yahoo Message Number: 74496
Before CC changed and went to the 16,500 lb front end IFS, the carrying capacity was less than 2300 lbs, but I thought that was with a full tank of water and full of fuel. We had a bitch session at one of the CC rallies and Doug Rutherford was the moderator. When this subject was brought up there was a lot of moaning and groaning. But by the end of the rally we were informed the new front end would be in production soon. Look on the inside of the doors over the bathroom sinks and all the weight and capacity info will be printed on a form. There should also be a sheet with all the serial numbers.
TWI 2004 Intrigue 11731. 42' Carrying capacity wet, 9600 LBS. Dry my coach weighs 33,250. That's what I pay taxes on in Texas.

Re: tire pressure

Reply #37 –
Yahoo Message Number: 74497
I mentioned weight because that is what determines the PSI needed.

Length is irrelevant to PSI needed, but mine is 40 feet.

Lee

Re: tire pressure

Reply #38 –
Yahoo Message Number: 74499
The third paragraph of mine are the numbers from the sticker in the cabinet. My point was that I was already 3,000 overweight when I bought it and it was empty.

Re: tire pressure

Reply #39 –
Yahoo Message Number: 74506
Hello All

This was actually my coach prior to being purchased by twotendriver. The pressures that I used were based upon actual individual wheel weights (weighed at Buckhorn at the rally two years ago), the Michelin pressure tables and a 5 psi cushion. These pressure requirements could obviously change based upon the new owner's loading of the coach - therefore I would recommend that the unit be re-weighed because of the new owner's loading and then determine the proper pressures using the Michelin tables and a 5 psi cushion if so desired.

Kindest Regards,
Brad Burgess
Now an SOB

Re: tire pressure

Reply #40 –
Yahoo Message Number: 74508
I am sorry I didn't read your post carefully. Your GVWR is the maximum allowed weight with your coach loaded. I would imagine your coach dry should weigh about 43,300 lbs. That's with no water, no fuel, no passengers. Wet weight should be about 44,200. When my coach was new I split weighed the coach one weekend in Oregon as they leave the truck scales on, un attended and set the tire pressures accordingly. When we got home and we loaded the coach completely and I had added my own basement trays from Slim Slider, for our first trip we weighed 2000 lbs more. I tried weighing the coach 3 different places and one set of CAT scales read 3,000 lbs higher than the New Mexico scales, and another set of CAT scales. So, I re-inflated my tires accordingly, had the front shocks adjusted and we were off. I hope your issue is just a poorly calibrated set of scales. Now that I've added the weight of a new copper/brass radiator and sealed batteries, I need to split weigh the coach. Before I was only heavier on the DS by 150 lbs. I guess I need to personally loose weight.
There's are issues we haven't discussed though. Federal and most state highways regulations don't allow anyone axle to exceed 20,000 lbs. I don't know How thats going to effect you as you travel across the country, but I read here that some Federal highways and toll roads have automated scales and that you will charged accordingly, or else relegated to other roads and or ticketed. In Texas if the dry weight of your RV is over 26,000 lbs, you have to have a semi-commercial class B license as do Bus drivers and Firemen. TWI 2004 intrigue 11731

TWI 2004 Intrigue 11731
 

Re: tire pressure

Reply #41 –
Yahoo Message Number: 74516
According to the CHP I am limited to Interstate Highways because of Length and Weight and I am supposed to have a permit to actually drive it into town and park it at storage. They also said that I am supposed to have a NonCommercial Class A license. (I had to make an appointment with the CHP and have them inspect the vehicle and VIN before I could register it in California).
I have been to 3 different DMV's offices here in California to get a Non Commercial Class A license. 2 Offices told me I didn't need it for a motorhome and didn't know what test to give me (after about 3 hours in the office while they were arguing and discussing it internally, I left). The other office insisted that I needed to take a driving test with a regular truck and trailer. I had to be able to back the trailer in 3 different ways, drop the trailer, do the pre inspection and a bunch of other things. I don't have a regular truck and trailer.
I am going to move to Vegas soon and it is easy there, you walk in take the written test for Non-Comm A, and a short drive in your coach that has a short run on I-15 and three surface streets and you are done. Some guys I know retired to Vegas and got their's there.
When I went through the scale empty except for fuel and a 1/4 tank of water my drive axle was already 20,760. It is close to 22000 now and been real close to that the last three times.
That is kind of why I was asking some questions about Heated tile and Length trying to figure out why mine is so much heavier. I know that it originally came with 1 Flat Screen TV that raises up out of the cabinet in the main living area but the bedroom had an old style tube type TV that is now a Flat Screen which should have saved some weight. 2 drawers and 4 cabinets in the bedroom are empty. one drawer and one shelf in the bathroom is empty. There is only 1 gallon of toilet chemical and toilet paper in the toilet area. I only have two aluminum pans. I don't have a lot of heavy stuff loaded in it.

Mark

07 Intrigue 530 45'
C13 Cat Allison
06 Rubicon LJ