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Tire Pressure 2004 Inspire

Yahoo Message Number: 69766
Can some one tell me where I can find out on my RV where the tire pressure information is for my front and back tires? I tried to do a search but was not able to find it.
Thank you

Ilene 2004 Inspire 51071

Re: Tire Pressure 2004 Inspire

Reply #1 –
Yahoo Message Number: 69768
On my coach, it is on a sticker on the wall below and slightly behind the driver side window (about even with the back of the driver seat).

John and Linda Walton
'06 Inspire DaVinci 51905

Re: Tire Pressure 2004 Inspire

Reply #2 –
Yahoo Message Number: 69769
Sorry - hit send too quick - on my coach it is 95# for the rear and 120# for the front. Not sure if it is the same for the 2004 (it may also be different for a 36' coach vs. a 40' coach - the DaVinci is a 40').

Regards,

John and Linda Walton
'06 Inspire DaVinci 51905

Re: Tire Pressure 2004 Inspire

Reply #3 –
Yahoo Message Number: 69770

Thank you, mine is located more to the front of the coach. I had to move the drivers seat all the way back and crawl under the steering wheel with a flash light to locate it. Front 120 and rear 100. With out your help I would have never found it.
Ilene 2004 Inspire51071

Re: Tire Pressure 2004 Inspire

Reply #4 –
Yahoo Message Number: 69771
The only correct way to set your tire pressure is to load the coach with fuel, water, stuff, and people as you plan to travel. Then weigh the coach, preferably at each wheel position, minimum each axle.
Now get the tire pressure chart from the tire manufacturer of the tires on your coach (you can usualy find this on line). Find your tires and your coach weight. The chart will give you the proper pressure for the front (single) and the rear (dual). Anything else is a wild guess.
There is a web site rvsef.com I believe that will explain all this in more detail.

Bob Wexler
SOB

Re: Tire Pressure 2004 Inspire

Reply #5 –
Yahoo Message Number: 69772

I think I will post it in a more accessible place.
Ilene 2004 Inspire 51071

Re: Tire Pressure 2004 Inspire

Reply #6 –
Yahoo Message Number: 69774
Ilene

Look for a placard on the sidewall of the coach alongside the driver's seat. I have weighed my coach and the numbers on the placard were good for me.

Dan 2006 Allure 31348

Re: Tire Pressure 2004 Inspire

Reply #7 –
Yahoo Message Number: 69775
Ilene,

on a sticker on the lower part of the sidewall below the driver side window;

Hermann

2007 Inspire #52006

(after Inspire 2004 and Inspire 2006)

2011/3/30 Ilene i_rf2173@...>

Re: Tire Pressure 2004 Inspire

Reply #8 –
Yahoo Message Number: 69776
I run 120 in front and 110 in back - Toyo's M154's. I have a 40' Da Vinci.

Steve 04' Inspire 51168

Re: Tire Pressure 2004 Inspire

Reply #9 –
Yahoo Message Number: 69777

Hi Dan,

I did find it but you have to be a contortionist to get to it. I moved the seat all the way back and then wiggled my way under the steering wheel with a flashlight to see what it said. This morning I will go turn on my air compressor and add air to my tires. I have also had my RV weighted and I will not be close to the max.

Thank you
Ilene

Re: Tire Pressure 2004 Inspire

Reply #11 –
Yahoo Message Number: 69786
I respectfully beg to differ slightly from the statement below in one of the posts in this thread:

"Find your tires and your coach weight. The chart will give you the proper pressure for the front (single) and the rear (dual). Anything else is a wild guess."

I believe having the coach weighed and looking up the a suitable pressure in the tables offered by the tire manufacturers gives you what the tire manufacturers consider adequate pressure for the load and application for their tires - not necessarily "the proper" pressure. You might better term their recommendation a "minimal pressure" for a specific set of load conditions. The recommendations by the coach manufacturer are, I think, for the maximum load and probably a better figure to use on a long term basis regardless of the actual weights obtained by weighing. The point of weighing (a good idea) is to be sure the loading and distribution are satisfactory and perhaps with the use of the tables to find minimal acceptable pressures.

When weighing coaches came into vogue and pushed at FMCA conventions about 8 years ago I had our then new coach weighed and looked up the pressure tables offered by Toyo which were significantly lower than the coach placard (more than 10#psi all positions). The ride improved a little but there was no noticeable effect on the handling except that it might have felt more "squishy". The tire sidewalls were noticeably more flexed which would suggest more flexing and an adverse effect on tire life but maybe easier on the suspension. Now I simplify by just using the placard numbers, which by the way , I believe is the legal definition of the "proper" inflation pressure.

Jim M

'02 Intrigue #11410 ISL400

Re: Tire Pressure 2004 Inspire

Reply #12 –
Yahoo Message Number: 69798
Jim This has been covered before. After the lawsuits between Ford and Firestone , over the SUV roll-over problems, coach manufacturers, have generally added their own safety factor , to prevent being sued. On my 09 Magna , when I picked up my coach and saw the high pressures on the name plate, Ben Buchanen, the Chassis engineer at CC, indicated the pressures they used were the same as Prevost. When quizzed, about weight distribution, etc , and pressured by me, he said that I could put whatever pressure I decided ( using the tire manufacturers tables ) that he would put 10 PSI more in, than the tables read. He said it was company policy to put the values on the name plate and he could not officially recommend anything other than that. Basically , the tire companies rate their tires with a safety factor and then the motor home manufacturers put another safety factor in, so that they don't get sued. Why else would a tire manufacturer put out a table of suggested pressures ? These higher listed pressures in the Coach are CYA. If you want it to ride like a truck , put in the CC suggested pressures. I have used the tried and proven FMCA method. To date I am not aware that they have been sued, because they have just done what the tire companies have suggested. Just MHO

Ron Baran 09 Magna 7025

Re: Tire Pressure 2004 Inspire

Reply #13 –
Yahoo Message Number: 69801
I agree with Ron, use the pressure charts. My Magna barely gets on the Michelin Tire Charts using the 315's and at full fuel, full water and stuff, the pressures are 100 - 90 - 85 with a 10 lb cushion built in, based on side to side and individual wheel weights. None of the Prevosts I've owned required full pressure as the CC Engineer stated, don't know were he dreamed that up.

I can just imagine what 120 lbs per the placard rides like once they get hot! No wonder there is so much complaining about bouncing and front end issues.

Tom

Trans-Specialists/Lifeline Batteries
01 Magna 5999

www.trans-specialists.net

Re: Tire Pressure 2004 Inspire

Reply #14 –
Yahoo Message Number: 69805
Jim

I read your post and the first thing that comes to mind is your assumption that all tires and pressure are equal. Tires are mfg. for weight, speed , temp. For example the Nascar had a big " brew ha " over tires at a track that prematurely wore out in a very short period of time. Airplane tires with many layers of cord blankets.
How else could you ever get a proper base line of "proper inflation" then to weigh the coach. Then the ride would be equal to the load carried. To much air and the ride would be harsh and stiff. To little air and soft ride but increase friction producing heat for extreme tire wear. Look at the "super singles" today you see now carrying the weight of duals. The width and construction has made this possible.
When the Michelin tire pressure guide was published, this in my opinion was the best reference to have the air pressure at levels for coach weight. Here is the first and most important part of this procedure. Weigh the coach.......and with somewhat most of your gear and fluids that you normal carry.
Just to carry the max pressure as put by a place card inside your coach is just "oh well ". Now my coach rides like I' am sitting on a park bench at 60 mph.
These place cards are fine and suggest pressure at the max weight. Looking at the printed info on each tire....first pressure......then max weight for the tire.
Why a owner would inflate a tire to max pressure cold is beyond me. Because the place card said so...more nonsense.

AL

Re: Tire Pressure 2004 Inspire

Reply #15 –
Yahoo Message Number: 69806
Al, in principle I agree.

That said, I found my Inspire handled better with the fronts set to 120 psi (tire and rim max). I had suffered a "wandering"? issue for years until I made the increase. I drive 60 mph max.
My front weight doesn't justify that pressure, but the table pressure would be ridiculously low.
Is the ride rougher? Probably. But I'll take the better handling over a marginal increase in road noise any day.
Of course the roads in Florida are smooth as glass, so it's a non issue.

Jay

05 Inspire daVinci 51457
 

Re: Tire Pressure 2004 Inspire

Reply #17 –
Yahoo Message Number: 69808
Well so far, in California, I have the right to do what I want. I have to fight this, because of a 'law' that says car repair places must check PSI, and set per the Manufacture (yep, those high numbers on the decal inside your coach) values. I actually had to insist that they not touch my car PSI, and sign a doucment stating I insisted they not touch my tire PSI!!!
That being said, I concur with the as traveling four corner weight, and tire manufacturer PSI setting. I do add a safety margin to the weights, and if close at all to the next level on the chart, move up to this setting. Then I add 5 psi to that, as my double mental safety level.
With 12R's Mich's XZE *'s, I find I'm way below the CC decal values.
Best to all, as we all do what we want to do, and that is how it should be...
Smitty,

04 Allure 31017
04 Allure Sold to a nice new owner! Now enjoying a 07 Magna Rembrandt 45' ISX600 #6775
"We're ONDROAD for THEJRNY!" (Toad and Coach license plates, say Hi if you see us!)