tire pressure
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07-20-2006, 01:01
Post: #11
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tire pressure
Hey John,
Yea, I think this would be the smart thing to do. I didn't realize that the Flying J had a scale. I'm near there (I-10 & Quincy) from time to time and will check it out. There use to be a scale at the truck stop at the I-10 Loyd exit that is just east of Tallahassee. Thanks! Alex John Suter Hi Alex, Great advice from Pete. As you will want to follow his advice to weigh each tire separately, as you call to locate scales, you will have to specifically ask if they have that capability as most do not or will not. (They are Certified by Dept of Transportation therefore put up guard rails at scale sides so trucks have to weigh entire load and cannot drop off one side and receive a Certificate for a lighter weight than actual.) I have weighed individual tires in years past at the truck stop (Flying J, I think) in the vicinity of the Havana (Hwy 27) exit of I-10 near you. Pete probably assumed you knew all tires on the same axle should carry the same pressure. Meaning the heaviest tire position per axle will govern pressure, within the maximum limits of rim and tire casing. John Suter Jacksonville, FL --- Alex Smith > Thanks Pete for the information. I checked > http://www.michelin-us.com and they have some really good > information. If anyone needs to know how to weigh an > RV, this website shows just how to do it. > Alex > > Pete Masterson > The air pressure should be > consistent with the load ratings for the > brand of tire and the actual weight of your coach. > While the BB > manual has a chart in the owners manual (along with > the required > placard), it would be better to use the similar > weight/air pressure > chart provided by the tire manufacturer (usually > accessible at the > tire company web site). > > The placard is based on BB's estimated weight (with > the OEM tires) -- > you need to weigh your coach to determine the > _actual_ tire pressure > required with the normal load you carry. If you > check your yellow > pages for "public scales", hopefully you should > find a scale > reasonably close by*. You should load your coach as > you would for a > trip (full fuel, water tanks as you might normally > have them, and > food and baggage on board). > > The archives for this group probably have an > explanation --- and I've > seen several in RV-related magazines as well --- > that explain > precisely how to weigh the coach. You need to know > the weight on each > axle and on each wheel left vs. right. You want to > be sure that the > left-right load is reasonably balanced and that no > axle is carrying > more than its rated weight capacity. You should > then inflate the > tires for the weight of each axle per the tire mfgs > table. The trade > off is more air pressure will carry more weight -- > but more air > pressure will make the ride less-smooth (that's why > you don't want to > carry more air than is necessary). > > While simply filling the tires to the maximum > pressure (as shown on > the sidewall) will certainly ensure that you > haven't under-inflated > the tire, it may make your vehicle ride more > harshly and may degrade > the handling. > > Remember, too, that air inflation measurements must > be made when the > tire is at ambient temperature as heat generated in > driving will > raise the pressure, potentially causing to be > under-inflated when the > tires are cool. > > *Note: state-run "weigh stations" generally do not > want to see an RV > pull in to their scales. In California, you run a > risk of getting a > ticket, especially at a busy weigh station. Some > other states may be > more forgiving and/or may even be willing to pull > the several weights > you need (axle by axle, etc.) It would be wise to > telephone ahead > before pulling into a state-run weigh station. > > Pete Masterson > aeonix1@... > '95 Bluebird Wanderlodge WBDA 4203 > El Sobrante, CA > > On Jul 17, 2006, at 11:57 AM, Alex Smith wrote: > > > Hello, > > I have followed several discussions in the past > on tires, load > > ratings, and brands. However, not much has been > said on tire pressure. > > > > A placard in my coach indicates 105 psi on > front and 75 psi on > > rears. Is this the current thinking? 75 psi on > the rear tires seems > > a little low esp when max pressure is over 100 > psi. > > > > I have gotten some different advice locally, > but I'm still > > running with the pressure as shown on the BB > placard. > > > > Any comments appreciated. > > Alex Smith > > Tallahassee, FL > > 82FC35 > > > > [Non-text portions of this message have been > removed] > > > > > > > --------------------------------- > See the all-new, redesigned Yahoo.com. Check it > out. > > [Non-text portions of this message have been > removed] > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com [Non-text portions of this message have been removed] |
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08-02-2006, 21:53
Post: #12
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tire pressure
Personally, I run 110psi in all my tires, but this isn't the recommended
method. Ideally, each axle should be weighed separately, and the air pressure adjusted accordingly by the weight of each axle to the tire manufacturer's air pressure table, available on-line. I've never weighed my BB, but from what I've gleaned from the forum over the years, I probably should be running somewhere closer to 100 front, 90 drivers, and 85 tag...I'm sure I'd get a better ride. I've driven the BB probably around 10K since I've owned it, and tires show no wear. I'm usually near max GVWR, which is why I keep the air pressure pretty high. Also, this was recommended to me by a large truck tire dealer here in So Cal who mounted and balanced the tires when new, and aligned the front wheels. If you have access to a truck scale, weigh your coach, use the tables, and adjust accordingly. Kevin McKeown Yorba Linda, CA 1986 38' PT [Non-text portions of this message have been removed] |
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08-03-2006, 01:12
Post: #13
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tire pressure
Fellows Birds,
I have a 86 8V92 PT40 and the tire pressure placard inside the front left side generator battery door calls for; Front 105 Drive 85 Tag 85 I would like to hear from you if you have a like size unit as to what tire pressures you are running. As always Thanks, Howard Truitt Camilla, Ga. 86 8V92 PT40 [Non-text portions of this message have been removed] |
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08-03-2006, 01:15
Post: #14
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tire pressure
Addition to original message.
Fellows Birds, I have a 86 8V92 PT40 and the tire pressure placard inside the front left side generator battery door calls for; Front 105 Drive 85 Tag 85 I'm running Michelin 12 R 22.5 tires I would like to hear from you if you have a like size unit as to what tire pressures you are running. As always Thanks, Howard Truitt Camilla, Ga. 86 8V92 PT40 [Non-text portions of this message have been removed] |
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08-03-2006, 01:48
Post: #15
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tire pressure
Weigh the vehicle, read the tire side wall for pressure specs, inflate
accordingly. It's OK to check with tire retailer for tire inflation/weight information. The inflation spec tag on the bus is marginal at best. Think Ford/Firestone love fest a couple years back. MH ----- Original Message ----- From: Howard O. Truitt To: WanderlodgeForum@yahoogroups.com Sent: Thursday, August 03, 2006 8:15 AM Subject: [WanderlodgeForum] Re: Tire Pressure Addition to original message. Fellows Birds, I have a 86 8V92 PT40 and the tire pressure placard inside the front left side generator battery door calls for; Front 105 Drive 85 Tag 85 I'm running Michelin 12 R 22.5 tires I would like to hear from you if you have a like size unit as to what tire pressures you are running. As always Thanks, Howard Truitt Camilla, Ga. 86 8V92 PT40 [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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08-04-2006, 00:56
Post: #16
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tire pressure
Howard: My coach runs the same tires except I have replaced the front with
Toyo, same size and rating. My plates state the same recommended pressures. I recently weighed my coach at approx, 44,000 pounds. I have always run 100-105 all around in the summer and 110 in the winter. It has worked for me. Don't know what other BBers do. Leroy Eckert 1990 WB-40 Niceville, FL ----- Original Message ----- From: Howard O. Truitt To: WanderlodgeForum@yahoogroups.com Sent: Thursday, August 03, 2006 8:15 AM Subject: [WanderlodgeForum] Re: Tire Pressure Addition to original message. Fellows Birds, I have a 86 8V92 PT40 and the tire pressure placard inside the front left side generator battery door calls for; Front 105 Drive 85 Tag 85 I'm running Michelin 12 R 22.5 tires I would like to hear from you if you have a like size unit as to what tire pressures you are running. As always Thanks, Howard Truitt Camilla, Ga. 86 8V92 PT40 [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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08-04-2006, 19:09
Post: #17
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tire pressure
All,
What Kevin is suggesting is the standard answer. But I have wondered if one should run the inside duals slightly lower due to the road crown affect? If you run the dual exactly the same pressure, then the inside duals carry more of the axles weight since the road is curved/crowned. Just a thought and I have not seen anything written on the subject. Jimmy -----Original Message----- From: WanderlodgeForum@yahoogroups.com [mailto:WanderlodgeForum@yahoogroups.com]On Behalf Of krminyl@... Sent: Thursday, August 03, 2006 8:53 AM To: WanderlodgeForum@yahoogroups.com Subject: Re: [WanderlodgeForum] Re: Tire Pressure Personally, I run 110psi in all my tires, but this isn't the recommended method. Ideally, each axle should be weighed separately, and the air pressure adjusted accordingly by the weight of each axle to the tire manufacturer's air pressure table, available on-line. I've never weighed my BB, but from what I've gleaned from the forum over the years, I probably should be running somewhere closer to 100 front, 90 drivers, and 85 tag...I'm sure I'd get a better ride. I've driven the BB probably around 10K since I've owned it, and tires show no wear. I'm usually near max GVWR, which is why I keep the air pressure pretty high. Also, this was recommended to me by a large truck tire dealer here in So Cal who mounted and balanced the tires when new, and aligned the front wheels. If you have access to a truck scale, weigh your coach, use the tables, and adjust accordingly. Kevin McKeown Yorba Linda, CA 1986 38' PT [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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08-05-2006, 05:00
Post: #18
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tire pressure
Interesting idea... but the road crown is rarely (if ever) evenly
centered under the coach (unless you're in the habit of driving down the center of 2 lane roads), so running the inside duals with lower pressure would not provide any benefit and is likely to simply cause more load to shift to the outside tires. Pete Masterson aeonix1@... '95 Bluebird Wanderlodge WBDA 4203 El Sobrante, CA On Aug 5, 2006, at 12:09 AM, The Squires wrote: > All, > > What Kevin is suggesting is the standard answer. But I have > wondered if one > should run the inside duals slightly lower due to the road crown > affect? If > you run the dual exactly the same pressure, then the inside duals > carry more > of the axles weight since the road is curved/crowned. Just a > thought and I > have not seen anything written on the subject. > > Jimmy > -----Original Message----- > From: WanderlodgeForum@yahoogroups.com > [mailto:WanderlodgeForum@yahoogroups.com]On Behalf Of krminyl@... > Sent: Thursday, August 03, 2006 8:53 AM > To: WanderlodgeForum@yahoogroups.com > Subject: Re: [WanderlodgeForum] Re: Tire Pressure > > > Personally, I run 110psi in all my tires, but this isn't the > recommended > method. Ideally, each axle should be weighed separately, and the air > pressure > adjusted accordingly by the weight of each axle to the tire > manufacturer's > air > pressure table, available on-line. > > I've never weighed my BB, but from what I've gleaned from the > forum over > the > years, I probably should be running somewhere closer to 100 > front, 90 > drivers, and 85 tag...I'm sure I'd get a better ride. I've driven > the BB > probably > around 10K since I've owned it, and tires show no wear. I'm > usually near > max > GVWR, which is why I keep the air pressure pretty high. Also, > this was > recommended to me by a large truck tire dealer here in So Cal who > mounted > and > balanced the tires when new, and aligned the front wheels. > > If you have access to a truck scale, weigh your coach, use the > tables, and > adjust accordingly. > > Kevin McKeown > Yorba Linda, CA > 1986 38' PT > > > > [Non-text portions of this message have been removed] > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > Yahoo! Groups Links > > > > > > [Non-text portions of this message have been removed] |
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