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tire pressure
07-20-2006, 01:01
Post: #11
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 wrote:
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 wrote:

> 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 wrote:
> 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.
>
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>

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08-02-2006, 21:53
Post: #12
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




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08-03-2006, 01:12
Post: #13
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

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08-03-2006, 01:15
Post: #14
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

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08-03-2006, 01:48
Post: #15
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]





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08-04-2006, 00:56
Post: #16
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]





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08-04-2006, 19:09
Post: #17
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



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08-05-2006, 05:00
Post: #18
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
>
>
>
>
>
>



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