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09-25-2016, 08:55 AM
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#1
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New Member
2007 16' Bambi
Owen Sound
, Ontario
Join Date: Sep 2016
Posts: 2
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Tire Psi
Hi....I have a 16' Bambi and have 16" wheels. It says on the tire the psi is 65. What psi should I actually fill the tire to while cold?
Thanks,
Butch
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09-25-2016, 09:07 AM
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#2
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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Refer to the manufacture inflation chart. The printed number on the tire side wall is a Max. pressure. The pressure you want is a function to the weight of the trailer as loaded.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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09-25-2016, 08:50 PM
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#3
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Vintage Kin
Fort Worth
, Texas
Join Date: Nov 2006
Posts: 8,014
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Or, you can read commentary on this subject from the two tire engineers who post here that the pressure tables don't apply to tires in trailer service. Max pressure per sidewall statement is best for longest and most reliable tire service. Do otherwise at a greater risk of tire failure.
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10-07-2016, 06:30 PM
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#4
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2 Rivet Member
2004 30' Classic
San Antonio
, Texas
Join Date: Oct 2016
Posts: 95
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Put at 65 psi when cold. Preferably in the morning. It is difficult to keep it at that depending on time of year and day. I would venture to say that all these variable are taken into consideration when the tire is being developed. Just look at the pro drivers. Once a tire is on the pressure is the last they are thinking about. And please don't put LT tires on a travel trailer. They are constructed differently and they flex. Plus the load an LT tire can handle is less than a tire for trailers.
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10-07-2016, 06:37 PM
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#5
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Rivet Master
1995 25' Excella
xxxxx
, xxxxxx
Join Date: Apr 2015
Posts: 2,351
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I run my ST tires at the max printed on the sidewall.
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10-08-2016, 07:37 AM
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#6
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Rivet Master
1974 Argosy 26
Morrill
, Nebraska
Join Date: Nov 2009
Posts: 6,014
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30K miles on ST tires at 55psi. Never had a problem. No rivets shearing or hard ride problem. I limit my speed to 60mph.
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10-19-2016, 11:55 AM
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#7
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2016 19ft flying cloud
Spokane
, Washington
Join Date: May 2016
Posts: 165
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Tire pressure value indicators
Anyone have any luck with the screw on tire pressure indicators set at 65psi?
Seems like a good idea if you don't have a TPMS on board
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10-19-2016, 06:52 PM
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#8
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Rivet Master
2019 30' International
Pennsylvania
, Pennsylvania
Join Date: May 2016
Posts: 1,241
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I run mine between 65 and 68 psi.
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10-24-2016, 08:05 PM
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#9
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2 Rivet Member
2004 30' Classic
San Antonio
, Texas
Join Date: Oct 2016
Posts: 95
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I can almost bet that the engineers that developed the tires had constructed a product that can handle the gyrations of tp. Just as long as you don't run them like run flat tires. Did you know that the tp of tires facing the sun in the morning is higher that the tp of tires in the shade.
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10-24-2016, 09:03 PM
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#10
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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Quote:
Originally Posted by Barbieri
I can almost bet that the engineers that developed the tires had constructed a product that can handle the gyrations of tp. Just as long as you don't run them like run flat tires. Did you know that the tp of tires facing the sun in the morning is higher that the tp of tires in the shade.
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You might open a Physics book and look up TPV
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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10-25-2016, 05:06 AM
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#11
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Moderator dude
1966 26' Overlander
Phoenix
, Arizona
Join Date: Apr 2002
Posts: 7,507
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As you have found there is a max cold fill pressure on the side wall of the tire. The vehicle manufacturer (a travel trailer in this case) will also publish a cold fill pressure as well based on the design of the vehicle.
Vehicle manufacturers tend to install a tire that will just accomodate the max load with not much margin. Most passenger vehicles rarely see the max load. Many travel trailer run at or near the max load all the time, so inflating the tires to max pressure (on a cold tire) shown on the tire side wall will handle that load.
Weighing your trailer will help you to understand what load is being applied to the tires. It is useful to know that load on each tire. Or at least from side to side, front to back.
Always fill a cold tire. As a tire is used the pressure will rise because the tire is flexing in use and generates friction which generates heat. And heat causes the presure to increase. And check tires and tire pressure frequently.
>>>>>>>>>>>Action
__________________
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!
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10-25-2016, 05:34 AM
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#12
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Rivet Master
Currently Looking...
Mantua
, Ohio
Join Date: Jul 2005
Posts: 7,062
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Quote:
Originally Posted by Barbieri
Put at 65 psi when cold. Preferably in the morning. It is difficult to keep it at that depending on time of year and day. I would venture to say that all these variable are taken into consideration when the tire is being developed. Just look at the pro drivers. Once a tire is on the pressure is the last they are thinking about. And please don't put LT tires on a travel trailer. They are constructed differently and they flex. Plus the load an LT tire can handle is less than a tire for trailers.
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Your comments about LT tires are misleading. Your opinion based on misinterpreting facts.
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12-06-2016, 10:35 PM
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#13
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2 Rivet Member
2004 30' Classic
San Antonio
, Texas
Join Date: Oct 2016
Posts: 95
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Sorry but it is not an opinion. I just read what is on a tire and what the manufacturer has posted on the internet.
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12-06-2016, 11:00 PM
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#14
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Rivet Master
2014 20' Flying Cloud
Washington
, Missouri
Join Date: Mar 2014
Posts: 2,591
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Here is a very long thread that I have saved and started to read. PSI discussion starts on page 7 or so I believe,
http://www.airforums.com/forums/f465...s-69297-8.html
Simply a coincidence that it opens up to Action (Moderator Dude post # 11 above) as that is where I left off. This is a great thread with a lot of varied info re tires, inflation, LT's vs ST's, 15's >16's. Also like hitches, TV's etc, no shortage of threads on the tire and tire/subcategory subject
Bob
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12-07-2016, 04:10 AM
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#15
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Moderator dude
1966 26' Overlander
Phoenix
, Arizona
Join Date: Apr 2002
Posts: 7,507
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Quote:
Originally Posted by CruizinDux
Here is a very long thread that I have saved and started to read. PSI discussion starts on page 7 or so I believe,
http://www.airforums.com/forums/f465...s-69297-8.html
Simply a coincidence that it opens up to Action (Moderator Dude post # 11 above) as that is where I left off. This is a great thread with a lot of varied info re tires, inflation, LT's vs ST's, 15's >16's. Also like hitches, TV's etc, no shortage of threads on the tire and tire/subcategory subject
Bob
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Bob, Airforums is a bit customizable. Meaning the number of posts seen on a page can be different for many users. So with that said, what is on page 7 to you may be a different page to some one else even though the post count is the same. If you want to direct others to a spot in a thread (expecially a long one) direct them to a post number and all will have the opportunity to follow to the place you want them to go.
>>>>>>>>>Action
__________________
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!
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12-07-2016, 06:38 AM
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#16
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Rivet Master
2014 31' Classic
2015 23' International
2013 25' FB International
Apache Junction
, Arizona
Join Date: Sep 2012
Posts: 6,222
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That vintage Bambi probably has 15" GoodYear Marathon ST225/75R15D tires that are rated 2,540 pounds @ 65 psi and are mounted on 15" wheels. They would be load range "D" and sidewall restricted to a maximum of 65 mph as well.
__________________
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic w/ twin beds, 50 amp service, 1000 watt solar system, Centramatics, Tuson TPMS, 12" disc brakes, 16" tires & wheels
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12-07-2016, 09:42 AM
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#17
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Rivet Master
2014 20' Flying Cloud
Washington
, Missouri
Join Date: Mar 2014
Posts: 2,591
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Re post # 15 (Action) the PSI discussion in the link starts around post #90.
Bob
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12-07-2016, 09:47 AM
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#18
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Rivet Master
Tavares
, Florida
Join Date: Jun 2015
Posts: 1,052
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Quote:
Originally Posted by Spinonedad
Anyone have any luck with the screw on tire pressure indicators set at 65psi?
Seems like a good idea if you don't have a TPMS on board
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Uhhhh...yeah, 65 (GYMs with rubber stems) and 50 (Michelins with steel stems, current tire).
I use the TST 507 monitor with the screw on sensors. Seems to work pretty well. Been across the country a couple times. Support by TST was excellent when I had a few questions on programming and set up.
__________________
“Character is doing the right thing when nobody’s looking. There are too many people who think that the only thing that’s right is to get by, and the only thing that’s wrong is to get caught.” - J.C. Watts Jr.
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12-07-2016, 09:49 AM
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#19
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Rivet Master
Tavares
, Florida
Join Date: Jun 2015
Posts: 1,052
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Tire Psi
Quote:
Originally Posted by Butch McNabb
Hi....I have a 16' Bambi and have 16" wheels. It says on the tire the psi is 65. What psi should I actually fill the tire to while cold?
Thanks,
Butch
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If they are Goodyear Marathons, I would use 65.0 psi and watch tire pressure like a carny giving me change from a $50 bill.
__________________
“Character is doing the right thing when nobody’s looking. There are too many people who think that the only thing that’s right is to get by, and the only thing that’s wrong is to get caught.” - J.C. Watts Jr.
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12-07-2016, 10:04 AM
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#20
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Rivet Master
, Minnesota
Join Date: Aug 2003
Posts: 7,721
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Quote:
Originally Posted by Llando88
If they are Goodyear Marathons, I would use 65.0 psi and watch tire pressure like a carny giving me change from a $50 bill.
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Nope, that was a $40 dollar bill, I'm sure it was. . .
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