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11-05-2018, 10:45 AM
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#1
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Member
Join Date: Aug 2018
Posts: 42
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Tires, a misc. warning and thoughts
Recent discussions of tires have maybe not made me afraid but reinforced my prudence. We got our Surv. 251RK in august and have done a couple of 3 day outings nearby. I had not checked tire pressure as "Matt" said everything was done. You would think a 70 year old with 5 years of RVing would know better. Anyway we should leave for the sunny south in a bit over a week and since it was in the 50s today and may snow on wednesday, why not check tires today. The tires and the helpful sticker say 65 psi. All four of the devils were at 55. So my warning, trust no one. Beyond that I was wondering if the tires were filled in the nice warm dealership shop might that account for the difference? The oracles say 1# for every ten degrees so that doesn't account for it. Has anyone noticed a pattern that would suggest that the factory ships them with low pressure for a reason? OH yeah, one of the valve stem caps was missing. You cannot check to carefully.
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11-05-2018, 10:59 AM
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#2
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Denver To Yuma In 90 Days
Join Date: Mar 2018
Location: Yuma, Arizona
Posts: 3,882
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About a year ago I found a nail in one of my 5'ver tires, thanks to my brand new (and first trip) with my TPMS system.
I stopped at a tire shop in Canon City, Colorado to get the tires patched and I asked the tire guy more than once if had had put 65 PSI back in the tire.He said "Yes!" each time I asked.
Well, it takes a few miles (or a few minutes, not sure which) down the road before the TPMS gauges the pressure.
About 10 miles down the road my TPMS warning goes off and it is the tire I just had fixed!
The tire shop only put 35 PSI in that tire...
I don't trust anyone...even the Chevy dealership, who always sets my truck tires atr 35 PSI when I get an oil change. 
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11-05-2018, 12:02 PM
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#3
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Senior Member
Join Date: May 2015
Posts: 1,397
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They may not have been aired properly from the get go, or they may have just lost air naturally. Still, trust but verify.
__________________
--2005 F350 Superduty Crewcab, 6.0, 4wd, short bed, 3.73 gears;
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD
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11-05-2018, 12:28 PM
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#4
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Site Team
Join Date: Oct 2014
Posts: 15,300
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RV manufacturers buy tires mounted on wheels/axle assemblies from suppliers in bulk. The tires on your new RV may have sat in a warehouse at the manufacturer, the axle manufacturer, then FR plant,and finally your dealer. So your new RV tires may have been aired up well over a year ago and in many cases are not rechecked for correct pressure. This is also true for wheel bearing grease. I would never assume that either the pressure or the bearing lubrication are correct when I purchased a new RV.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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11-05-2018, 02:07 PM
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#5
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Junior Member
Join Date: Apr 2018
Posts: 1
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Thanks for this! Reinforces for me that the pilot is always ultimately responsible for pre-flight checks! Besides, we're the ones who will suffer the consequences!
__________________
Often found on the beach @ Elephant Butte, NM
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11-05-2018, 04:34 PM
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#6
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Senior Member
Join Date: Aug 2013
Location: Edmonton, Alberta
Posts: 112
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Tires, a misc. warning .....
I have this nice little 12/120 v compressor. Has a digital readout to show existing tire pressure. you then input your target pressure and walk away. It pumps up until at input pressure plus .5 lbs
The day before we take off on every trip, every tire gets checked and pumped up as required. Only takes a few minutes to be safe!
2011 Ram 3500 Laramie Cummins
2014 Columbus F320 RS 5th
2006 Corsair 246 RKS 5th
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11-05-2018, 04:43 PM
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#7
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RV There Yet?
Join Date: Jul 2018
Location: Winona, MN
Posts: 1,140
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Quote:
Originally Posted by JohnD10
The tire shop only put 35 PSI in that tire...
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this bothers me to no end! if i go in for an oil change or other service, i explecitely tell them NOT to touch the PSI in my tires. or if i put the sub zero washer fluid in. its fun when they top you off with the cheap crap and you get slush in the tank. i tell them not to top me off anymore.
when we picked up our trailer new this year, they had installed those stupid "pressure monitoring" valve stem caps. got home and realized one tire was at 20 PSI! all those caps do is leak, and they dont do what they say they will. straight in the garbage! we always do a pre and post flight check. walk all the way around, touch everything you need to check. for me it helps it become muscle memory. easier to remember if i checked it or not.
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11-05-2018, 05:25 PM
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#8
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Denver To Yuma In 90 Days
Join Date: Mar 2018
Location: Yuma, Arizona
Posts: 3,882
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Quote:
Originally Posted by dnicoll
I have this nice little 12/120 v compressor. Has a digital readout to show existing tire pressure. you then input your target pressure and walk away. It pumps up until at input pressure plus .5 lbs
The day before we take off on every trip, every tire gets checked and pumped up as required. Only takes a few minutes to be safe!
2011 Ram 3500 Laramie Cummins
2014 Columbus F320 RS 5th
2006 Corsair 246 RKS 5th
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I had two of them...
Neither of them can handle the bigger heavier tires on my 5'ver and just sit there and run...even though they are rated to 120 PSI!
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11-05-2018, 05:48 PM
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#9
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Senior Member
Join Date: Aug 2013
Location: Edmonton, Alberta
Posts: 112
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I think my buddy tried to use my compressor for his big 5th. And it never would fill his. My Columbus (which is more or less permanently parked) is 85 PSI and the little road tripper is 65. And you are correct, supposed to be good for 120.
__________________
Dave
2011 Ram 3500 Laramie Cummins. SRW
2014 Columbus F320 RS. 5th
2007 Corsair. 246 RKS. 5th
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11-05-2018, 05:50 PM
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#10
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Recently new!
Join Date: Dec 2014
Location: Arizona, in The Land of Scorch!
Posts: 1,206
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Do they come with low pressure from the factory because it costs too much money for the extra air? LOL!
__________________
1987 Starcraft Nova tent trailer, purch. '87, sold 8.14
2013 Crusader 290RLT bought new, 8.14 lotsa mods!
2001 Ford F-250 7.3
Loving wife, R.I.P., 6/6/19
and Mason the always dirty dog! R.I.P, 2/19
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11-05-2018, 07:02 PM
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#11
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Member
Join Date: Aug 2018
Posts: 42
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nitro
Quote:
Originally Posted by Paulie1138
Do they come with low pressure from the factory because it costs too much money for the extra air? LOL!
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I was going to make a smart comment about the nitrogen in ours which is supposed to hold pressure better. Now it is 55/10 blend.
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11-05-2018, 08:38 PM
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#12
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Senior Member
Join Date: Jun 2013
Posts: 280
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Which is why a trailer really needs a TPMS system and always carry a portable tire pumping device.
My tow vehicle is another issue. After 35 years of driving a work van, my rear end is calibrated to plus or minus 2 pounds of air in tires.
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11-05-2018, 08:44 PM
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#13
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Denver To Yuma In 90 Days
Join Date: Mar 2018
Location: Yuma, Arizona
Posts: 3,882
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Quote:
Originally Posted by Paulie1138
Do they come with low pressure from the factory because it costs too much money for the extra air? LOL!
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Nah!
They fell for the nitrogen farce... 
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11-05-2018, 11:34 PM
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#14
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Senior Member
Join Date: Aug 2016
Posts: 158
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Most trailers only call for 55 psi and in all the years I have been rving I have never had a tire failure
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11-05-2018, 11:42 PM
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#15
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Senior Member
Join Date: Aug 2014
Location: Northern KY
Posts: 5,725
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Quote:
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Most trailers only call for 55 psi and in all the years I have been rving I have never had a tire failure
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WHAT??? You are kidding of course.
__________________
"nothing can now be believed which is seen in a newspaper. Truth itself becomes suspicious by being put into that polluted vehicle."
Thomas Jefferson to John Norvell pg. 2, June 11, 1807
2014 Shamrock 183
2014 RAM 1500 Bighorn Crew Cab, HEMI, 3.21 gears, 8 Spd, 4X4 TST TPMS
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11-05-2018, 11:47 PM
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#16
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,586
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Quote:
Originally Posted by johnlochbuie
Most trailers only call for 55 psi and in all the years I have been rving I have never had a tire failure
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Most trailers do not only call for 55 psi. Many call for 65; many call for 80, etc., etc.
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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11-06-2018, 12:11 AM
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#17
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Senior Member
Join Date: Aug 2016
Posts: 158
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You are wrong
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11-06-2018, 12:49 AM
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#18
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Senior Member
Join Date: Aug 2013
Location: Edmonton, Alberta
Posts: 112
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Tires
Quote:
Originally Posted by johnlochbuie
Most trailers only call for 55 psi and in all the years I have been rving I have never had a tire failure
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My 25 foot Corsair 5th has 65 psi recommended and my Columbus is 85 psi. That would be based on max trailer loading. This psi is typically found on the sticker on the side of the trailer or on the King pin hitch support brackets. PSI is also based on size & type of tire as well as load range.
I know many campers will take their tv and trailer to the scales and adjust psi of trailer and tv tires based on loaded weights.
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11-06-2018, 06:13 AM
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#19
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Senior Member
Join Date: Sep 2012
Location: Virginia
Posts: 9,931
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Quote:
Originally Posted by johnlochbuie
Most trailers only call for 55 psi and in all the years I have been rving I have never had a tire failure
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I have never had a tire failure in 35 plus years of towing trailers either........ but a statement that most trailers call for 55 PSI is totally false. Yours may call for that but my last two trailers (camping) called for 80 PSI. ............. I own 5 other utility trailer and all have different PSI requirements depending on GVWR ........and axles and tires.
__________________
2005 Dodge 3500 Cummins
2017 Wildwood Lodge 4092 BFL
1966 Mustang GT
1986 Mustang SVO
Lillie Spoiled Rotten Boxer Mix
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11-06-2018, 09:10 AM
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#20
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Junior Member
Join Date: Oct 2018
Posts: 1
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I bought a IR Temp device at harbor freight on sale for $19.95. I always check the pressure before I start the truck. I usually stop after the first hour and record the tire and wheel bearing temps. Then at every rest stop I make, usually 2 to 3 hours, I take about 30 seconds to shoot the temp of every tire and bearing again looking for a spike in temp thus showing a potential problem. I also shoot the brake hubs looking for a dragging brake. I don't even have to bend over.
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