|
10-22-2018, 06:14 PM
|
#1
|
Winnebago Camper
Join Date: Jan 2018
Posts: 8
|
Tire temperatures
While on a trip from Wisconsin to Texas, I measured tire temperature with an infrared laser. Drivers side rear tires were about 90 degrees, ds front tire was same. Passenger side front tires were around 100 degrees and ps rear tires measured around 130 degrees. Outside temps were in the 65 degree range and I was cruising about 65 mph. The pressure in all rear wheels was 79.5 psi and the front wheels were 60 psi before starting in the morning. Any thoughts on why this is?
|
|
|
10-22-2018, 06:18 PM
|
#2
|
Winnebago Master
Join Date: Mar 2018
Location: Deming, NM
Posts: 582
|
If it was a bright sunny day I suspect the tires on the sunny side were probably higher. I noticed that on my TPMS on our recent trip to Indiana.
__________________
2016 Minnie Winnie 27Q on a 2015 Ford E450 chassis. Retired U.S. Air Force. Lived in Anchorage, Alaska for 30+ years. Now Living in Deming, NM.
|
|
|
10-23-2018, 04:46 AM
|
#3
|
aa1ssradio
Join Date: Jul 2012
Location: Where the Rig is Parked
Posts: 286
|
Same here. Ive noticed temp differences around 20 to 30 degrees at times depending on what tires were in the sun and what ones were in the shade.
|
|
|
10-28-2018, 04:13 PM
|
#4
|
Winnebago Owner
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 92
|
If you took the measurements just after driving, and if the RH side tires both got the same amount of sun on them, then Yes, there is a problem with the rear tire. It should have read the same as the front RH tire.
Honestly, my TPMS shows tire temps that are about what the air temp is on the road. Showing temps 30 degrees higher than ambient temperature would be alarming to me. Maybe it the IR sensor you're using?
__________________
Rick and Sandy
2003 American Eagle, 52K miles
|
|
|
10-28-2018, 05:31 PM
|
#5
|
Winnie-Wise
Join Date: Nov 2006
Location: Grayson, GA
Posts: 344
|
Sounds like sun was influencing the tire temperature. Also, if the roads you were traveling on happened to be a two lane road with a slight rise in the middle of the road to help drain it, the tires on the low side will run hotter as more of the weight of the coach is shifted to the low side.
__________________
Dave and Karen -- '02 Ultimate Advantage 36 C, 350 HP Cummins, Allison 3060 Tranny
'13 Ford Edge, InvisiBrake
|
|
|
10-28-2018, 06:27 PM
|
#6
|
Winnebago Camper
Join Date: Mar 2009
Posts: 27
|
Quote:
Originally Posted by bamaboy473
If you took the measurements just after driving, and if the RH side tires both got the same amount of sun on them, then Yes, there is a problem with the rear tire. It should have read the same as the front RH tire.
|
Not necessary a tire problem, it could be a loaded problem. Most people tend to over load the right side of the coaches/campers.
If you have duals, then i'd measure the duals on both sides, the inside dual is usually a little hotter but not by that much.
You may have a combination of things affecting your temps. But, 130 degrees is not very concerning as tire temps go. Especially if you have duals and the inside dual is about or a little more in temps, that would suggest a loading issue.
If you start seeing 150 and above then it may be an issue.
|
|
|
10-28-2018, 06:54 PM
|
#7
|
Winnebago Owner
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 92
|
I'm no expert by any means; my frame of reference is a couple of motor homes with TST TPMS, Both coaches had 6 wheels, and temps between inside and outside tires were within a few degrees on the sun side, and about the same on the shade sides.
Both coach tire temps while running on cloudy days, were close to normal outside temps on the roads. I actually have the alarms set at 110 degrees (Southeast traveling)
The TPMS on my utility trailer reads the same. That suggests to me that 15" tires and 22.5" tires might handle temps the same.
Call me a wuss if need be, but I think the OP is right to be concerned.
__________________
Rick and Sandy
2003 American Eagle, 52K miles
|
|
|
10-28-2018, 08:33 PM
|
#8
|
Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,044
|
Cold tire pressure is also involved with tire temperature. the lower the pressure the more the sidewall flexes, which equates to more heat buildup; which may also involve overloading/underinflation is the leading cause(approx 90%) of tire failures.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
|
|
|
10-29-2018, 08:07 AM
|
#9
|
Winnebago Owner
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 174
|
Quote:
Originally Posted by Stoflyer
While on a trip from Wisconsin to Texas, I measured tire temperature with an infrared laser. Drivers side rear tires were about 90 degrees, ds front tire was same. Passenger side front tires were around 100 degrees and ps rear tires measured around 130 degrees. Outside temps were in the 65 degree range and I was cruising about 65 mph. The pressure in all rear wheels was 79.5 psi and the front wheels were 60 psi before starting in the morning. Any thoughts on why this is?
|
Sounds about normal for IR measurement which is probably 30F to 40F lower than the internal temperature.
Pressure when running the the best indicator as it takes time for lower pressure to generate enough heat to show up with external temperature measurement. Get and use a TPMS as I know of no other method to get enough advanced warning of impending tire problems.
__________________
Retired Design & Quality Tire Eng. Have a tire blog RVTireSafety.NET Scheduled to give tire seminars at FMCA Convention in Tucson March 20 - 22, 2024
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
Similar Threads
|
Thread |
Thread Starter |
Forum |
Replies |
Last Post |
Using RV in cold temperatures
|
dirtfeetdan |
Winnebago General Discussions |
34 |
10-31-2019 07:13 AM |
A question on tire installation.
|
RCtime |
Running Gear, Axles, Brakes, Wheels and Tires |
12 |
01-15-2009 05:02 AM |
Another tire change question
|
RCtime |
Running Gear, Axles, Brakes, Wheels and Tires |
6 |
01-13-2009 02:26 PM |
Wil spare tire fit into basement storage compartment?
|
Catpowered |
Running Gear, Axles, Brakes, Wheels and Tires |
17 |
11-25-2008 02:30 PM |
Tire Temperatures
|
ichn2go |
Running Gear, Axles, Brakes, Wheels and Tires |
12 |
06-05-2008 07:03 AM |
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|