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Topic: Are these tire temp variances OK? (Read 210 times) previous topic - next topic
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Are these tire temp variances OK?
Hi, we just stopped for the night in Hannibal, MO.  On the last leg of today’s drive I noticed that the right rear tires were reading about 10-12 degrees hotter than any of the other corners.  Outside air temp was about 69 degrees.  Tire temps were 84-86 in just that R/R corner.  Left rear were both in the low 70’s.  Both fronts were also in the low 70’s.  It was pretty persistent for about an hour—but in the last few minutes of the drive the left rears also found their way into the mid 80’s.  Is this OK?
Still pretty new to RV lifestyle & Lazy Daze
2014 27’ MB
Two beautiful Weimaraners, Junie & Pearl (now our angel dogs)
Re: Are these tire temp variances OK?
Reply #1 –
Was the sun to your right? That could have an effect. And were the right rear tires a similar pressure to the left rear?
Greg & Victoria
2017 Mid-Bath  “Nocona” towing a manual 2015 Forester
Previously a 1985 TK
SKP #61264
Re: Are these tire temp variances OK?
Reply #2 –
Quote from: HiLola  - 
Was the sun to your right? That could have an effect. And were the right rear tires a similar pressure to the left rear?
The sun was on my right—but behind a pretty good overcast.  Cold pressures were identical in all 4 rear tires this morning; pressures once hot varied a bit, but it more than 3-4 PSI from left to right.
Still pretty new to RV lifestyle & Lazy Daze
2014 27’ MB
Two beautiful Weimaraners, Junie & Pearl (now our angel dogs)
Re: Are these tire temp variances OK?
Reply #3 –
"Cold pressures were identical in all 4 rear tires this morning;..."

And after they cooled down in the evening were they then equal?

Take a flashlight and examine the space between the dual's to see if they are touching (they should NOT be touching) or if there is road debris (rocks) stuck in there.   :o 
Steve S.
Lazy Bones & Cedar
2004 30'IB (Island Bed)
Yesterday is History, Tomorrow is a Mystery
Live for the day!
Re: Are these tire temp variances OK?
Reply #4 –
Quote from: Lazy Bones  - 
"Cold pressures were identical in all 4 rear tires this morning;..."

And after they cooled down in the evening were they then equal?

Take a flashlight and examine the space between the dual's to see if they are touching (they should NOT be touching) or if there is road debris (rocks) stuck in there.   :o 
All 4 are showing identical PSI now that they’ve cooled.  I’ll check in the morning for any debris between the tires.  Thanks.!
Still pretty new to RV lifestyle & Lazy Daze
2014 27’ MB
Two beautiful Weimaraners, Junie & Pearl (now our angel dogs)
Re: Are these tire temp variances OK?
Reply #5 –
Air flow under the vehicle affects the tires. All that gasoline you are burning, much of it is removed by water and into the radiator, which air flows underneath. Outside breezes will affect my TST measured tire temperatures. The sensors are more affected by outside air temps than by the actual rubber/wheel temperature.
   Also the proximity of the exhaust pipe on the passenger side, up and over the axle, has prompted many to put shields on the pipe, and rotate the tires side to side to even out exposure to heat. RonB
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB
Re: Are these tire temp variances OK?
Reply #6 –
The right rear tires run near the exhaust pipe, causing them to have a greater heat exposure than the other three corners. The most common tire to blow out is the right rear inside tire, the tire closest to the exhaust pipe.
IMO, the rear tires should be rotated side to side every 6-8,000 miles to spread the heat damage over more tires and not concentrate the damage to two tires. The rear tires normally are rotated side to side, due to most of us using stem extenders made for dual rear tires. The front tires should be rotated side to side or use a three-tire rotation if all seven tires are the same age.

After suffering a right rear inside blowout and the resulting damage, I made exhaust heat shields and now rotate the tires regularly.
The guys at Discount Tire take care of the rotation chore.

Exhaust heat shields | Flickr
Blown rear tire damage | Flickr

Larry


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Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
 
Re: Are these tire temp variances OK?
Reply #7 –
Quote from: Larry W  - 
The right rear tires run near the exhaust pipe, causing them to have a greater heat exposure than the other three corners. The most common tire to blow out is the right rear inside tire, the tire closest to the exhaust pipe.
Larry
Do most inside, right-rear tire failures show the same failure pattern? Maybe tire stores notice this?
2005 Jayco 24SS