ronfisherman
SE Michigan
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Joined: 06/05/2006
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Got 2 of the smaller sensors. Was not able to use them on my front wheels because tool used to install stem could not be removed after install. One of my rear tires had a slow leak. Took MH to local Michelin dealer. He repaired that leak with a new valve stem. Told him about my problems with front stems. Not a problem for him. He used a small piece of tubing to bend the stem so it was in center of hole. He said they do it all the time. I also found some very short valve stem extensions. Not really stem extensions but Double Seal Valve Caps. They work great to get sensor out to a point where it can be put on with my fingers. One of the vendors at a FMCA rally I attended showed me these caps.
At the same rally I pickup the T's for my Crossfire tire inflation equalizers. The smaller sensors worked best in this location. They clear the Crossfire head. Where the larger sensors did not. Attached a photo of the assembly.
I am still happy with my system. Looks like others are finding out the same thing.
2004 Gulf Stream Endura 6340 D/A
Saf-TTE tire monitor
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Gale Hawkins
Murray, KY
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Joined: 07/22/2007
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Ron does the Crossfire have a valve that will keep the air from the good tire leaving in case of a blowout on the other one? Your photo was the first system I have seen.
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ronfisherman
SE Michigan
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Joined: 06/05/2006
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Gale Hawkins wrote:Ron does the Crossfire have a valve that will keep the air from the good tire leaving in case of a blowout on the other one? Your photo was the first system I have seen.
Yes it does. Here is a link to their site. Dual Dynamics.
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Chuck Roder
High Springs, FL
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Joined: 06/01/2003
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I want to give a Big Thanks to all of you who posted helpful informaton in the thread. It sure made this process easy.
Unlike most of you, I only tow a mid sized TT, but after having numerous tire problems on my last trailer ( lost two tires on one trip, a third six months later, all tires only two years old) and having one flat on the current trailer, I decided a pressure monitoring system was worth the $.
For those of you who might be wondering, I have checked both old and new trailer (fully loaded for a weeks vacation) on the truck scales. Both have been under the weight limit for the trailer, it's tire's and for the tow vehicle. The trailer never sits for longer than a month at a time without moving, and the tires are protected from the sun.
Here is my system installed:
I made a mounting bracket that uses an existing screw in the dash panel trim.
Antenna mounted over "B" piller.
Sensor mounted on trailer tire.
Chuck Roder & Family
'07 Surveyor SV-235RS
'03 Chevy TrailBlazer EXT LT V8
High Springs, FL.
Our Pictures
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SGTJOE
Utah
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Joined: 01/12/2006
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I've had my system on for a few weeks and am still amazed how much the psi changes based on temperature. Another eyeopener has been how my trusty air gages aren't so trusty anymore. My Sears digital that ran about $15.00 on sale went into the trash can with a couple of others that read as low as 12 lbs from the sensors. Kinda scary, huh? I kept one that is reading 2 lbs over then the sensors. I'm still looking for a good ACCURATE air gage. First trip out with the system is 11 Jun down to Moab Utah, this will be interesting as the Temps at night and day can really fluctuate. I set my tire temp at 175, do you think it's too high??
2001 Trade Winds 7390
Toad 03 Grand Am
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creeper
Richmond Hill, Georgia
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Joined: 12/22/2003
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SGTJOE wrote:I've had my system on for a few weeks and am still amazed how much the psi changes based on temperature. Another eyeopener has been how my trusty air gages aren't so trusty anymore. My Sears digital that ran about $15.00 on sale went into the trash can with a couple of others that read as low as 12 lbs from the sensors. Kinda scary, huh? I kept one that is reading 2 lbs over then the sensors. I'm still looking for a good ACCURATE air gage. First trip out with the system is 11 Jun down to Moab Utah, this will be interesting as the Temps at night and day can really fluctuate. I set my tire temp at 175, do you think it's too high??
It Could be that the sensors are wrong and the gauges are correct. I would test to find out which is wrong. All my gauges are dead on with each other, I tested 3 and then put on my sensors and they read the same. Now I have more trust in the accuracy of the sensors.
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thawmeout
Battle Ground WA
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Joined: 07/26/2006
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I have read that "some" good tire shops have a "master calibrated guage" that they use to insure that the hand held pen gauges that the shop guys use are accurate with tolerances.
Is there any truth to that? What is considered accurate? and how much tolerance between say Duals out/in and from side to side on both the drive axle(s) and the steering axle.
Thanks
Tim
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ronfisherman
SE Michigan
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Joined: 06/05/2006
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SGTJOE wrote: I set my tire temp at 175, do you think it's too high??
That's the same temperature I have mine set at. If you are running in the desert. I would think it would not be high enough when air temp may be close to 120.
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SGTJOE
Utah
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Joined: 01/12/2006
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creeper wrote:SGTJOE wrote:I've had my system on for a few weeks and am still amazed how much the psi changes based on temperature. Another eyeopener has been how my trusty air gages aren't so trusty anymore. My Sears digital that ran about $15.00 on sale went into the trash can with a couple of others that read as low as 12 lbs from the sensors. Kinda scary, huh? I kept one that is reading 2 lbs over then the sensors. I'm still looking for a good ACCURATE air gage. First trip out with the system is 11 Jun down to Moab Utah, this will be interesting as the Temps at night and day can really fluctuate. I set my tire temp at 175, do you think it's too high??
It Could be that the sensors are wrong and the gauges are correct. I would test to find out which is wrong. All my gauges are dead on with each other, I tested 3 and then put on my sensors and they read the same. Now I have more trust in the accuracy of the sensors.
Yeah, I thought that too until I started checking all my gages and found that not one matched each other. The gage the company uses is calibrated. So for fun I'll put the older sensors on my Toad and see what they do. Let you all know tomorrow.
BTW, Creeper, what kind of gages do you have? Sounds like good ones.
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grldst
Dallas, GA
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Joined: 12/10/2003
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So far, I haven't seen tire temps increase more then 15 degrees from outside air temps. The tires on the towed actually show higher temp increases while traveling, then the RV. RV tires on the shady side increase only 5 degrees. Outside temps have been in the high 70's to low 80's.
As was stated above, I also was surprised as to how much air temp affects air pressure.
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