I finally got around to installing the PressurePro TPMS sensors on our rig and also got an infrared thermometer to check tire/hub temps with while transiting.
Yesterday we were traveling from NY over to CT and passed through some decently hilly but definitely not mountains in the eastern foothills of the Catskills. Before installing the sensors I had mades sure the F450 tires were at 75/60 per door sticker and the trailer tires were at the recommended 120.
After towing a couple of hours we stopped at a rest stop and I temp checked the wheels. Truck was about 150 front and 130 rear and the trailer was in the 145-158 range depending on which tire it was. Checked the PressurePro for pressures, the truck was at 80/67 and the trailer was all up around 138-140.
I know that the wheels heat up from braking as well as the tire pressure going up from temperature change while driving…but since this is the first time I actually used either the temp gauge or the pressure monitor I wondered if these increases were in line with what I should expect. I'm guessing they are since all the tires were about the same percent pressure increase and the wheel temps were comparable so it doesn't look like anything was running any hotter/higher than the average…but it's always good so ask others for observations.
Thanks.
Howard said
01:35 AM Aug 25, 2012
All temps and pressures are in normal ranges after being driven.
Of course the only way to know the proper starting pressures for all the tires is to know what load they are carrying. But with the knowledge you have until you can get weighed wheel-by-wheel, the changes in your pressures are normal (around 10 - 15% of starting pressure). If your tires are underinflated for the load, temperatures will increase above normal and, therefore, so will pressures.
As for temperature changes, those are normal too. Keep an eye out for significant temperature changes on one wheel compared to others and for any temps approaching 200 degrees.
jadatis said
09:13 PM Aug 25, 2012
At first the temperature in the tire can be different from the temperature of the treath you measure .
The temperature in the tire can rise to boiling point of water at 1 bar=100dg C/??F.
And this is indeed because of the heat of the brakes , transported trough the rimms to the tire-inside.
Sorry , in Holland where I live, we use Kg , Bar , and degr Celcius , so you have to convert it yourselves.
I made a spreadsheet to play with the temperature in the tire, and see what it does to the pressure.
On my skydrive from hotmail I planted the spreadsheet , click right on the "pressurecalculation with temp "and pick "download".
After that open it in Excell or compatible programm.
Since I know nothing about "Skydrive" nor the forum participant that posted the above comment with a link to a Skydrive source, I would like to know if anyone knows anything about whether there have ever been computer "virus" issues with Skydrive.
While I might be interested in the information in "jadatis's" program, I have no intention of downloading anything until I know more about both Skydrive and jadatis's downloadable file.
Should anyone know of virus issues with Skydrive or anything else about jadatis's file, kindly let me know so that I can decide whether to leave his comment or not. After all, this is jadatis's only post at RV Dreams.
Terry
Mallo said
03:26 AM Aug 26, 2012
Skydrive appears to be Microsofts response to Google docs a place to put things.
The real question is the Excel spreadsheet you have no idea what you may be getting into unless you know the source you're getting it from. I don't know the poster well enough to say trust don't trust. How good / current is your virus scanner?
There are a number of tire presure / temp charts out there on the web.
Mallo
Neil and Connie said
03:41 AM Aug 26, 2012
Thanks Howard. That was about what I figured but was just verifying. Getting a wheel by wheel weighing is on our list of things to do but will have to wait until we run into you on our travels or hopefully the New Horizons Rally will have somebody on hand next spring that can do it. I assume there are others that also do wheel by wheel weighing but haven't run across any yet.
jadatis said
12:29 PM Aug 26, 2012
Terry and Jo wrote:
Moderator note and question:
Since I know nothing about "Skydrive" nor the forum participant that posted the above comment with a link to a Skydrive source, I would like to know if anyone knows anything about whether there have ever been computer "virus" issues with Skydrive.
While I might be interested in the information in "jadatis's" program, I have no intention of downloading anything until I know more about both Skydrive and jadatis's downloadable file.
Should anyone know of virus issues with Skydrive or anything else about jadatis's file, kindly let me know so that I can decide whether to leave his comment or not. After all, this is jadatis's only post at RV Dreams.
Terry
I probably registered a while ago , to give answer to a tire-pressure related question, but did not do the answer , so this was my first post here.
I am frequently googling for tire-pressure , because I once got hold of the formula that the tire-makers in Europe use , and went running with it.
I live in Holland.
Learned myself Excell with help of different furum users , and made spreadsheets for it. Translated a few to English to go worldwide with it.
Skydrive is what you can use when you have a Hotmail adress and I planted many files on the public map of it to refer to in fora.
Problem is that they constantly chanche the lay out of it , so downloading from it needs an other way in time.
But when you download a document of it, you can first do a virus check before opening it.
You can also open some Spreadsheets in the browser, but this cant handle sheetprotection annd data validation, that I use in most spreadsheets.
Sheetprotection to prefent overwriting formulas, and data validation to make dropdown-boxes to select for instance the loadindex with their weights in kg and lbs.
I finally got around to installing the PressurePro TPMS sensors on our rig and also got an infrared thermometer to check tire/hub temps with while transiting.
Yesterday we were traveling from NY over to CT and passed through some decently hilly but definitely not mountains in the eastern foothills of the Catskills. Before installing the sensors I had mades sure the F450 tires were at 75/60 per door sticker and the trailer tires were at the recommended 120.
After towing a couple of hours we stopped at a rest stop and I temp checked the wheels. Truck was about 150 front and 130 rear and the trailer was in the 145-158 range depending on which tire it was. Checked the PressurePro for pressures, the truck was at 80/67 and the trailer was all up around 138-140.
I know that the wheels heat up from braking as well as the tire pressure going up from temperature change while driving…but since this is the first time I actually used either the temp gauge or the pressure monitor I wondered if these increases were in line with what I should expect. I'm guessing they are since all the tires were about the same percent pressure increase and the wheel temps were comparable so it doesn't look like anything was running any hotter/higher than the average…but it's always good so ask others for observations.
Thanks.
All temps and pressures are in normal ranges after being driven.
Of course the only way to know the proper starting pressures for all the tires is to know what load they are carrying. But with the knowledge you have until you can get weighed wheel-by-wheel, the changes in your pressures are normal (around 10 - 15% of starting pressure). If your tires are underinflated for the load, temperatures will increase above normal and, therefore, so will pressures.
As for temperature changes, those are normal too. Keep an eye out for significant temperature changes on one wheel compared to others and for any temps approaching 200 degrees.
At first the temperature in the tire can be different from the temperature of the treath you measure .
The temperature in the tire can rise to boiling point of water at 1 bar=100dg C/??F.
And this is indeed because of the heat of the brakes , transported trough the rimms to the tire-inside.
Sorry , in Holland where I live, we use Kg , Bar , and degr Celcius , so you have to convert it yourselves.
I made a spreadsheet to play with the temperature in the tire, and see what it does to the pressure.
On my skydrive from hotmail I planted the spreadsheet , click right on the "pressurecalculation with temp "and pick "download".
After that open it in Excell or compatible programm.
https://skydrive.live.com/?cid=a526e0eee092e6dc#cid=A526E0EEE092E6DC&id=A526E0EEE092E6DC%21128
Moderator note and question:
Since I know nothing about "Skydrive" nor the forum participant that posted the above comment with a link to a Skydrive source, I would like to know if anyone knows anything about whether there have ever been computer "virus" issues with Skydrive.
While I might be interested in the information in "jadatis's" program, I have no intention of downloading anything until I know more about both Skydrive and jadatis's downloadable file.
Should anyone know of virus issues with Skydrive or anything else about jadatis's file, kindly let me know so that I can decide whether to leave his comment or not. After all, this is jadatis's only post at RV Dreams.
Terry
The real question is the Excel spreadsheet you have no idea what you may be getting into unless you know the source you're getting it from. I don't know the poster well enough to say trust don't trust. How good / current is your virus scanner?
There are a number of tire presure / temp charts out there on the web.
Mallo
I probably registered a while ago , to give answer to a tire-pressure related question, but did not do the answer , so this was my first post here.
I am frequently googling for tire-pressure , because I once got hold of the formula that the tire-makers in Europe use , and went running with it.
I live in Holland.
Learned myself Excell with help of different furum users , and made spreadsheets for it. Translated a few to English to go worldwide with it.
Skydrive is what you can use when you have a Hotmail adress and I planted many files on the public map of it to refer to in fora.
Problem is that they constantly chanche the lay out of it , so downloading from it needs an other way in time.
But when you download a document of it, you can first do a virus check before opening it.
You can also open some Spreadsheets in the browser, but this cant handle sheetprotection annd data validation, that I use in most spreadsheets.
Sheetprotection to prefent overwriting formulas, and data validation to make dropdown-boxes to select for instance the loadindex with their weights in kg and lbs.