Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-25-2015, 08:15 PM   #1
Senior Member
 
Join Date: Apr 2015
Posts: 142
Tire Inflation

OK, here's the deal;
This seems like it should be a simple deal, but I can't seem to find an answer. My rig is an Alpine 36 FDDS, "07 mod. I put new Goodyears on the front, same as the factory originals a while back, and now I'm getting ready to replace the original rears.....just waiting for them to come in. I took the RV to my local trash station this afternoon, and had it weighed on their big platform scale. The results were, 29,340 gross; 11,300 front axle, and 17,860 rear axle. So what should the cold PSI be for the front, and for the duelies on the back?
__________________

__________________
Dudley do-right is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-25-2015, 08:37 PM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,972
The inflation chart ( pdf )will be on the Good/Year web site.
Corner weights would be better.
In this case size really does matter , with out the EXACT tire size , no one can help.
__________________

__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-25-2015, 08:50 PM   #3
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,972
Found this from Good Year web site.
Attached Files
File Type: pdf Goodyear tire-care-guide.pdf (1.70 MB, 43 views)
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-28-2015, 11:53 AM   #4
Senior Member
 
Join Date: Apr 2015
Posts: 142
re ; tire pressure

Thanks all... found appropriate charts on Goodyear site.(whooda thought?)

Dudley dumb-right
__________________
Dudley do-right is offline   Reply With Quote
Old 09-28-2015, 03:18 PM   #5
Senior Member
 
Alpine Owners Club
Join Date: Apr 2007
Location: Edmonds, WA
Posts: 588
I have Yokohama tires on our MH. They were placed on there by the consignment lot we purchased the coach from. The work was done by Kaiser Brake & Alignment in Eugene. We were talking about tire inflation and one of the techs said that people who ran tires with the suggested pressure and the tires began to show wear like an underinflated tire. He told me where to set my pressures and I am pleased with the results so far.
__________________
Janet and Todd Legg
2006 Alpine Apex M-40FDQS #75594
2014 Honda CRV w/navi
Janet and Todd is offline   Reply With Quote
Old 09-28-2015, 03:21 PM   #6
Senior Member
 
Join Date: Oct 2014
Posts: 527
Quote:
Originally Posted by Janet and Todd View Post
I have Yokohama tires on our MH. He told me where to set my pressures and I am pleased with the results so far.
So, what size Yokohama tires|?

What PSI are you running front/back?

How much over "chart PSI" based on weight is this?

Thanks.

Brett
2003 Alpine 38FDDS
__________________
wolfe10 is offline   Reply With Quote
Old 09-28-2015, 03:37 PM   #7
Senior Member
 
Alpine Owners Club
Join Date: Apr 2007
Location: Edmonds, WA
Posts: 588
295 80R 22.5
110 on the front 105 on the rear.
I have no chart.
Yokohama has never replied to my request for one.
These tires are stiffer than Michelin and Goodyear but Kaiser says they've had no complaints.
__________________
Janet and Todd Legg
2006 Alpine Apex M-40FDQS #75594
2014 Honda CRV w/navi
Janet and Todd is offline   Reply With Quote
Old 10-05-2015, 11:51 AM   #8
Senior Member
 
Tom and Patty's Avatar


 
Alpine Owners Club
Join Date: Jun 2004
Posts: 1,850
First thing I say when someone says not pay attention to the charts is: "I didn't know you were a tire engineer! How long have you been in the tire business?"
Really, these manufacturers test their product, determine what's correct and print the charts to kill trees.

Know your weights on the corners, use the charts and be safe.
Just my humble opinion and not to be construed as advice. I leave that to the charts from Goodyear, Michelin, Bridgestone, Yokohama....
I'll step off now.
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
Tom and Patty is offline   Reply With Quote
Old 10-05-2015, 05:11 PM   #9
Senior Member
 
Alpine Owners Club
Join Date: Apr 2007
Location: Edmonds, WA
Posts: 588
Yokohama doesn't have a chart. If you can get one from them like I have tried I'd like you to share it with me.
__________________
Janet and Todd Legg
2006 Alpine Apex M-40FDQS #75594
2014 Honda CRV w/navi
Janet and Todd is offline   Reply With Quote
Old 10-05-2015, 07:06 PM   #10
Senior Member
 
Tom and Patty's Avatar


 
Alpine Owners Club
Join Date: Jun 2004
Posts: 1,850
Quote:
Originally Posted by Janet and Todd View Post
Yokohama doesn't have a chart. If you can get one from them like I have tried I'd like you to share it with me.
I don't have a load and inflation chart for Yokohama. They have this web site, but I cannot get it to work.

https://www.yokohamatruck.com/commer...ure-calculator

Let me know what model you have....295/80R22.5? 14 or 16 ply? I will call in a marker and get you the info.

Most manufacture like sizes are the same capacity, at the same psi and load range (ply), because the ability of the tire to carry the load depends on the size (like a bigger envelope or bucket can hold more).

I will bet you will be able to reduce your air pressure and get a much better ride when I get hold of the Yoko chart.
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
Tom and Patty is offline   Reply With Quote
Old 10-05-2015, 07:08 PM   #11
Senior Member
 
Tom and Patty's Avatar


 
Alpine Owners Club
Join Date: Jun 2004
Posts: 1,850
Quote:
Originally Posted by dudley do-ri View Post
Thanks all... found appropriate charts on Goodyear site.(whooda thought?)

Dudley dumb-right
Ha! Dudley knows-right now!!!
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
Tom and Patty is offline   Reply With Quote
Old 10-05-2015, 07:26 PM   #12
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,535
The tire companies themselves say not to use another manufacturers weight/pressure charts. They might be OK, but how do you know for sure?
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 10-05-2015, 08:05 PM   #13
Senior Member
 
Tom and Patty's Avatar


 
Alpine Owners Club
Join Date: Jun 2004
Posts: 1,850
Quote:
Originally Posted by Mr_D View Post
The tire companies themselves say not to use another manufacturers weight/pressure charts. They might be OK, but how do you know for sure?
You are correct. But in most cases, again MOST cases, an 11R22.5 load range G (14 ply) carries the same weight -single - 6175 @105 psi. The industry is standardized for the most part. Look up 11R22.5 LR-G in Goodyear, Michelin and Bridgestone all carry 6175 @105. However, there are some cases, like Michelin, when a like size tire will scale a larger load.


That is why I would be hesitant to provide a Michelin Chart for Yokohama inflation. It is strange that I cannot find a load inflation chart for Yok on the web
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
Tom and Patty is offline   Reply With Quote
Old 10-06-2015, 09:48 AM   #14
Senior Member
 
bcbowers's Avatar
 
Alpine Owners Club
Join Date: Mar 2009
Location: Surprise, AZ
Posts: 633
FWIW ... I found this page on the Yohama site that provides a tire pressure calculator specifically for "truck" tires ...

https://www.yokohamatruck.com/commer...ure-calculator
__________________

__________________
Bob Bowers (Surprise, AZ)
2003 Alpine Coach 40' FDTS
2014 Jeep Cherokee Lattitude
bcbowers is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Irregular tire wear RedT Freightliner Motorhome Chassis Forum 1 06-04-2015 06:20 PM
Tire inflation after weighing motorhome Larryhobby Class C Motorhome Discussions 9 01-10-2015 09:23 AM
Tire Inflation - no chart Bouchbri25 MH-General Discussions & Problems 29 10-24-2014 09:18 AM
Tire inflation JohnnyT88 Class C Motorhome Discussions 14 04-02-2014 09:21 AM
Checking tire pressure seadogjim Class A Motorhome Discussions 14 03-19-2014 09:34 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:39 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.