Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 06-26-2014, 10:49 PM   #1
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
Question Ride height adj

Made appointment next Tuesday do have the ride hgt adjusted.

Freightliner says 10" in front, (there are two in front one in the rear)

9 3/4 in the rear.

Right now they are all about 1" more than that.

My question is this for a bit of a puzzle.

On the scales the left front is 600 lbs heavier than the right, is there a way to figure out how much more or less (fractions of an inch) in ride height L/R to transfer a few hundred pounds so they are closer.
__________________

__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 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 06-26-2014, 10:57 PM   #2
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
Quote:
Originally Posted by jimbo2013 View Post
........................
On the scales the left front is 600 lbs heavier than the right, is there a way to figure out how much more or less (fractions of an inch) in ride height L/R to transfer a few hundred pounds so they are closer.
Unless the weight is liquid then you won't be able to transfer and weight by adjusting ride height. If you weight difference between front right and left is 600# you should physically move some of that weight to the lighter side.
__________________

__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 06-27-2014, 06:21 AM   #3
Community Administrator
 
Route 66's Avatar


 
Newmar Owners Club
Retired Fire Service RVer's
Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,590
Adjusting the ride height can/does indeed change wheel weights (loads).

I had Spartan adjust my ride height several times to correct axle weight imbalances.

However, there is no formula and it's more of an art than a science.

On air suspension vehicles, adding weight to one side causes the ride height valve to add more air to the heavy side to bring it back to the correct ride height.

Ride height adjustments should be done when weighing all 4 wheels to observe individual wheel weights.

Once Spartan got my MH within side to side weight tolerance, but they said to reduce the imbalance any further, the MH would be leaning and not level.

It's a bit of trial an error to get the ride height and wheel weights as good as possible.
__________________
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP

Route 66 is online now   Reply With Quote
Old 06-27-2014, 06:54 AM   #4
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 26,726
Here is a thread on ride height.
__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans, now in good hands
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Old 06-27-2014, 08:46 AM   #5
Senior Member
 
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,608
Jimbo, hopefully your dealer will take more than just the suggested heights into account when setting your coach up. I'd say your question asked as you are dropping it off might help tell them more about what you're expecting?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 06-27-2014, 09:06 AM   #6
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
Not dropping it off, I'll be there working with him.
__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 is offline   Reply With Quote
Old 06-27-2014, 09:13 AM   #7
Senior Member
 
MRUSA14's Avatar
 
Entegra Owners Club
Join Date: Nov 2012
Posts: 4,518
Spartan told me that ride hight must be +/- 1/8 inch from recommended or there will be problems with wheel alignment, differential wear, etc. I asked them to adjust ride height to shift weight and they would not do it for reasons stated above.
__________________
Marc and Jill, Wellington FL
2013 Entegra Anthem 44SL
MRUSA14 is offline   Reply With Quote
Old 06-27-2014, 09:31 AM   #8
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,389
Quote:
Originally Posted by jimbo2013 View Post
Made appointment next Tuesday do have the ride hgt adjusted.

Freightliner says 10" in front, (there are two in front one in the rear)

9 3/4 in the rear.

Right now they are all about 1" more than that.

My question is this for a bit of a puzzle.

On the scales the left front is 600 lbs heavier than the right, is there a way to figure out how much more or less (fractions of an inch) in ride height L/R to transfer a few hundred pounds so they are closer.

Unlike the Some other chassis, your Roadmaster has two valves on the drive axle and one on the front, so a change in the front ride height is not likely to affect side to side weight. Just make sure the ride height is at spec.

I know some try to shift weight with the ride height but I think it's a bad idea. The ride height and the entire air suspension is designed to work in the dynamic situation of over the road travel. 400 pounds side to side imbalance on a 30k pound coach is not significant. Inflate the steer tires for the weight on the heavier tire.


Steve Ownby
Full time since '07
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is offline   Reply With Quote
Old 06-27-2014, 10:36 AM   #9
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
Not a Roadmaster it's a FL XC, 1 in the rear, two in the front.
__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 is offline   Reply With Quote
Old 07-10-2014, 05:30 PM   #10
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
Ok shop I stopped at didn't know enough, said there was no adjustment, well there is.

Two ways there is one bolt to the chassis that has a slot that can be used, but real PIA to adjust.

Found the a standard way to to make the adjustments is with an adjustable link so simple no one ever mentioned it here.


or


the rubber link lets the rod slip to any adjustment just tighten with the clamp in pic.

I'm ordering three of them, no more worry about making minor adjustments or have the coach lower on top of you.
__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 is offline   Reply With Quote
Old 07-11-2014, 04:05 PM   #11
Senior Member
 
Join Date: Dec 2013
Location: Lake Havasu City, AZ & Plover, WI
Posts: 1,707
I am fortunate enough to have a ride height valve at all four corners on our Power Glide Chassis. there is a 1/4" range up or down from the recommended height. Manufacturer told me that I could adjust anywhere within that range to distribute the weight where needed. I had one "Rear" valve 1/4" too high that when corrected shifted 500#s from the front right to the front left to get them within 100#s of each other. The ride height plays a big part in getting the proper balance. Shifting basement load will have little effect unless you are carrying your gold bars with you.
__________________
Crasher is offline   Reply With Quote
Old 07-22-2014, 10:26 AM   #12
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
found another type on Ebay $10 ea, they are so simple to adjust and safer than other ways
Attached Thumbnails
Click image for larger version

Name:	SAM_1399.JPG
Views:	72
Size:	215.2 KB
ID:	68774  
__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 is offline   Reply With Quote
Old 07-22-2014, 03:15 PM   #13
Senior Member
 
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,608
Looks sturdy as all get out, but might lack in adjustability? I mean, we already know 1/4" length can make a difference. What do you do here if you're half a hole off?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 07-22-2014, 10:28 PM   #14
Senior Member
 
jimbo2013's Avatar
 
Newmar Owners Club
Join Date: Aug 2013
Posts: 1,699
Good ?

But 1/2" on the rod holes only change height 1/4"

So you can do 1/8" easy if needed
__________________

__________________
Newmar Ventana 3933 | Miata close behind
1,060 Watts of Solar | 8 T-105 RE Batteries | Outback controls
HR 38 Endeavor
jimbo2013 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
1994 Crown Royale Signature Edition Ride Height pwhittle Monaco Owner's Forum 19 06-06-2014 10:33 AM
Ride Height for Horizon/Journeys BGR Winnebago Industries Owner's Forum 18 05-23-2014 03:40 PM
Ride height change weight shift. TXBart Entegra Owner's Forum 7 05-16-2014 05:23 AM
How many ride height control valves do I have harleyman134 Newmar Owner's Forum 6 05-14-2014 06:59 AM
Air ride height AF4J Monaco Owner's Forum 5 02-26-2014 09:00 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:12 AM.


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