RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Thor Industries Owner's Forum
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 06-05-2018, 05:30 PM   #1
Junior Member
 
Join Date: Jun 2018
Posts: 1
Palazzo 36.1 sloppy handling

We have almost 15kmiles on our 36.1 and have experienced very satisfactory performance and comfort with this coach.
As with any motor coach however, we have experienced poor handling at highway speeds. We have had alignment performed twice, new shock, and a steering stabilizer installed.
I’ve read several posts about this condition on various coaches but have still not been able to remedy this malady on our coach.
Recently, I read a post that peaked my curiosity and I was curious to see if any other owners have tried this as a resolve.
This particular owner stated that he weighed the coach and adjusted tire pressure accordingly which I have done. He stated that he felt over-inflation contributed so sloppy handling. Also, he adjusted the toe-in to 3/16” which I plan to try but my initial concern is that the coach handles perfectly on cold tires and only gets loose after the tires get hot.
Could it be that due to highway heating the tires are heating causing increased tire pressure which might causes handling to degrade?
(Mechlin radials)
__________________

Palazzo17 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 06-06-2018, 12:30 PM   #2
Senior Member
 
High Plains's Avatar
 
Thor Owners Club
Freightliner Owners Club
Join Date: Jun 2010
Location: Calhan, CO
Posts: 154
Welcome to IRV2. While I don't have any experience with the Palazzo yet. From my last 2 gas coaches tire pressure was a big deal. Both coaches had over inflated tires and the handling, was awful. I used the inflation recommendation on the sticker in the coach but when we take delivery of our Palazzo I plan to have the coach weighed and refer to the tire chart for that weight.
__________________

__________________
2016 Thor Palazzo 33.2, 2009 Ford Edge AWD
U.S. Army Retired
Calhan, CO.
High Plains is offline   Reply With Quote
Old 06-06-2018, 09:12 PM   #3
Senior Member
 
Thor Owners Club
Join Date: Feb 2015
Location: Tulsa, OK
Posts: 220
Quote:
Originally Posted by Palazzo17 View Post
We have almost 15kmiles on our 36.1 and have experienced very satisfactory performance and comfort with this coach.
As with any motor coach however, we have experienced poor handling at highway speeds. We have had alignment performed twice, new shock, and a steering stabilizer installed.
I’ve read several posts about this condition on various coaches but have still not been able to remedy this malady on our coach.
Recently, I read a post that peaked my curiosity and I was curious to see if any other owners have tried this as a resolve.
This particular owner stated that he weighed the coach and adjusted tire pressure accordingly which I have done. He stated that he felt over-inflation contributed so sloppy handling. Also, he adjusted the toe-in to 3/16” which I plan to try but my initial concern is that the coach handles perfectly on cold tires and only gets loose after the tires get hot.
Could it be that due to highway heating the tires are heating causing increased tire pressure which might causes handling to degrade?
(Mechlin radials)
OK. My comments may/may not help. I've got a Palazzo, but a 33.3, which is shorter and a bit lighter on the front end. However, I'm thinking my experience may assist.

Based on the front end weight of my coach, the original Goodyear tires should have had only 85 psig in them. On our maiden voyage in 2015, I drove ours to Florida and back on 125 psig! It was kinda wild. Luckily, I learned about tire pressures a few months after that trip. What a big improvement I got by reducing tire pressures. I routinely run 95 psig front and 105 psig rear--both about 10 psig above required presssures but they allow me to load the coach without concern. I've now got 55,000 miles on the coach. I switched to Michelins at about 51,000 miles.

I run the Michelins at the same pressures as before and get very similar handling with better tire balance. About the only time I find the 33.3 a hand full is when driving in big crosswinds. Ironically, it handles the worst when I get a quartering tailwind. It is a relatively light MH in the world of diesel pushers. In a way, it is a giant VW van where the center of gravity is behind the center of aerodynamic pressure. Fortunately, it is not too hard to deal with if you just slow down to about 55 mph in real windy conditions.

Get your coach weighed on all 4 corners. If you can, rearrange the load to balance side-to-side. Reduce tire pressures to 5 psig above minimum required.

Don't think I'd mess with toe-in. Stick with factory alignment specs and try to get it as close to nominal (middle) as possible. As for tire pressures, don't go below minimum pressures. Consider it normal to gain 10 - 15 psig during highway driving.
__________________
2018 Thor Tuscany 40RT ("Artie")
Formerly 2015 Thor Palazzo 33.3 ("Marco")
Towing 2016 Jeep Grand Cherokee Summit Ecodiesel
Big_Boy is offline   Reply With Quote
Old 06-07-2018, 01:01 AM   #4
Member
 
Aubrey2014's Avatar
 
Join Date: Aug 2017
Location: Port Arthur Texas
Posts: 70
Along with the front end stabilizer I also let out pressure to about 95 front 100-105 rear. Made a world of difference.
Aubrey2014 is offline   Reply With Quote
Old 06-25-2018, 10:04 PM   #5
Senior Member
 
Robf's Avatar
 
Join Date: Apr 2016
Location: Texas
Posts: 343
I will second BigBoy on his comments, Exactly what I have gone thru on my 2016 33.3.....over inflated upon purchase, all over the road, deflated to the Michelin specs and a world of difference. 2 things to add
1 I would suggest a tire pressure monitoring system, to accurately monitor the pressure and temp of the tires. Ours also monitors the tow car as well.
2 I had a pull to the right from the get go....after an alignment check it turned out to be ride height ( Right front bag was over inflating causing a pull )
__________________
2016 Palazzo 33.3
2015 Kia soul
Blue ox brake-Roadmaster Tow Bar
Robf 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
Sloppy fits trode Toads and Motorhome Related Towing 25 04-06-2014 05:03 PM
New XZE Tires - "drifting" "sloppy" feel J&SW Winnebago Industries Owner's Forum 16 03-11-2011 11:37 AM
sloppy entry steps bandmbrown MH-General Discussions & Problems 2 11-23-2010 10:58 AM
Towel rod--sloppy assembly, Tour 40TD Boris and Natasha Winnebago Industries Owner's Forum 4 12-11-2009 02:48 PM
Yet another bit of sloppy wiring on my Winnebago ctcamper Winnebago Industries Owner's Forum 4 06-26-2008 08:59 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 12:48 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×