Question Can't look away.

[Too Little Too Late]

If I take my eyes off the road for a second, I might find myself upside down in a bean field. When I bought the coach the front wheel bearing nuts were over four turns too loose. (How does this happen?) Took them off, checked the bearings, and put them back RIGHT, with fresh gear lube. Made a huge difference, but still I can't look away for a second. I watched Ernest Borgnine on YouTube looking around and carrying on conversations with everyone in the coach. He even made a remark saying it was like driving a really big station wagon. I've been to three alignment shops. Watched YouTube videos about adding caster to make the wheels want to center. Some one asked why the shims on the spring perches are facing opposite directions. Hmm, I don't know, maybe something to do with road crown. So I already know about the add on stuff. I just think this coach should drive a little more like a really big station wagon. In about 300 days we plan on being full timers. Any Ideas before we hit the road? . . . ahh leave?

 

[Holdmybeer]

If I take my eyes off the road for a second, I might find myself upside down in a bean field. When I bought the coach the front wheel bearing nuts were over four turns too loose. (How does this happen?) Took them off, checked the bearings, and put them back RIGHT, with fresh gear lube. Made a huge difference, but still I can't look away for a second. I watched Ernest Borgnine on YouTube looking around and carrying on conversations with everyone in the coach. He even made a remark saying it was like driving a really big station wagon. I've been to three alignment shops. Watched YouTube videos about adding caster to make the wheels want to center. Some one asked why the shims on the spring perches are facing opposite directions. Hmm, I don't know, maybe something to do with road crown. So I already know about the add on stuff. I just think this coach should drive a little more like a really big station wagon. In about 300 days we plan on being full timers. Any Ideas before we hit the road? . . . ahh leave?

I can tell you that on mine, if I put more pressure on the front end with the rear air bags the steering gets some better. Lowering the front tire pressure to the manufacturers recommended load inflation psi helps as well.

 

[Too Little Too Late]

I can tell you that on mine, if I put more pressure on the front end with the rear air bags the steering gets some better. Lowering the front tire pressure to the manufacturers recommended load inflation psi helps as well.

Thanks for the ideas. The tag for the front says 115 and I run them at 110, because when I hit a pot hole it's like an explosion. The tag for the rear says 95 and I run them at 90 for the same reason.

 

[Holdmybeer]

Thanks for the ideas. The tag for the front says 115 and I run them at 110, because when I hit a pot hole it's like an explosion. The tag for the rear says 95 and I run them at 90 for the same reason.

You could get it weighed, then consult your tire manufacturer's load inflation tables. The data plate recommendations are ordinarily based on the coaches gvwr, not your actual weight. The tires are perfectly fine at those pressures, but I'm guessing your front tires are 20-25 lbs. over what your load inflation table would list as necessary. That will both make the ride harsh and steering a bit squirrely. Just be sure to make psi changes with cold tires.

 

[Sand-dog]

I’m running my XL all six at 100 psi. I have adjusted from 90 up to 105 over the years and 100 seems to be the answer. I don’t carry a lot of extra dead weight, tools and camping gear along with the usual stuff inside. I’d like to run my front Michelin‘s at 95 or less, but I’m afraid it might put extra wear on the tires.

 

[DennisT]

As stated previously, getting the coach weighed will give you the best info. Once we got ours weight I was able to lower the pressures 5 lbs from the sticker.

 

[Holdmybeer]

I’m running my XL all six at 100 psi. I have adjusted from 90 up to 105 over the years and 100 seems to be the answer. I don’t carry a lot of extra dead weight, tools and camping gear along with the usual stuff inside. I’d like to run my front Michelin‘s at 95 or less, but I’m afraid it might put extra wear on the tires.

The wear you’re concerned about is from the area of tire patch. If your tires are inflated in accordance with your tire mfg’ers load inflation table the tire patch ( the area of the tire in contact with the surface) will be usual.

 

[Sand-dog]

The wear you’re concerned about is from the area of tire patch. If your tires are inflated in accordance with your tire mfg’ers load inflation table the tire patch ( the area of the tire in contact with the surface) will be usual.

Yep my rigs weight is around 34,000 pounds and weighed in at the factory. I’m assuming that includes the refrigerator,stove, wash and dryer and so on. I probably only load it with about 1500 pounds. According to the Michelin tire guide it says 110 psi for max load psi. I think I’m pretty close to the max for all six tires. I need to get four corners weight unfortunately have no way of doing that where I live. 100 psi seems about right for the comfort. I keep an eye on the temperature while driving.

 

[Holdmybeer]

Four corner weighing is not permitted at Cat Scales and is otherwise imo unnecessary. Get a front and rear axle(s) weight and don’t be afraid to adjust the psi accordingly. Most MH operators are running around with tires inflated to pressures in excess of what is necessary for the load.