Community Forums

VI Roamers · 11-14-2009, 12:31 AM

We have a twety seven foor Class B+ Triple E and notice outside tire wear is very prominent on the front wheels.

Any suggestion to numbers to set of pressures to run to offset this. Generally don't carry very much in total weight, the rig and ourselves, with total water and fuel occasionally.

We have an allignment done in the shop not too long ago, but after a good length trip those front tires are getting awfully sliced off on the outside.

What do you have them set your's too?

thanks, Mike

melvonnar · 11-14-2009, 06:37 AM

recheck your allignment; looks like its off.

Izzyblueye · 11-15-2009, 05:09 AM

Quote:

Originally Posted by VI Roamers

We have a twety seven foor Class B+ Triple E and notice outside tire wear is very prominent on the front wheels.

Any suggestion to numbers to set of pressures to run to offset this. Generally don't carry very much in total weight, the rig and ourselves, with total water and fuel occasionally.

We have an allignment done in the shop not too long ago, but after a good length trip those front tires are getting awfully sliced off on the outside.

What do you have them set your's too?

thanks, Mike

I follow Winnebago's air pressure guide lines, but in your case you surely have an alignment problem. Some of the shops are just not into motor homes for alignment. You should have your rig loaded like you are taking a trip when you have it aligned. Use a truck alignment shop for best results.

TXiceman · 11-15-2009, 09:15 AM

A couple of things to do here. 1st is to load the rig as for travel and get it weighed, front and rear axle weights. Now adjust the tire pressures according tot he weight ratings on the tires.

Next get the front end alignment checked with the coach loaded fro travel. DO NOT use a ford shop for the alignment. Take it to an independent truck frame suspension shop. Ford does not properly train their "specialists" in how to properly align the E450 chassis with a load. The "computer" specs do not work well.

Ken

RamblingRV · 11-20-2009, 07:00 PM

Once your tires have started wearing like that, they will continue to wear. If you notice significant wear and are going to do an alignment, sometimes it is best to get a new set of tires (front anyway) to go along with the alignment. Also, whenever you do get tires, make sure to get it aligned, otherwise the new ones will go quickly.

RRV

Luv2go · 11-20-2009, 07:49 PM

As Txicemen mentioned, there is a lot of leeway in the Ford alignment specs. We had our old coach, an E350-based class C aligned, first by a tire shop, after which it promptly wore out the inside of the front tires (requiring replacement

), then by an alignment shop that came highly recommended.

The second shop found worn parts that needed replacement and corrected most of the wear problems, but I still had to fine-tune the toe-in and ended up swapping the outer duals with the fronts (which were feathered by that time, but not bad enough to replace) before it was right

.

Stewart

army1sg · 12-19-2009, 08:29 PM

Quote:

Originally Posted by TXiceman

A couple of things to do here. 1st is to load the rig as for travel and get it weighed, front and rear axle weights. Now adjust the tire pressures according tot he weight ratings on the tires.

Next get the front end alignment checked with the coach loaded fro travel. DO NOT use a ford shop for the alignment. Take it to an independent truck frame suspension shop. Ford does not properly train their "specialists" in how to properly align the E450 chassis with a load. The "computer" specs do not work well.

Ken

TXiceman hit the nail on the head, after my truck service guy came by at work I had him do my E450, no more problems! He had to add shims to get it right, and I had already loaded it up with food, clothes, fuel, water and partially filled waste tanks, now it wears and steers perfect! Already spent time and money at the local Ford Truck dealer, but later found out that what they were authorized to do was "check" the alignment!

Hocky · 03-05-2010, 05:05 PM

Was looking to buy a class "A "28 foot with workhorse chassis but after checking costs of maintenance & new tires plus the check engine light came on during a test ride, I decided to look at a class "C" 26 foot in better condition for about the same price. Plus the maintenance, tires, and only 12,000 miles on the speedo said BUY ME! Both are about 6-7 years old. "C" is V10 Ford on E450 chassis. Glad the 1st offer on the "A" was turned down! Whew..... Any suggestions to check on the Class C Forest River w/1-slide? Drove then both.
Thanks in advance, Ron (Florida)