Couple of questions...
I have a new (2017) Class C, Thor Freedom Elite 29FE on a Ford Chassis. My first question is this: At speeds of 30 to 50, there's a bumping sensation that feels like a tire out of balance. Is it possi...
Forum Discussion
Tires/wheels out of balance will be noticed most at a particular speed, and at harmonics of that speed (e.g. if noticed at 50 mph, it should occur also at 100 mph). The same holds for other rotating parts like driveshafts (which will link to road speeds) or crank assemblies (which will link to RPMs). The range 30-50 MPH is kind of broad, but an out of balance at 30 MPH should show up again at around 60 MPH.
The key alignment specification on the E-Series chassis is caster, not camber. With E-350/450 chassis RVs often heavy on the rear, light on the front, which should be at the upper end of the adjustment range, for maximum tendency to return to center. The other factor is size of contact patch on the front tires; the E-Series gets feeling really loose when the contact patch is too small, so front tires should be inflated to no more than what is needed to carry the load. The 80 PSI recommended for maximum load on the tire is way too much for the actual load on the axle.
Get the alignment and tire pressures right before spending more money on add-on steering centering devices.
The key alignment specification on the E-Series chassis is caster, not camber. With E-350/450 chassis RVs often heavy on the rear, light on the front, which should be at the upper end of the adjustment range, for maximum tendency to return to center. The other factor is size of contact patch on the front tires; the E-Series gets feeling really loose when the contact patch is too small, so front tires should be inflated to no more than what is needed to carry the load. The 80 PSI recommended for maximum load on the tire is way too much for the actual load on the axle.
Get the alignment and tire pressures right before spending more money on add-on steering centering devices.
