Smoothing out trailer ride - Fiberglass RV


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Old 06-14-2009, 11:09 PM   #1
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Name: lee
Trailer: trailswest campsterl, 1996 Scamp 16 foot
Idaho
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Does anyone have suggestions as to how to smooth out the trailer ride. The contents in our 13 foot Burro look like they have been subjected to a mixmaster when we arrive at out destination ?
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Old 06-15-2009, 12:40 AM   #2
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Trailer: 1972 boler American and 1979 Trillium 4500
Ontario
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You don't say how old your trailer is, or how old the axle is. What you describe could be a sign of either a worn out torsion axle or not enough load on a newer axle.
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Old 06-15-2009, 09:27 AM   #3
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You don't say how old your trailer is, or how old the axle is. What you describe could be a sign of either a worn out torsion axle or not enough load on a newer axle.
Probably the only thing you can do is upgrade or tighten the cabinet catches. I had the same problem so I shaped some out of aluminum and bolted them on with aircraft nuts. The Scamp roller catches were always getting loose.
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Old 06-15-2009, 10:04 AM   #4
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Trailer: trailswest campsterl, 1996 Scamp 16 foot
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You don't say how old your trailer is, or how old the axle is. What you describe could be a sign of either a worn out torsion axle or not enough load on a newer axle.

Roy The trailer is a 1985 U-haul and I assume the axle is the original.
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Old 06-15-2009, 09:07 PM   #5
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Burro or Uhaul?
Either way, I'm not familiar enough with them to comment on the type of axle. Maybe somebody else can pipe in with the answer.
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Old 06-16-2009, 06:02 AM   #6
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Are you using automotive radial tires? As I understand it, car tires are thinner walled than trailer tires and as a result you will get more bounce. Also, last year we changed and upgraded the tired old axle on our '84 trailer and there was a huge change in the amount of bounce. That old original axle was rated at 1350 lbs and I suspect that our loaded towing weight was getting pretty close to it's maximum.
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Old 06-16-2009, 12:05 PM   #7
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Name: lee
Trailer: trailswest campsterl, 1996 Scamp 16 foot
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Are you using automotive radial tires? As I understand it, car tires are thinner walled than trailer tires and as a result you will get more bounce. Also, last year we changed and upgraded the tired old axle on our '84 trailer and there was a huge change in the amount of bounce. That old original axle was rated at 1350 lbs and I suspect that our loaded towing weight was getting pretty close to it's maximum.

I am running ST bias ply tires and am in the process of replacing the tires. I am thinking maybe ST radials and perhaps that will help with the ride as versus bias ply but I am a little concerned that the softer sidewall of the radial may lend itself to sway? Lee
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Old 06-16-2009, 01:59 PM   #8
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Trailer: 1978 Trillium 13 ft
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I am running ST bias ply tires and am in the process of replacing the tires. I am thinking maybe ST radials and perhaps that will help with the ride as versus bias ply but I am a little concerned that the softer sidewall of the radial may lend itself to sway? Lee
We just finished a week-long outing - over 1300 miles - with new Carlisle [b]radial trailer tires, and our camper (13' Trillium) bounced less and rolled nicer than with the old bias ply tires that were on it. Early indications are that the mileage is 1+mpg better.

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Old 06-16-2009, 06:03 PM   #9
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The problem could be in the tow vehicle. We always had the same problem with cabinet contents.

Also (unrelated), the rear suspension of my Pathfinder is quite soft and would squat noticeably when we hitch up our Casita. So I installed air bags to firm up the rear springs. And guess what? The stuff in the cabinets stopped scrambling itself! I never realized the ride was that bouncy but I guess it was.

Marv (not Marv W, another Marv)
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Old 06-16-2009, 06:28 PM   #10
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How fast are you driving?
What's the tongue weight? Is it 10-15% of the total trailer weight?
Towing tongue up, tongue down... or level?
If you have boxes of food or coolers, put those right over the axle in the trailer.

Okay, I'm out of ideas.
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Old 06-17-2009, 01:53 AM   #11
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Lee.

You might want to have the trailer wheels balanced, if not already done. Shock absorbers can make a big difference. Monroe makes a kit for trailers, welding required. We have shock absorbers on our trailer.
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Old 06-18-2009, 04:44 PM   #12
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Name: lee
Trailer: trailswest campsterl, 1996 Scamp 16 foot
Idaho
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We just finished a week-long outing - over 1300 miles - with new Carlisle [b]radial trailer tires, and our camper (13' Trillium) bounced less and rolled nicer than with the old bias ply tires that were on it. Early indications are that the mileage is 1+mpg better.

MarvonW.
Marvon Thanks for your input I am sitting on the fence between bias ply and radial. Your experience may make the decision for me. Lee
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Old 06-18-2009, 04:48 PM   #13
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Name: lee
Trailer: trailswest campsterl, 1996 Scamp 16 foot
Idaho
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The problem could be in the tow vehicle. We always had the same problem with cabinet contents.

Also (unrelated), the rear suspension of my Pathfinder is quite soft and would squat noticeably when we hitch up our Casita. So I installed air bags to firm up the rear springs. And guess what? The stuff in the cabinets stopped scrambling itself! I never realized the ride was that bouncy but I guess it was.

Marv (not Marv W, another Marv)

Another Marv We are towing with a Honda Ridgeline and there is not any noticeable "squat" when we hook up. We also pull a 3300 lb stickie ( probably 3900 lbs loaded ) with some "squat" but not much. That's why my suspicions lean towards the trailer.
Thanks Lee
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Old 06-18-2009, 04:52 PM   #14
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Name: lee
Trailer: trailswest campsterl, 1996 Scamp 16 foot
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How fast are you driving?
What's the tongue weight? Is it 10-15% of the total trailer weight?
Towing tongue up, tongue down... or level?
If you have boxes of food or coolers, put those right over the axle in the trailer.

Okay, I'm out of ideas.

Donna I try to stay at about 62 mph and seldom exceed that. I think tongue weight is o.k. as the we are pretty much tongue level, maybe just a little down. We will try putting more of our stuff right over the axle and see if that helps. Thanks Lee
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