Trucks & Trailers - empty trailer bouncing tongue

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View Full Version : empty trailer bouncing tongue

01-31-2012, 02:30 PM
My boat has been in a boatel for six years and the trailer has been parked for that time. I bought new bearings and tires and installed them this week. I took the trailer for a spin with my new truck and i could feel every bump from the trailer. The tires were rolling smoothly and were not bouncing at all; it felt like the tongue was bouncing up and down and that was transferring to the truck. The trailer is single axle and is level. should I have the trailer tilted backwards slightly?

01-31-2012, 04:37 PM
What kind of truck? Might be with the stiff suspension of the trailer and the unloaded conditions you are seeing more movement of the trailer. Also after sitting for six years how are the leafs? Or is it torsion? A frozen torsion may be some of the problem. More info on the trailer suspension may help.

01-31-2012, 05:08 PM
tacoma. it is leaf spring and they look better than they should considering their age. I pick up the boat tomorrow and hopefully it's just due to the light load.

01-31-2012, 05:20 PM
you should be fine once you put the boat on it. A single axle trailer will bounce a lot more than a tandem trailer with nothing on it.
Good luck

01-31-2012, 05:21 PM
An empty boat trailer, especially aluminum, will bounce and wiggle like crazy sometimes. I thought the same thing when i first towed an unloaded trailer. Dont worry about it!

01-31-2012, 05:22 PM
You don't want to tilt the trailer backwards, that will cause some Hellified swaying. It's more than likely that because the trailer is not under load,that the rails of the trailer are flexing under their own weight. More common with long, single axle trailers. Don't sweat it.

01-31-2012, 05:23 PM
Above were posted while I was typing, a little slow these days, LOL

02-02-2012, 10:43 AM
Make sure those new tires are fully seated on the rim, both sides.
I had new tires put on and they held air just fine.
One side bounced like crazy going down the road.
Could not tell why as nothing was obvious.
Until I looked at the one rim at the bead on the inside and saw it was not seated fully.
Evidently that caused the tire to be slightly out of round.

02-03-2012, 06:26 AM
I have a utility trailer that pulls like you describe unless there is at least a few hundred pounds in it. I would suggest you wait until the boat is on there before you worry about how it handles.

02-03-2012, 10:45 AM
after loading the boat it felt much better. Amazing that I felt the empty trailer more than when the boat was loaded.

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