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bouncing

PostPosted: Thu Aug 22, 2013 12:05 am
by campwithme
Ok when im going down the road my trailer bounces... need help..
:x

Re: bouncing

PostPosted: Thu Aug 22, 2013 4:35 am
by les45
Need more info: what kind of tires? type of trailer? approximate weight of trailer? etc.

Re: bouncing

PostPosted: Thu Aug 22, 2013 5:29 am
by bobhenry
Perhaps a better road ? :laughter:


O.K. O.K. I'll get serious...... Tire pressure : can you lower it a bit?

Are you fully loaded as you would be for camping ?

Camping gear can add 150 to 300 pounds !

If this is an old style frame perhaps you are just sprung too heavy.

Re: bouncing

PostPosted: Thu Aug 22, 2013 7:10 am
by absolutsnwbrdr
Mine bounces a little too. Havent figured out why yet. :thinking:

Image

Re: bouncing

PostPosted: Sat Aug 24, 2013 6:20 am
by campwithme
ok trailer loaded weights 1000 lbs. I have golf crate tires tried different tire pressures.

Re: bouncing

PostPosted: Sat Aug 24, 2013 6:22 am
by campwithme
I don't know how to add pics

Re: bouncing

PostPosted: Sat Aug 24, 2013 7:53 am
by Kody
To paste photos here, go to "Photobucket", register with them, it's free. Choose a name and password for your albums then follow the prompts to upload your photos, Select the photo you want to bring across to the forum. Click on the small box that says "image.....". Copy the image address then go to the "Post a Reply" here and simply paste the address into the box you type into. Do not use any of the formatting from the info bar displayed at the top of this box. Click "Preview" and the photo should instantly appear in the format it will then be seen. It's not hard or complicated to do.

A common cause of bouncing is when the spring leaves have rusted together. If possible, take them off the axle and dismantle them. Run a 4" disk sander on the leaves to remove any rust then lubricate the leaves with grease and reassemble. Lubrication of the spring leaves makes a huge difference to their performance. Some people prefer not to lubricate the leaves as it can lessen the dampening affect due to friction between the leaves but I would lubricate them regardless to make sure they are working. The grease will work its way out eventually regardless.

Kody

Re: bouncing

PostPosted: Sat Aug 24, 2013 7:02 pm
by doug hodder
Swap out the springs with a pair for a lighter load. Springs are actually pretty inexpensive. With a golf cart type tire, it sounds like you used a pop up trailer axle set up. Pop up's aren't all that light so it was probably sprung heavier than you need. FWIW. Doug

Re: bouncing

PostPosted: Sat Aug 24, 2013 7:55 pm
by Kevin A
Is this the frame you used?
Image
Image

Re: bouncing

PostPosted: Sat Aug 24, 2013 9:47 pm
by working on it
campwithme wrote:ok trailer loaded weights 1000 lbs. I have golf crate tires tried different tire pressures.

I don't know if your tires are like these http://recstuff.com/18.5-8.508-Load-Range-C-Bias-Ply-Trailer-Tire.aspx, but if they are, then you might be overtaxing your tires. At 1000 lbs, you would be 7% over max @ 50psi. Maybe what you're experiencing isn't really bouncing (heavy springs and/or overinflated tires), but the squirming and flex of the tires' sidewalls. Not enough tire for the load. In a similar vein: My accountant father, long gone now, once told me that the shocks were bad or something on his pickup (3/4 ton with 16.5" diameter wheels), so when he dropped by one night, I took a test ride. It sure rode loosely. I asked to drive, and yep, it was squirming even on straight roads. I stopped, got the flashlight and tire pressure gauge, and checked all four tires...10-12psi on all four! (A friend at work had deflated them for him, for driving in snow!) Those tires were intended for 80 psi; I was amazed they hadn't come unseated off the rims. Properly inflated the tires at the first gas station, then the pickup had a firm but really positive feel. It was only two years old, so no problems existed except for gross under-inflation. Maybe not the same situation for you, but the point is that the tires and springs need to be working together and be in the same ballpark as the intended loads carried. My trailer, as usual for me, tests the envelope, but manages to be slightly within its' limits.

Re: bouncing

PostPosted: Mon Aug 26, 2013 10:10 pm
by campwithme
sorry I didn't use a popup trailer... it was motor cycle trailer... and the only thing I use from it was the axle.

Re: bouncing

PostPosted: Mon Aug 26, 2013 10:16 pm
by campwithme
gallery/image.php?mode=thumbnail&album_id=2571&image_id=94714 does this help...I think I just need to move the front hanger up and inch...... :oops:

Re: bouncing

PostPosted: Mon Aug 26, 2013 11:47 pm
by Kody
How many leaves are your springs made with? It's a bit hard to see in the photo. If you have four leaves, try removing one. This will take out the extreme bouncing immediately.

Kody

Re: bouncing

PostPosted: Tue Aug 27, 2013 1:19 am
by campwithme
ok there 1750 lbs. springs and I did remove the bottom spring.... I think there 5 springs

Re: bouncing

PostPosted: Tue Aug 27, 2013 1:35 am
by campwithme
I hope this pic helps... I think the bracket needs to be moves forward about and 1 in.....gallery/image.php?mode=thumbnail&album_id=2571&image_id=111604