"Bucking" feeling while towing in-town (trillium 1300/volvo 245) - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-13-2011, 08:41 AM   #1
Member
 
Name: Larry
Trailer: Volvo 245 pulling '71 Trillium 1300
Ontario
Posts: 60
Registry
"Bucking" feeling while towing in-town (trillium 1300/volvo 245)

On our way home with the new trailer, the highway driving was really smooth, but when we got to the city, I had some really unsettling bucking on a not-so-great stretch of road leading into the city. I could feel the trailer pulling back and pushing forward on the car as we went over some bumps - but it was almost as if we were getting into a resonant frequency where it would buck a bunch of times in a row.

The trailer is gutted so should be fairly light. The previous owner put new tires/wheels/bearings.

I have towed my utility trailer all over town without such unsettling bucking. WHen empty, it just bounces over bumps and when full I can feel the weight but I never feel like the trailer is driving the car. Any tips for troubleshooting? I'd like to start with the easiest checks and move on from there :-)

Thanks!
__________________

__________________
coalminecanary is offline   Reply With Quote
Old 10-13-2011, 09:19 AM   #2
Senior Member
 
Alistair Camelford's Avatar
 
Trailer: Trillium 13 ft 1973
Posts: 265
a set of Firestone air "helpers" in my rear coils really helped my Sienna van smooth out the Trill 1300's ride.
Likely a gutted trailer lacks the tongue weight needed for a smooth pull (10 to 15 % of trailer weight on the hitch)
I use shims and an after market tightener to keep my hitch bar snug in the cars receiver...stops clunks.
Good luck with your new rig
Alistair in The Road Toad
__________________

__________________
Alistair Camelford is offline   Reply With Quote
Old 10-13-2011, 09:36 AM   #3
Member
 
Otto's Avatar
 
Trailer: 89 Scamp 16 ft
Posts: 31
volvo

You just need some more tongue weight. I use "Airlift" spring bags in our 245.
Quote:
Originally Posted by Alistair Camelford View Post
a set of Firestone air "helpers" in my rear coils really helped my Sienna van smooth out the Trill 1300's ride.
Likely a gutted trailer lacks the tongue weight needed for a smooth pull (10 to 15 % of trailer weight on the hitch)
I use shims and an after market tightener to keep my hitch bar snug in the cars receiver...stops clunks.
Good luck with your new rig
Alistair in The Road Toad
__________________
Caution Brick towing Egg.
Otto is offline   Reply With Quote
Old 10-13-2011, 09:45 AM   #4
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,043
Registry
Quote:
Originally Posted by coalminecanary View Post
On our way home with the new trailer, the highway driving was really smooth, but when we got to the city, I had some really unsettling bucking on a not-so-great stretch of road leading into the city. I could feel the trailer pulling back and pushing forward on the car as we went over some bumps - but it was almost as if we were getting into a resonant frequency where it would buck a bunch of times in a row.

The trailer is gutted so should be fairly light. The previous owner put new tires/wheels/bearings.

I have towed my utility trailer all over town without such unsettling bucking. WHen empty, it just bounces over bumps and when full I can feel the weight but I never feel like the trailer is driving the car. Any tips for troubleshooting? I'd like to start with the easiest checks and move on from there :-)

Thanks!
I'm betting the road surface was concrete. Rythmic bucking is often caused on short trailers by a lack of competence on the part of the paver operator.
Of course you should check the grip on the hitch and the tightness of the draw bar.
The trillium 13 is particularly responsive to a friction anti-sway device since it likes to perform a slight "duckwalk" even when loaded properly.
(More of a quirk than a flaw) You should see an improvement when the axle is supporting a fully finished and properly loaded trailer.
Pavement quality and type will often affect the trailer's ride and so effect the TV's ride, and often must simply be tolerated until better pavement is found.
__________________
floyd is offline   Reply With Quote
Old 10-13-2011, 09:54 AM   #5
Member
 
Name: Larry
Trailer: Volvo 245 pulling '71 Trillium 1300
Ontario
Posts: 60
Registry
Thanks - that's good to hear about the tongue weight. I plan to raise and stiffen the 245 eventually. It's all a matter of time :-)
__________________
coalminecanary is offline   Reply With Quote
Old 10-13-2011, 10:23 AM   #6
Senior Member
 
reeves99's Avatar
 
Name: Philip
Trailer: Escape 13 /Hyundai Santa Fe
British Columbia
Posts: 472
Registry
Hi Larry,

Same thing happened to me. Our little 13 footer is smooth as silk on the freeway but in a construction zone or going over speed bumps the trailer jerks a bit. Nothing to be alarmed about. It's just a bunch of competing forces pulling and pushing different ways. Just take it slow and easy.

Of course a light, stripped down trailer will bounce on bumps more and all the advice about tires, suspension, load balance is right on. But the same thing happened when I pulled a 2 horse trailer fully loaded with a half-ton Chev pick up. It won't seem too bad when you're used to it.

Phil
__________________
It's not the size.....
reeves99 is offline   Reply With Quote
Old 10-13-2011, 10:24 AM   #7
Senior Member
 
Name: Jesse
Trailer: 1984 Scamp 13'
Maryland
Posts: 818
Double check the nut on the ball. This can produce similar symptoms. I also 2nd the hitch silencers. Quiets it down, plus less wear and tear on the hitch.
__________________
-Jesse
SOLD! - 1984 Scamp 13 in Maryland.
mcbrew is offline   Reply With Quote
Old 10-13-2011, 03:28 PM   #8
Member
 
Name: Larry
Trailer: Volvo 245 pulling '71 Trillium 1300
Ontario
Posts: 60
Registry
Our receiver is basically fused in with rust. I have to verify that the ball is tight and the hitch is tight to the ball. Thanks for the tips!
__________________
coalminecanary is offline   Reply With Quote
Old 10-13-2011, 03:42 PM   #9
Member
 
Name: Sean
Trailer: Bigfoot
Saskatchewan
Posts: 91
defintaly check the hitch on the trailer, I had borrowed a 13ft trillium for a wedding and encountered the same issue over a particularity undulating section of highway. The trailer had previously managed a partial escape on the owners TV as the coupler was very loose. I gave the nut a few more turns and it helped a bit, probably could have gone a few more though.
__________________
Orcus79 is offline   Reply With Quote
Old 10-14-2011, 01:50 AM   #10
Senior Member
 
Roger C H's Avatar
 
Name: Roger
Trailer: 2009 Trillium 1300 "Homelet"/2014 Subaru Outback "Rosie"
Washington
Posts: 2,172
Registry
We had the same problem, especially on concrete with the seams.

It turned out to be the ball was not torqued to the correct specification. I tightened it to 100 in-lbs.

Read this thread. I found the solution in post #24.

Jerking while towing
__________________
A charter member of the Buffalo Plaid Brigade!

Whether you think you can or think you can't, you're right.
Roger C H is offline   Reply With Quote
Old 10-14-2011, 07:25 AM   #11
Member
 
Name: Larry
Trailer: Volvo 245 pulling '71 Trillium 1300
Ontario
Posts: 60
Registry
Great thanks... It's hard to search for this stuff when the terminology is almost completely subjective (bucking, jerking, galloping...).

We won't be towing this little guy for a while yet so I suppose this issue isn't urgent but it's good to rack up a few solutions before it does become so :-)
__________________
coalminecanary is offline   Reply With Quote
Old 10-17-2011, 05:05 AM   #12
Senior Member
 
Roger C H's Avatar
 
Name: Roger
Trailer: 2009 Trillium 1300 "Homelet"/2014 Subaru Outback "Rosie"
Washington
Posts: 2,172
Registry
Talking Oops

Quote:
Originally Posted by Roger C H View Post
We had the same problem, especially on concrete with the seams.

It turned out to be the ball was not torqued to the correct specification. I tightened it to 100 in-lbs.

Read this thread. I found the solution in post #24.

Jerking while towing
That is 100 ft-lbs, not in-lbs.

Darn Gremlins.
__________________
A charter member of the Buffalo Plaid Brigade!

Whether you think you can or think you can't, you're right.
Roger C H is offline   Reply With Quote
Old 10-18-2011, 12:59 PM   #13
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,306
Registry
I've found a few things that can cause this feeling.
Concrete roads when your speed and the expansion joints are in sync.
Tires under inflated.
Ball and hitch not the same size or not adjusted properly.

The last two you can fix, the first the only thing you can do is slow down. However slowing down can get you closer to in sync and make it worse. DO NOT speed up, loss of control is more likely to happen at higher speeds.
__________________

__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Reply

Tags
trillium


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
"Original" Trillium Factory KEY RING/CHAIN? Dave Baston General Chat 0 06-09-2010 05:53 PM
I am the proud owner of a "new" 1973 Trillium 1300 Rob L General Chat 7 11-04-2009 11:47 PM
1970's Trillium 1300 converted to "toy hauler" $700 Raya Classified Archives 0 08-31-2009 11:31 PM
My "new" 1977 Trillium 1300 jimliston Problem Solving | Owners Helping Owners 12 02-10-2008 10:21 AM
Anyone put 14" tires on 1300 Trillium? H. Fred Fuller Towing, Hitching, Axles and Running Gear 6 07-01-2007 10:06 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:30 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.