Springs On C/T qeestion

Submitted: Saturday, May 16, 2009 at 14:52

ThreadID: 68887 Views:2405 Replies:6 FollowUps:10

This Thread has been Archived

Member - Mark G Gulmarrad

gday all.

These are the springs that i have under my C/T and just wondering, i want to put another spring or two with these ones.what does anyone suggest?
The added spring or two is for added weight.Not much,but you know how much gear you have to take when kids are involved. :-)

cheers.

Image Could Not Be Found

Back Expand Un-Read 0 Moderator Share

Reply By: Member - Axle - Saturday, May 16, 2009 at 15:11

Saturday, May 16, 2009 at 15:11

G/Day Mark

Looks pretty good to me, have seen a lot worse on things twice the size!..lol. Maybe replace the u bolt lock nuts with the nylon lock type ,have seen trouble in that area before.

Cheers Axle.

AnswerID: 365228

Follow Up By: Shaker - Saturday, May 16, 2009 at 16:01

Saturday, May 16, 2009 at 16:01

Correctly locked nuts should be better than nylocs.

FollowupID: 632886

Follow Up By: Member - Axle - Saturday, May 16, 2009 at 17:55

Saturday, May 16, 2009 at 17:55

Nope!, Disagree the first nut must be locked to the U bolt thread , then lock nut. the other way nothing is locked to the thread , each nut is locked to each other, and so both just turn together.

Cheers Axle.

FollowupID: 632906

Follow Up By: Shaker - Saturday, May 16, 2009 at 18:22

Saturday, May 16, 2009 at 18:22

I have had nylocs, which are designed for one time use only, vibrate loose.

Locknuts only turn together if they are incorrectly locked, a lot of people tighten up the first nut, then just tighten the second nut against the first.

FollowupID: 632911

Follow Up By: Member - Axle - Saturday, May 16, 2009 at 18:36

Saturday, May 16, 2009 at 18:36

MMMMM!, My point is if the nut is not locked to the thread in anyway, then you can have ten together!!, and they will all turn together if the pressure is released from the first one taking the load!, Anyway this is driving me nuts!!!.

Cheers Axle.

FollowupID: 632915

Follow Up By: fatboy - Saturday, May 16, 2009 at 18:42

Saturday, May 16, 2009 at 18:42

Double nut ifs fine , all the two nuts do is remove the clearance in the thread and give metal to metal contact on the flank of the thread , this has been used in heavy industry forever with more vibes than a springpack will ever cop

FollowupID: 632918

Follow Up By: Member - Axle - Saturday, May 16, 2009 at 19:01

Saturday, May 16, 2009 at 19:01

O'HWell, I'm involved in heavy industry , Hence my replys!,

Just Maybe, Metric thread, Unf, American coarse, BSF, Whitworth, May have some bearing on this subject....LOL.

Cheers Axle.

FollowupID: 632921

Follow Up By: fatboy - Saturday, May 16, 2009 at 20:08

Saturday, May 16, 2009 at 20:08

Me to 22 years as a fitter and turner , you are correct the pitch and flank angle definetly have a bearing an surface area of contact as does the type of material the thread is cut on etc, etc even the specified fit and thread depth , I just thought i would throw in my 2 cents , not saying that nylocs are bad , if worried just use some loc tite 609 and be done with it , they dont call it fitters friend for nothing :-)

FollowupID: 632938

Follow Up By: Member - Axle - Saturday, May 16, 2009 at 20:45

Saturday, May 16, 2009 at 20:45

Lol !! Fat Boy, all the fitters i know are great blokes!!, Just need two of everything, in case they stuff the first one up!!!....LOL,(no offence) Definitley loctite!.

Cheers Azle.

FollowupID: 632947

Follow Up By: Matt.D (WA) - Saturday, May 16, 2009 at 23:19

Saturday, May 16, 2009 at 23:19

Put the U-bolts upside down then they have to vibrate uphill not down. :-)

FollowupID: 633003

Reply By: Louie the fly (SA) - Saturday, May 16, 2009 at 15:44

Saturday, May 16, 2009 at 15:44

Mark, you should be able to fit a single thicker helper leaf on there. Best bet is to talk to a spring maker. I put 10mm helper leaves on the back of my old car, with teflon inserts, and the ride is sweet. It's clacker is only 3 inches off the ground but the ride is so smooth and predictable with no floating or bounce. (& I can load up the boot and not be worried about scraping my rear bumper on speed humps.)

It should work the same for your camper I would expect. You have ample U bolt length to do it without changing them as well. I'd replace the 2 nuts with nyloc nuts also.

Nice rubber boots by the way...

Cheers

Louie

AnswerID: 365231

Reply By: Shaker - Saturday, May 16, 2009 at 16:03

Saturday, May 16, 2009 at 16:03

What is the tare & ATM?
Looks very heavily sprung to me, as are most leaf sprung camper trailers.
Often they perform better by removing, rather than adding spring leaves.

AnswerID: 365234

Follow Up By: Moose - Monday, May 18, 2009 at 13:48

Monday, May 18, 2009 at 13:48

Agree Shaker.
Mine was way oversprung. Romoved a couple of leaves as well as those w spring thingies and had shockies fitted. Now the wheels actually move up and down over obstacles rather than the whole trailer jumping over things.
Cheers from the Moose

FollowupID: 633200

Reply By: travelguy62 - Saturday, May 16, 2009 at 16:13

Saturday, May 16, 2009 at 16:13

Hi Mark,
Your spring packs now look like they are heavy duty rated 1200kg units.If you need more springs than what you have now,you may need to weigh your trailer.It is only rated to 750kgs without brakes.The better option is to fit shocks to control what the spring does and it will help them survive on rough roads.Early Rover front shocks fit most spring setups.
Cheers Guy

AnswerID: 365236

Reply By: Members Paul and Melissa (VIC) - Saturday, May 16, 2009 at 16:18

Saturday, May 16, 2009 at 16:18

I haven't actually weighed mine but at a guess it fully loaded would be 7 to 800kg, maybe a bit more and mine sprung as it is handles and rides fine, on corrugations let tyres down and all is good.i think the rebound spring works but who really knows unless you take them out and repeat the process. as for nyloc's this was my solution.Image Could Not Be FoundImage Could Not Be FoundImage Could Not Be Found

AnswerID: 365237