Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: AstraX on October 27, 2012, 04:37:17 PM

Title: Compressing springs
Post by: AstraX on October 27, 2012, 04:37:17 PM
So I am making an attempt at installing my spring spacers and shocks.  Having a hell of a time getting the springs back in now and I have let the axle drop as much as I can (brake lines are limiting). 

Any tips?  At the rate I'm going I won't be done until the new year.

Thanks in advance.
Title: Re: Re: Compressing springs
Post by: binare on October 27, 2012, 04:43:26 PM
Creative use of a crowbar and lots of grunting coupled with a slight pucker factor. Or you can be smart and rent a spring compressor, I personally prefer the crowbar.
Title: Re: Compressing springs
Post by: dubbleJs on October 27, 2012, 04:44:12 PM
You can rent spring compressors from auto value for free (with a returned deposit) or just but a pair of  compressors at PA for about $40. Just make sure they are clamped onto the coil straight and proper... They are under a lot of pressure once you crank them tight!
Title: Re: Re: Compressing springs
Post by: AstraX on October 27, 2012, 06:36:56 PM
Ratchet straps ftw..1 down 3 to go :-\

Title: Re: Re: Compressing springs
Post by: GreenMachine on October 27, 2012, 08:28:54 PM
Ratchet straps ftw..1 down 3 to go :-\



Have you ever seen a spring come loose under full compression? I would rent a "strut compressor" the two separate piece kind, locks onto springs, it's a little more safe.
Title: Re: Compressing springs
Post by: cLAY on October 27, 2012, 08:31:41 PM
Unbolt the calliper from the axle and let it drop more.
Title: Re: Compressing springs
Post by: LEMON-AID JAY on October 27, 2012, 08:47:48 PM
Unbolt the calliper from the axle and let it drop more.
Yup and the trac bar if you have not done so yet.
Title: Re: Compressing springs
Post by: JackstandJohnny on October 27, 2012, 09:40:35 PM

Dan, i have the spring compressors you need. if you can find your way down here  you can borrow them.

please don't use ratchet straps.......

they are the ones you can buy at PA............
Title: Re: Re: Compressing springs
Post by: .:.Dingman.:. on October 27, 2012, 09:43:27 PM
Have you ever seen a spring come loose under full compression? I would rent a "strut compressor" the two separate piece kind, locks onto springs, it's a little more safe.
Strut compressor and coil spring compressors are two different animals. I have a set of coil spring compressors if you want to borrow them I'm in the northeast.

Dingman
Title: Re: Compressing springs
Post by: heep-a-lop on October 27, 2012, 10:02:24 PM
once u seen a flying spring u will only use the correct tools that crap flys and can frickin' kill..... no word of a lie seen one hit a guy in the chest biggest blackest bruise i have ever seen...

please be carefull...  flying metal is not cool...
Title: Re: Compressing springs
Post by: AstraX on October 28, 2012, 01:27:23 AM
I will clarify... :D

I did not use ratchet straps to compress the spring, I used it to stabalize it front to rear while I worked it over the lip with a pry bar, they were there more as a fail safe in case the spring did try and pop out.  I have heard the warnings about compressing a spring incorrectly so I was trying to avoid that route.

Unbolt the calliper from the axle and let it drop more.

I thought of that, but I'm a rookie at this stuff and was a little worried about messing around with my brakes.


Thanks for all the concerns and offer for the tools.
Title: Re: Compressing springs
Post by: Bnine on October 28, 2012, 09:06:27 AM
Just listen to clay and jay. You do a 6 inch lift spring without compressing if you take the right stuff apart.

Disco shocks, trackbar, sway bar, and brake lines. Insert springs with no fight. Bolt everything back together.

Apparently it's good that you brought it up since lots of guys here are still squishing springs.
Title: Re: Compressing springs
Post by: cLAY on October 28, 2012, 09:47:51 AM
I thought of that, but I'm a rookie at this stuff and was a little worried about messing around with my brakes.

Thanks for all the concerns and offer for the tools.

Thats why its good to ask. Unbolting the caliper and laying to the side is super easy and you don't lose any fluid.
Title: Re: Compressing springs
Post by: vantagetes on October 28, 2012, 08:35:26 PM
You can use those ratchet straps to hold up the caliper, they are pretty heavy so just letting them hang from the stock rubber hoses (usually half rotten) isn't the best idea. I've done it (let them hang) but I'm also ok with changing brake lines and bleeding the system after.
Title: Re: Compressing springs
Post by: dubbleJs on October 28, 2012, 09:14:36 PM
Just listen to clay and jay. You do a 6 inch lift spring without compressing if you take the right stuff apart.

Disco shocks, trackbar, sway bar, and brake lines. Insert springs with no fight. Bolt everything back together.

Apparently it's good that you brought it up since lots of guys here are still squishing springs.


IMO compressing the spring with the proper tool is a much better way to do it and so much less work than unbolting everything holding that diff in place...?
Title: Re: Compressing springs
Post by: Bnine on October 28, 2012, 09:31:31 PM
Spring compressing is slower, dangerous, and an all around pita.

I have a set of compressors custom cut to work with the because I did that for a few years before I learned the simpler method of removing a few bolts.

Clay, to clarify I just unbolt the brake line retainer on the frame to give the line that little bit of stretch. If its a stock rig. Otherwise rigs with extended lines don't usually need the extra.
Title: Re: Compressing springs
Post by: cLAY on October 28, 2012, 09:51:32 PM
I forgot about the clip on the line. But seriously, if you've ever messed with a spring compressor, pulling the bolts for the line clips, and calipers if needed, is way easier. You have to crank for quite awhile to get that screw down far enough to compress the spring. Plus a GOOD quailty spring compressor is $200+ dollars. I don't find the cheap CT,NAPA, PA spring compressors to be easy to use or safe to use. The saddles they come with never seem to grip tight enough.

Undoing a few extra bolts is free.

If Bnine, Jay and I can all agree on something you might want to take heed.
Title: Re: Compressing springs
Post by: fug on October 29, 2012, 07:52:07 AM
If Bnine, Jay and I can all agree on something you might want to take heed.

Or start stocking up on canned goods and bottled water cause surely that's a sign of the apocalypse :) ;D ;D :D
Title: Re: Re: Compressing springs
Post by: binare on October 29, 2012, 08:35:53 AM
I found the stock arms on the front didn't flex enough even with everything undone. Used a bottle jack to push the axle down abit more and pried the spring in with the crowbar. Could do the spring without the bottle jack, but needed it for the 3/4 spacer.
Title: Re: Re: Compressing springs
Post by: binare on October 29, 2012, 08:37:22 AM
I'll clarify abit, they do flex enough, just used the jack to hold the axle down so it didn't "spring" back up.