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Hot Topic (More than 10 Replies) Building CJ3A seat springs (Read 783 times)
 
stony
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Building CJ3A seat springs
05/23/19 at 21:10:32
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OK, I should know better but have decided to build a set of 3A seat springs, since no one sells them.  I have enough of my rusty old spring for a pattern.  First thing:  order the parts and tools.  Came today.  I continue this as it moves along.
  


Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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Bob W
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Re: Building CJ3A seat springs
Reply #1 - 05/24/19 at 07:00:14
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I can't wait to follow along as you build the springs! I rebuilt the springs in one of my Jeeps from several sets of damaged original ones.
  

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stony
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Re: Building CJ3A seat springs
Reply #2 - 05/24/19 at 12:47:20
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Going to start out with what I have.  Comparing the stuff have to the original springs.  Start with the back springs.  I am lucky that I have a pretty complete back, and can see how it was constructed.  The zig zag springs that I got look about right.  Here is a photo of the back and an individual spring section.  I included my $55 Spring benders.  At first I thought “man these things are expensive”, used them to straighten out a section of spring and “ man these things are sweet” Smiley.  Anyway here we go!
« Last Edit: 05/24/19 at 12:49:43 by stony »  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #3 - 05/24/19 at 14:17:20
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Piece of cake!  One down, 49 to go.  My new springs are a tiny bit shorter than the originals, but just a matter of compensating by adding an extral zig or zag here and there.  Will probably use edge wire for the back side and springs ( if I can figure how to make them) for the face.
« Last Edit: 05/24/19 at 14:23:00 by stony »  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #4 - 05/24/19 at 14:48:23
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If you are wondering what the seat springs look like here is one next to a back spring.  The vary a bit from 3 to 4 zigs but should be easy to duplicate.  FYY I THINK CJ2A seat bottoms are more like the 3A backs, but not sure.  Mine are 4” high.
  


Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #5 - 05/25/19 at 15:22:58
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OK, Made my first big mistake, I got the wrong Spring Angry. Correct gauge (11) but the wrong shape, too compact and stiff.  Ordered the right stuff and just have to wait till it comes in.  On the bright side, got some practice in and know (kinda) what I am doing.  This does give me some time to work on my new (1953) Singer 201-2 sewing machine so I can do covers and a top.  Good thing this is all tax deductible, cuz the weather is not cooperating and I’m not getting any planting done.
« Last Edit: 05/25/19 at 15:23:25 by stony »  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #6 - 05/30/19 at 20:21:19
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OK, so the right spring came today.  You can see that it matches the original pretty well, so good to go there.  I made a couple of springs and they came out pretty well.  I think they will duplicate the feel of the original fairly closely.  I figured out how to bend them, problem is figuring how to do it quickly.  Will need 25 per bottom.  I measured mine at 4” high, do you all think that is correct?
« Last Edit: 05/30/19 at 20:26:19 by stony »  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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Bob W
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Re: Building CJ3A seat springs
Reply #7 - 05/31/19 at 20:22:31
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I measured a well used original spring and it is 4" tall.
  

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stony
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Re: Building CJ3A seat springs
Reply #8 - 06/04/19 at 13:06:00
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OK, A little progress report:  I have figured out how to make a perfect (almost😜) replica of a CJ3A seat base spring, and I think I can do it fairly quickly, so I am pretty sure that I can reproduce the base springs pretty accurately for anyone redoing there seats they are the correct height (4”) and length, they probably will not be cheap, but I should be able to figure this out in a few weeks.  Also for anyone that is looking to repair there old seats I don’t see any reason that I shouldn’t be able to provide individual springs to replace broken ones, we’ll see.  Anyway for now here is what I have:

OK I went ahead and made a set of springs, need 5 sets for a bottom.  It is interesting that the lower springs are 1 loop shorter than the uppers, so there is a bit of an overhang in the back.
« Last Edit: 06/04/19 at 16:53:41 by stony »  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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Re: Building CJ3A seat springs
Reply #9 - 06/04/19 at 20:48:04
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NICE
  

Dave Miles
Presently:                
03 Rubicon,
50 CJ3A
Past:
01 XJ Cherokee,
87 XJ Cherokee,
85 XJ Cherokee,
83 CJ8,
81 CJ7
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stony
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Re: Building CJ3A seat springs
Reply #10 - 07/23/19 at 16:20:46
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OK, have not posted in a while, but making progress at last.  Bending and putting the springs together turned out to be a real PATA, so I kinda let it drop for a while to figure out how to do it.  The reproduction CJ2A spring sets that Walcks sells were put together with three prong clips so I tried that and it did not turn out well.  So I went back and looked at how the originals were put together with coil springs wound around the seat springs.  At first it looked like a complicated nightmare, after studying it while a while it dawned on me that it was really pretty simple.  I gave it a try and was surprised how simple it is.  I have put together a jig to hold the springs when I tie them together and should get a back done pretty soon.  My goal is to be able to make some seat spring sets to sell, but that is still a ways off.  I however have gotten better at bending springs and making binding coils (that what I call them) so if you need to replace some broken parts I can probably make them for you.  Anyway here is where I am.
  


Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #11 - 08/06/19 at 12:45:04
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So!  Got the seat bottom done.  Came out pretty well.
  

Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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1955CJ-5
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Re: Building CJ3A seat springs
Reply #12 - 08/06/19 at 14:00:14
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Really nice!

I have foam inserts in my 3a..the thick ones....a little stiff to say the least.

The CJ-5 still has its original springs...a little saggy but a much better ride!

Nice work....looks a little to complicated for me...Smiley
« Last Edit: 08/06/19 at 14:00:49 by 1955CJ-5 »  

1955 CJ-5, A friend for 55 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...
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stony
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Re: Building CJ3A seat springs
Reply #13 - 08/08/19 at 18:51:04
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So, it rained today, so got the old Singer out and tried my hand at upholstery, sewed a couple of seat bottom covers.  Made a few mistakes and my stitch lines are not perfect, but not bad for a first try  Wink.  The key is go S.L.O.W a lot of turning the balance wheel by hand on the corners.  Red Naugahyde Universal.
« Last Edit: 08/08/19 at 18:51:49 by stony »  


Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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stony
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Re: Building CJ3A seat springs
Reply #14 - 08/16/19 at 10:34:05
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So, after a few more mistakes, mainly making the boxing (sides) too short (almost) I got one seat together.  The new springs are 4” high and I used the old cover as a pattern, well after sewing in the drawstring I had very little room for padding.  The originals didn’t have much either, so had to change my plans of using a couple of inches of foam.  I wound up using a old floor mat to cover the springs and then 1/2 inch hard foam and several layers of cotton batting.  Was a little worried that it would be too stiff.  Put it on the drivers side seat and went for a drive.  Turned out that it is pretty comfortable, firm but some spring to it, like it a lot.  It wound up looking pretty good too.  Still need to do the backs but so far so good.  Anyway here it is:
  


Terry
1949 CJ3A  11159   body 11225 engine 11140
On preservation vs. restoration:  Roscoe Lee Brown "the Cowboys" when he met the whores on the trail:  "Well, I have the inclination, maturity, and the wherewithall... but unfortunately I don't have the time."
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