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Ecklers AutoMotive
Username Post: 67 coil springs        (Topic#354749)
hdchevroletusa 
Poster
Posts: 46

Reg: 11-15-13
01-07-19 08:53 AM - Post#2756775    

Wow, did I ever step into something that's over my head!
Changed coils on my 61 Bubbletop and my 67 Camaro. No problems.
The 67 is a different animal. The single bushing lower control arm has different geometry and I can't compress the spring enough to get it at the correct angle to seat properly.
The Service Manual says to disconnect the bushing from the frame and use a special steel rod and a 5" block of wood cut at a special angle to jack up the control arm.
Need some help. Any advice?
THANK YOU!!!!



 
Ecklers AutoMotive
mjc1 
Senior Member
Posts: 1531
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-07-19 04:30 PM - Post#2756806    
    In response to hdchevroletusa

I've always just used a 4 hook/threaded rod spring compressor on the bench, and very carefully (with the spring secured), slowly worked it to compression. It is a scary job for sure, but if you fit the compressor like designed, use some never seize on the threads and go slow (no airtools allowed!), you'll get the spring (potential bomb) to the point you can get it in. The 4 arm compressor will, properly installed, bring the spring into that proper arc required to bring the arm pocket up to meet it correctly. That arc imop is key. Just figure it out how the pigtails of the spring fit in the pockets before orienting the compressor for that correct arc. It takes some time to figure it out, but it has worked every time for me.
I've always just disconnected the upper ball joint and strut rod and let the arm and spindle hang down supported on a trolley jack. Use a strong bungy cord or black strap attached to the top of the wheeltub, connected to the spindle to keep it from flopping around when disconnected. Cheers, Mark.

1967 Grande Parisienne 4DR HT
My Flickr page



 
BigDogSS 
"10th Year" Silver Supporting Member
Posts: 4750
BigDogSS
Loc: SoCal
Reg: 12-21-01
01-07-19 09:32 PM - Post#2756833    
    In response to mjc1

ONLY use a heavy-duty INSIDE spring compressor. NEVER use an outside spring compressor or one designed for struts.

    1967 Chevrolet Impala SS convertible 327 - Ermine White C1 - VCCA Senior Award
    1967 Chevrolet Impala SS Sport Coupe 396 - Marina Blue FF - personal "barn-find" lol



Edited by BigDogSS on 01-07-19 09:32 PM. Reason for edit: No reason given.

 
mjc1 
Senior Member
Posts: 1531
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-08-19 10:46 AM - Post#2756878    
    In response to BigDogSS

Absolutely BigDog, the inside type only!

1967 Grande Parisienne 4DR HT
My Flickr page



 
9Teen67Biscayne 
Contributor
Posts: 138
9Teen67Biscayne
Loc: OK
Reg: 07-29-16
01-08-19 01:38 PM - Post#2756890    
    In response to mjc1

yup - inside... until running across these springs I was only afraid of 2 things - angry women and cockroaches... you can add 67 B body front spring R &R to that ...

Tim Saepe Expertus- Semper Fidelis- Fratres Aeterni

"He must be the stupidest sonofabitch alive - but he sure is fast." - F. Gump


 
mjc1 
Senior Member
Posts: 1531
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-08-19 03:44 PM - Post#2756904    
    In response to 9Teen67Biscayne

Also, when compressed. Handle it with the care as if it could go off at any time. Some will strap or chain it as protection. Don't drop or bang it around. Make 100% sure the hooks are on correctly and make sure none of the compressor is damaged in any way. I'm no mechanic or expert, so you must consider doing this entirely at your own risk.

Here's a old image I found from years back showing what I felt was a good hook orientation that will get you that arc you'll need. You can see that by positioning the short hooks this way, you'll get an inside arc forming to that side.



1967 Grande Parisienne 4DR HT
My Flickr page



 
Rick Dorion 
"5th Year" Gold Supporting Member
Posts: 257
Rick Dorion
Loc: Accord, NY
Reg: 09-21-12
01-09-19 05:57 AM - Post#2756945    
    In response to mjc1

Great picture! Wish I had that when I did mine. I've done plenty of early camaros and started questioning my skills on this job on my 67 Bel Air.

1967 Belair - perfect floor, frame and pinchwelds. Oh boy.


 
65_Impala 
Very Senior Member
Posts: 4207

Reg: 12-29-02
01-11-19 06:51 PM - Post#2757156    
    In response to hdchevroletusa

I dropped the big screw of the spring compressor through the shock hole at the top and only used the bottom half. Just pulled the spring up enough that it would clear the arm and start into the pocket. I had to use a ratchet strap to pull it towards the inside of the car a bit. Once it was started on the lower arm spring pocket then I just jacked it up the rest of the way until the suspension would go together. A lot less compression is needed from the spring compressor then trying to compress it all the way so the suspension would go together using just the compressor. To me, the less tension and the quicker I can get the spring from being held by the compressor, the better.

Did the same thing with a C3 Corvette, but didn't need the ratchet strap.



 
mjc1 
Senior Member
Posts: 1531
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-12-19 10:56 AM - Post#2757197    
    In response to 65_Impala

Thats a real good method going through the top shock hole. But the big thread of my 4 hook won't pass though it. It's too big. Suppose you could just use a smaller heavy duty rod.

1967 Grande Parisienne 4DR HT
My Flickr page



 
hdchevroletusa 
Poster
Posts: 46

Reg: 11-15-13
01-15-19 02:29 PM - Post#2757473    
    In response to mjc1

Thanks for help guys. Working on it now. The biggest problem was the spring compressor I rented from Auto Zone only had hooks at the top. It used a plate/fork at the bottom instead of 2 hooks like at the top. Need to get the correct type of compressor. Arching the spring in the correct direction is key too.
Hopefully all goes well. I'll let you know.
Thanks again!!



 
BigDogSS 
"10th Year" Silver Supporting Member
Posts: 4750
BigDogSS
Loc: SoCal
Reg: 12-21-01
01-16-19 07:02 PM - Post#2757574    
    In response to hdchevroletusa

You should be able to use that type of spring compressor with the plate.

    1967 Chevrolet Impala SS convertible 327 - Ermine White C1 - VCCA Senior Award
    1967 Chevrolet Impala SS Sport Coupe 396 - Marina Blue FF - personal "barn-find" lol



Edited by BigDogSS on 01-16-19 07:03 PM. Reason for edit: No reason given.

 
Ecklers AutoMotive
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