Gorilla spring
#3
Race Director
Member Since: Nov 2000
Location: Beverly Hills (Pine Ridge) Florida
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Here is the info that I had previously wrote (about installing the C1 return spring).
No special tool is required other than a large Crescent Wrench (12" or so). Assemble the spring at the bottom, then assemble it onto upper bracket (the bracket that bolts to the cross shaft), then assemble the bracket to the cross shaft using the bottom bolt only (leave this bolt loose so that the bracket can pivot in relation to the cross shaft). Then attach the Crescent wrench to the top of the bracket (across the upper end of the bracket - about a 1" gap at the Crescent wrench) and pivot the bracket into place and insert the top bolt. Adjust the bracket via the Crescent wrench (in relation to the cross shaft) so that the specified effort is obtained at the pedal, and then tighten the 2 bolts (see the ST-12 for adjustment procedure - you do have the ST-12 don't you?).
Hope this helps,
Plasticman
No special tool is required other than a large Crescent Wrench (12" or so). Assemble the spring at the bottom, then assemble it onto upper bracket (the bracket that bolts to the cross shaft), then assemble the bracket to the cross shaft using the bottom bolt only (leave this bolt loose so that the bracket can pivot in relation to the cross shaft). Then attach the Crescent wrench to the top of the bracket (across the upper end of the bracket - about a 1" gap at the Crescent wrench) and pivot the bracket into place and insert the top bolt. Adjust the bracket via the Crescent wrench (in relation to the cross shaft) so that the specified effort is obtained at the pedal, and then tighten the 2 bolts (see the ST-12 for adjustment procedure - you do have the ST-12 don't you?).
Hope this helps,
Plasticman
The following users liked this post:
solidaxel (08-26-2017)
#4
Team Owner
Here is the info that I had previously wrote (about installing the C1 return spring).
No special tool is required other than a large Crescent Wrench (12" or so). Assemble the spring at the bottom, then assemble it onto upper bracket (the bracket that bolts to the cross shaft), then assemble the bracket to the cross shaft using the bottom bolt only (leave this bolt loose so that the bracket can pivot in relation to the cross shaft). Then attach the Crescent wrench to the top of the bracket (across the upper end of the bracket - about a 1" gap at the Crescent wrench) and pivot the bracket into place and insert the top bolt. Adjust the bracket via the Crescent wrench (in relation to the cross shaft) so that the specified effort is obtained at the pedal, and then tighten the 2 bolts (see the ST-12 for adjustment procedure - you do have the ST-12 don't you?).
Hope this helps,
Plasticman
No special tool is required other than a large Crescent Wrench (12" or so). Assemble the spring at the bottom, then assemble it onto upper bracket (the bracket that bolts to the cross shaft), then assemble the bracket to the cross shaft using the bottom bolt only (leave this bolt loose so that the bracket can pivot in relation to the cross shaft). Then attach the Crescent wrench to the top of the bracket (across the upper end of the bracket - about a 1" gap at the Crescent wrench) and pivot the bracket into place and insert the top bolt. Adjust the bracket via the Crescent wrench (in relation to the cross shaft) so that the specified effort is obtained at the pedal, and then tighten the 2 bolts (see the ST-12 for adjustment procedure - you do have the ST-12 don't you?).
Hope this helps,
Plasticman
The following 2 users liked this post by Frankie the Fink:
63Corvette (08-26-2017),
solidaxel (08-26-2017)
#6
Le Mans Master
Do like Plasticman said. It is described in the ST-12. People have been cussin' at installing the gorilla spring for years but if they follow the instructions written by Chevrolet over 50 years ago, it takes less than 1 minute to install it. I've seen people make special tools, pullers etc. or wedge washers in it to expand it enough to get it hooked up and I laugh my azz off. If they only knew how to read the service manual.
Jim
Jim
#9
Hi,
we've had our 61 in the family since 1963, and trying to install the gorilla spring, and appears to be a couple inches too short, is this right? Should it have to be extended thta much to connect to the linkage from the frame?
we've had our 61 in the family since 1963, and trying to install the gorilla spring, and appears to be a couple inches too short, is this right? Should it have to be extended thta much to connect to the linkage from the frame?
#10
Safety Car
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It's not too short if it's factory type spring. In Franks picture, the bracket pivots down on the lower bolt, then attach the spring, then use the crescent wrench to bring it up to the top and line up the bolt hole for the top bolt and tighten everything down.
#11
Team Owner
Make SURE you have the hook at the top and the hairpin clip at the bottom of the spring per the picture - I've actually seen the Bubba'ed in that regard. Rocking the Z-bar as indicated you will come to a 'sweet spot' where the spring almost falls on - then you'll ask yourself what the big deal was...
#12
Team Owner
Make SURE you have the hook at the top and the hairpin clip at the bottom of the spring per the picture - I've actually seen the Bubba'ed in that regard. Rocking the Z-bar as indicated you will come to a 'sweet spot' where the spring almost falls on - then you'll ask yourself what the big deal was...
#13
I've got an old Model A jack that the top will fit right between the 531367 clip and the black arm with the red lines drawn on it. I just jack it up till I could get the top bolt in. Worked well for me. You need to make sure that horse show clip is snug on the frame. Had one to pop off in traffic and never could find it. Don't know why the did not weld that in place.
#14
Success, I've had it installed wrong for 35 years since i did a frame off restauratuon..
#15
Safety Car
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