Correct 3x2 (tripower) throttle spring setup with A/C

[Jay G.]

I have searched the archives and cannot find anything related to what the correct spring and spring bracket is for a 1969 400hp car with A/C so I am hoping someone here has "been there, done that" already.

When I purchased my car, the accelerator return spring was hung on the fuel line to the middle carb and worked really well but now that I have the idle solenoid installed, that option is no longer available.

I purchased the orange spring and spring bracket from Paragon that attaches to the rear carburetor but the combination doesn't work very well.

When I attach the spring to the bracket, the spring is stretched almost to its limits at idle and the throttle arm is really hard to move. I cannot believe this is the way it was originally from the General but I cannot see any other way to mount the spring.


Regards,

Jay

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Anyone with a tripower (l-68 or L-71).

Regards,

Jay

[Jack C.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jay, for the orange spring, I believe there is a mounting hole on the forward area of the accelerator bracket which mounts on the rear carb.

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jack,

I have tried that spot but the spring doesn't sit well at idle and binds up on the throttle linkage when getting close to wide open so I don't think that GM engineers would have originally designed it that way. The AIM has an obscure picture that seems to show some sort of bracket that attaches to the rear carb, similar to the reproduction part I bought but I haven't been able to see a clear picture so I don't know for sure if what I have is "correct".

What color spring are you using on your '68 and do you have it attached to the cable bracket? At this point I am more interested in functional that correct but if I can accomplish both that would be the best outcome.

Regards,

Jay

[Jack C.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

I have the yellow one on the rear and the long one on the front that mounts to the fuel line. I really don't see how the bracket can work. I tried it and found it to be no good.

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Would it be possible for you to post a picture of your setup? The yellow one looks even shorter that the orange so I don't beleive that would work any better for me but I might not be visualizing your setup correctly.

Were did you get the longer one from?

Thanks,

Jay

[Jack C.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

The longer one is original. I think Cranes Corvette makes one that is close. I'll see if I can post the pix.

[Jack C.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Let's see if this works.

[John C.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jay

The older Paragon catalogs used to have a picture catalog that showed how the bracket and spring mounted. It is no longer in the current one. Do you have any old catalogs available to look at? It's on page 44 of the v28 2003 catalog.

John

[Jamie F.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jay,
That bracket isn't used on a '69 3x2 even though Paragon says it is.
Here is a pic of the correct setup for the orange sping.
I don't see any binding with it this way at WOT...

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Let's see if this works.

Thanks for the pictures.

I used to have my spring attached as you do to the fuel line but I recently installed the A/C idle solenoid that was missing and now that option isn't available to me anymore. Is that the correct positioning for a '68?

Also, thanks for the suggestion about Crane's, I will contact him and see what springs he has. I have found that "correct" parts from different sources quite often look much different so maybe I just have bad "correct" parts.

Regards,

Jay

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jay

The older Paragon catalogs used to have a picture catalog that showed how the bracket and spring mounted. It is no longer in the current one. Do you have any old catalogs available to look at? It's on page 44 of the v28 2003 catalog.

John

John,

Thanks for the tip. I may still have an older Paragon catalog hidden away and will take a look tonight. If I cannot find a old copy, is there anyway you can scan or take a picture of the page you are referencing and post it here?

Thanks

Jay

[Jay G.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

Jay,
That bracket isn't used on a '69 3x2 even though Paragon says it is.
Here is a pic of the correct setup for the orange sping.
I don't see any binding with it this way at WOT...

Jamie,

Thanks for the picture. I will try your setup again tonight but as I recall, it didn't work very well. The spring seemed really tight while in the idle position and when at WOT, seemed like it would just stretch out.

Where did you get your orange spring from? Maybe the problem is that mine is too short.

Thanks,

Jay

[Jamie F.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

My new spring is from Paragon, it is the same as the original. I looked at a lot of original cars, the AIM and pictures in shop manuals and this setup seems to be as original.
I don't know where they came up with that bracket as I have never seen it in use on a 3x2???

[Pat K.]

Re: Correct 3x2 (tripower) throttle spring setup with A/C

John,

Thanks for the tip. I may still have an older Paragon catalog hidden away and will take a look tonight. If I cannot find a old copy, is there anyway you can scan or take a picture of the page you are referencing and post it here?

Thanks

Jay

Jay - I'd call Paragon and ask if they still have the older PDF catalogs that they can email to you.

Pat