Moparts

71 One piece throttle valve linkage(Kickdown)Re-Updated

Posted By: VITC_GTX

71 One piece throttle valve linkage(Kickdown)Re-Updated - 07/12/13 05:35 PM

I have my tranny mated up to the engine on a dolly and am trying to get the throttle valve linkage hooked up. I have the original one piece linkage that came off the car ('71 Satellite) but am have problems getting it to fit. First I will say that I replaced the stock intake/carb with an aluminum DP4B and 650 Eddy carb.

I have a couple of problems:

1) The linkage is ~2" to far towards the center of the engine and won't line up with the carb.

2) The one piece rod is hitting the back of the cylinder head.

Is the new intake/carb screwing me up that much? I didn't think that the new carb was 2" wider than the original. Were there two different setups (one for 2-brl and one for 4-brl)?

I'll try and post pics tonight.
Posted By: John_Kunkel

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/12/13 06:32 PM


To make the linkage work correctly you'll need the Edelbrock #1481 Mopar throttle lever extension.

Attached picture 7774232-Edelbrock-1481.jpg
Posted By: Kern Dog

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/12/13 06:55 PM

I wish that there were part numbers on these. I have several here that I have no use for, but I hate to throw stuff away that someone else needs. PM me if you want. I'd give you one if I have the one you need. I would probably need some pictures and measurements.
Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/12/13 07:10 PM

Do you have the adapter that john K attached ?

Also the DP4B is taller than the stock intake , how much ? maybe a 1/2" ??

But neither it or the carb would cause the linkage to hit the head , is it the same engine family as it was originally attached to ? low deck removed and replaced with a low deck ? what type of heads ?
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/12/13 09:13 PM

I do have the adapter for the Eddy carb attached. In fact adding this linkage exacerbated the problem. It makes the carb even "wider".

The engine/tranny are the original matching number pieces.
Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/12/13 09:15 PM

The eddy is not any wider , did you put it on the right side of the adapter? It goes on the side toward the carb.

edit ... I'll ask the dumb question , original 4bbl car ?
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 12:26 AM

It's originally a 2-brl car, that's why I asked earlier if it mattered between the two (2-brl/4-brl).

Here are a few pictures.

Attached picture 7774536-linkagesmall.jpg
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 12:29 AM

Here is where you can see that I had to space the throttle linkage bracket due to the higher runners on the intake manifold. It moves it inward but only like ~1/4".

Attached picture 7774541-linkage2small.jpg
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 12:31 AM

This shows where the rod hits the head. The throttle lever on the tranny is not all the way forward yet due to hitting the head.

Attached picture 7774545-linkage3.jpg
Posted By: T2R9

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 12:41 AM

You need to get a 4 barrel bracket or cut/extend the one you have. This in my 440 setup. Note the distance from where the bracket is bolted on to where it rises. 383-400 ones are a little longer due to the intake being not as wide.

Attached picture 7774557-IMG_0093(Medium).JPG
Posted By: TB3CUDA

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 01:06 AM

i think you can get a cable system,i believe lokar or boulichlin performance sells them.about the same money as a correct 4barrel kickdown,i have one off a 71 charger if you need one.
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 03:24 AM

That's my problem, I have the 2-brl bracket. I will take this one off and extend the bracket outward by welding some extend tabs on it.

I'll post some pics of the new bracket when I get it done.

Thanks to all for the help.
Posted By: PC-CHARGER

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 10:10 PM

The link (Red arrow) between the adapter and the kickdown rod needs to be moved to where the black line (black arrow) is in the diagram. The green line and green arrow shows where the kickdown return spring is connected. You may need to lengthen the link a bit or modify the entire bracket to get it to operate correctly through the full stroke of the throttle.

Attached picture 7775348-7774536-linkagesmall.jpg
Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/13/13 11:07 PM

Quote:

It's originally a 2-brl car, that's why I asked earlier if it mattered between the two (2-brl/4-brl).

Here are a few pictures.



I see I was tree'd


As you have found out yo can't use 2bbl linkage on a 4bbl setup.

Also you can't space the bracket off the intake , that makes your misalignment WORSE.

Get a 4bbl throttle bracket. The flat bar may also not be the correct length for a 4 bbl .

If you decide to get a cable system get the bouchillon , the lokar is not correct for mopar .
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:24 AM

Well, I modified my existing bracket by adding some length to the "legs" to place it over where is needed to be.

Here is where I started.

Attached picture 7775725-bracket.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:26 AM

Here is where I ended up.

Not perfect, but perfectly close enough!!

Attached picture 7775728-bracket2.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:27 AM

Seems to line up pretty close. It's not exact but I don't think it will have any problems.

Attached picture 7775730-bracket3.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:27 AM

From the back.

Attached picture 7775733-bracket4.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:29 AM

Like JohnRR said, it looks like I need to lengthen the flat bar with the slot as well.

Attached picture 7775736-bracket5.JPG
Posted By: Michael Ecks

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 04:54 AM

Definitely need to lengthen the slotted connector, but it looks like you've got things under control. That is beautiful work on short notice. Someone has mad skilz.
Posted By: T2R9

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 12:17 PM

Nice work!
Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 01:51 PM

Quote:

Like JohnRR said, it looks like I need to lengthen the flat bar with the slot as well.



Nice work , almost there.

the back of that slot needs to be against that post with the arm and linkage from the trans pulled all the way forward , that's what the spring that you don't have installed yet does .
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 09:51 PM

Quote:

Quote:

Like JohnRR said, it looks like I need to lengthen the flat bar with the slot as well.



Nice work , almost there.

the back of that slot needs to be against that post with the arm and linkage from the trans pulled all the way forward , that's what the spring that you don't have installed yet does .



Thanks for the kind words guys. I would feel a little better about it if it hadn't had taken me 3 hours to do it!!!

I have another problem/question. The lever arm on the transmission requires 1 3/4" of travel at the slotted bar to move it from it full forward position to the full rearward position but the carb only has 1 1/8" of throw.

Do you start by pushing the arm all the way forward or just letting it go back to its "home". When I measured the distance needed to move the lever from its "home" to the full reward position it's 1 1/8" (same as the carb).

Here is the lever after it's pushed all the way forward.

Attached picture 7776361-lever.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 09:52 PM

Here it is at it's "home" (pushed rearward under tension then released).

Attached picture 7776363-lever2.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/14/13 09:54 PM

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?

Attached picture 7776365-lever3.JPG
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/15/13 07:50 PM

Quote:

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?



Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/15/13 08:04 PM

Quote:

Quote:

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?







It doesn't need to go all the way rearward , within an 1/8" would be ok , 1/16" would be better. The back of the slotted rod must be against the stud when the throttle is at rest with the lever on the trans at it's full forward position , idle position , and begin moving as soon as the throttle starts moving all the way to full throttle.
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/15/13 08:21 PM

Quote:

Quote:

Quote:

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?







It doesn't need to go all the way rearward , within an 1/8" would be ok , 1/16" would be better. The back of the slotted rod must be against the stud when the throttle is at rest with the lever on the trans at it's full forward position , idle position , and begin moving as soon as the throttle starts moving all the way to full throttle.



That's what I thought but I believe I have a lot more than 1/8" of travel left after I get the carb to full throttle. I didn't think to measure it but I'm guessing 1/4" or so...

I'll measure that tonight and post the results.
Posted By: JohnRR

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/15/13 11:57 PM

Quote:

Quote:

Quote:

Quote:

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?







It doesn't need to go all the way rearward , within an 1/8" would be ok , 1/16" would be better. The back of the slotted rod must be against the stud when the throttle is at rest with the lever on the trans at it's full forward position , idle position , and begin moving as soon as the throttle starts moving all the way to full throttle.



That's what I thought but I believe I have a lot more than 1/8" of travel left after I get the carb to full throttle. I didn't think to measure it but I'm guessing 1/4" or so...

I'll measure that tonight and post the results.



Can you adjust it any or is it at full adjustment ?
Posted By: VITC_GTX

Re: '71 One piece throttle valve linkage (Kickdown linkage) - 07/16/13 05:49 AM

Quote:

Quote:

Quote:

Quote:

Quote:

And all the way rearward.

Does the lever need to travel the entire distance (fully forward to full rearward)?







It doesn't need to go all the way rearward , within an 1/8" would be ok , 1/16" would be better. The back of the slotted rod must be against the stud when the throttle is at rest with the lever on the trans at it's full forward position , idle position , and begin moving as soon as the throttle starts moving all the way to full throttle.



That's what I thought but I believe I have a lot more than 1/8" of travel left after I get the carb to full throttle. I didn't think to measure it but I'm guessing 1/4" or so...

I'll measure that tonight and post the results.



Can you adjust it any or is it at full adjustment ?



It was at full adjustment and I still needed ~3/4" movement in the lever but I bent the one piece rod to "shorten" it which moved the pivot point at the throttle bracket. After I did that I was able to get the full throw that I need (push lever forward, back of slot touching carb stud, push carb stud to full throttle and lever at trans moves to full rearward position).

Thanks JohnRR and all others that helped.
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