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  • 1965 - 1973 Classic Mustangs -General/Talk-

New Carburetor and now stock throttle cable too long

  • Thread starter Thread starter Rittdog
  • Start date Start date Aug 22, 2023
R

Rittdog

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Aug 22, 2023
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Hillsboro, OR, United States
Aug 22, 2023
#1
  • Aug 22, 2023
  • #1
Replaced carburetor and now the throttle cable is too long. Looked at potentially adjusting length at the peddle, but thought to ask. Helping my son with this project. Thank you for you help.
1969 302 V8 stock Grande.
 

70mstang

Member
Jan 30, 2017
41
7
18
Aug 22, 2023
#2
  • Aug 22, 2023
  • #2
photos of the cable and the carburetor throttle linkage would be helpful... maybe one or two of our mechanical engineering people can make some recommendations?
 

RPM Mach One

5 Year Member
Mar 26, 2017
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Bakersfield, USA
Aug 26, 2023
#3
  • Aug 26, 2023
  • #3
If you have the stock throttle cable it doesn't matter if it's too long. If you're using something other than stock we can't read your mind, tell us and post some pics.
 

manicmechanic007

5 Year Member
Sep 26, 2017
2,536
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Roy, Utah
Aug 27, 2023
#4
  • Aug 27, 2023
  • #4
The cable is broken at the firewall?
 
R

Rittdog

New Member
Aug 22, 2023
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Hillsboro, OR, United States
Sep 2, 2023
#5
  • Sep 2, 2023
  • #5
70mstang said:
photos of the cable and the carburetor throttle linkage would be helpful... maybe one or two of our mechanical engineering people can make some recommendations?
Click to expand...
thank yo
u 70mStang. Here are a couple images. One is of the throttle cable shown too long. This happened after we changed the carburetor. The other problem is that the car accelerates really high and goes about 35 mph when you release the brake. The kickback bar appears to not return as shown in the picture with the index finder is shown. We adjusted the carburetor screws and the idoling got better but it continues to fly after putting it into drive and releasing the brake. appreciate your help.
 

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Rittdog

New Member
Aug 22, 2023
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Hillsboro, OR, United States
Sep 2, 2023
#6
  • Sep 2, 2023
  • #6
manicmechanic007 said:
The cable is broken at the firewall?
Click to expand...
Manicmechanic007, no the cable is intact. see my explanation on the previous post. any help is appreciated.
 

85GTStangGuy

5 Year Member
May 19, 2021
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Jax, Florida
Sep 2, 2023
#7
  • Sep 2, 2023
  • #7
Is that correct with the throttle cable bracket attached at the carb base, or is that bracket supposed to be mounted to the intake manifold?

It seems if something is holding the throttle open. Does it still have the high idle with the kickdown linkage removed? Is the choke and it's linkage adjusted correctly?

Have you compared the throttle linkages between the 2 carbs?
 

manicmechanic007

5 Year Member
Sep 26, 2017
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Roy, Utah
Sep 2, 2023
#8
  • Sep 2, 2023
  • #8
I think you need to move that bracket with the cable holder to one of the bolt holes at the rear of the carb on the intake
The bracket that holds the cable on my 69 places the cable holder further back
 
R

Rittdog

New Member
Aug 22, 2023
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Hillsboro, OR, United States
Sep 5, 2023
#9
  • Sep 5, 2023
  • #9
manicmechanic007 said:
I think you need to move that bracket with the cable holder to one of the bolt holes at the rear of the carb on the intake
The bracket that holds the cable on my 69 places the cable holder further back
Click to expand...
do you have any images you could share? i understand but there isn't anywhere to move the bracket to? thank you
 

85GTStangGuy

5 Year Member
May 19, 2021
1,002
625
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Jax, Florida
Sep 5, 2023
#10
  • Sep 5, 2023
  • #10
Rittdog said:
i understand but there isn't anywhere to move the bracket to?
Click to expand...
Aren't those tapped holes I see further rearward on the intake??


Has the upper-most edge, only in reference to your pics in post #5, of the cable bracket been cut? It looks like that particular edge has been worked on. I'm wondering if someone modified that bracket (cut a portion off maybe?), and that's part of the issue. Like @manicmechanic007 said, it would make more sense if that bracket was further away from the carb. I've never seen that bracket mounted using a carb stud.... but I don't have any familiarity with Gen 1 Mustangs.
 

70mstang

Member
Jan 30, 2017
41
7
18
Sep 25, 2023
#11
  • Sep 25, 2023
  • #11
85GTStangGuy said:
Aren't those tapped holes I see further rearward on the intake??


Has the upper-most edge, only in reference to your pics in post #5, of the cable bracket been cut? It looks like that particular edge has been worked on. I'm wondering if someone modified that bracket (cut a portion off maybe?), and that's part of the issue. Like @manicmechanic007 said, it would make more sense if that bracket was further away from the carb. I've never seen that bracket mounted using a carb stud.... but I don't have any familiarity with Gen 1 Mustangs.
Click to expand...
So, on my straight six car there's another sortof throttle linkage acting as an intermediary between the cable and the carb, *and* they use the same connector on both ends! so I think that's what you're missing in this equation...
 

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