Expert: Brad Sears - 6/11/2010

Question
QUESTION: I am restoring a 1955 Buick Sedan 322cu in 4 barrel.  I am wondering how the accelerator pedal attaches to the carb. linkage in conjunction with the dyno-flow kick down shaft. Both rods bolt to wear?

ANSWER: Check the attached diagram. If this does not help let me know and I will see if I can find more information.

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QUESTION: Thank you for the picture.  It did help somewhat.  I am still not fully comprehending how it goes together.  Could you please give me further instruction.  It looks like the kick down shaft bolts to the back of the driver's side head but how does it co-inside with the accelerator pedal shaft with a twisting motion  and function together?

Answer
I can't find a better diagram for you linkage. But indeed the Z bar link does bolt vertically to the back of the drivers side cylinder head. The rod from the gas pedal comes from the top of the pedal and attaches to the bottom of the link. This turns the link and in turn pull the throttle rod that is connected to the carburetor. The transmission rod connects to the top linkage not the bottom. What you call the kick down shaft is the Z bar linkage that converts the push of the gas pedal to a rotary motion of the vertical shaft.