installation of the throttle valve cable on Factory and
after-market carburetors or fuel injections. This information
applies to all 700R4, 4L60 and 200-4R transmissions. Throttle
valve cable adjustment instructions, numbers 4, 5 and 6.
button that the cable hooks to at the carburetor or throttle
body must have approximately 1 and 3/32-inch radius from the
center of the throttle shaft to the center of the button the
cable hooks to.
at the throttle shaft lever from the left side at idle position,
approximately 33% of the throttle lever total travel must be to
the rear of the throttle shaft centerline. And at wide-open
throttle, approximately 67% to the front of the throttle shaft
centerline. This will be about ½-inch to the rear and 1 inch to
the front of the throttle shaft centerline.
throttle valve cable must be hooked up in this manner so the
pressure will rise faster off idle and slow down at heavy
throttle. If the pressure cable is pulled in a more even manner
the pressure will be too low at light throttle. Failure to
hook-up the throttle cable in this way will burn the three-four
clutch pack up fast.
throttle valve cable controls transmission pressure. Adjusting
this cable is the most important step when installing a 700R4,
4L60 or 200-4R transmission.
final step is to adjust the throttle valve cable. The cable must
be adjusted so it is pulled fully out at wide-open throttle. To
make sure disconnect the cable, hold the throttle wide open with
your left hand, pull the cable fully out with your right hand
and see if the cable end lines up with the button on the
throttle lever. The
cable should also be pulled out 3/8 to 1/2 of an inch at idle.
not attempt to adjust the shift timing with the throttle valve
cable. The shift timing is controlled by the governor springs
and weights. For higher shift points at wide-open throttle
install lighter springs. For lower shift points at wide-open
throttle install stronger springs. After the cable is adjusted
the approximate shift points should be 15 to 18, 25 to 30 and 40
to 50 MPH at very light throttle depending on tire size and axle
ratio. Light throttle shift points are measured in MPH and full
throttle shift points are measured at what RPM. The full
throttle 1-2 shift will usually be at a higher RPM than the 2-3
shift. The governor will work with only 1 spring or 2 springs.
You can remove one spring to raise the full throttle shift
can get a cable button off of a junk GM vehicle and weld it to
your throttle valve lever. We sell a cable correction kit for
Holley and Edelbrock carburetors.
on a newly rebuilt 700R4 or 200-4R transmission, it may not make
the 3-4 shift when first installed. A stuck valve, trash in the
fluid or an air pocket, usually causes this. Raise the rear
wheels off the ground, place the transmission in overdrive
position. Run the speedometer as high as 100 miles per hour, pop
the throttle on and off and see if you can force a 3-4 shift.
Once it makes the first 3-4 shift, work the shift lever back and
forth between drive and overdrive until the 3-4 shift works
you have a Holley or Edelbrock carburetor, you must install an
adapter on the carburetor linkage for the transmission to work
correctly. #29 at www.transmissioncenter.net/highperf700r4.htm
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