Carb Throttle Linkage Dilemma
#1
Carb Throttle Linkage Dilemma
I'm running a 1411 Edelbrock carb on a Edelbrock 2166 intake atop a Ford 460. The 460 is mounted in my 1982 Ford E350 based Class C Motorhome. I'm using the recommended 1483 and 1495 Edelbrock linkage adapters and everything drives a C6 automatic with GearVendors overdrive. The engine was professionally remanufactured about 8,000 miles ago and has a RV torque cam. The camshaft timing has been reset to 0 degrees and it runs rather well below 3.000 rpm. Above that it seems to run out of breath. While checking details, I found that with the accelerator pedal fully depressed, I was not fully opening the carb throttle and it appeared that the mechanical secondaries were not opening! I moved the throttle cable connection at the 1483 linkage to the second available hole since the measured lever arm to the throttle shaft was shorter than the first of two holes I used and there was a small improvement. Now the secondaries are starting to open! There appears to be no way to modify the length of the cable stroke on the E-series van. Is this a common problem? I'm about to drill more holes in the 1483 adapter. Are there any suggestions for other options or for the proper lever arm distance to use for this application with the 1483 adapter? Any help would be greatly appreciated.
#2
#3
Hey Frank!
FTE has a lot of sub-forums, one or two of them dealing with your engine & transmission as installed in that chassis. I'm fairly certain someone has overcome these same cable issues you're having---I'd post in the appropriate sub-forum and see what advice or fixes are offered.
HTH
FTE has a lot of sub-forums, one or two of them dealing with your engine & transmission as installed in that chassis. I'm fairly certain someone has overcome these same cable issues you're having---I'd post in the appropriate sub-forum and see what advice or fixes are offered.
HTH
#4
#5
A few comments by way of an update. There was good response in the sub-forum suggesting that the throttle was being stopped from full travel by a mis-adjusted kick down rod. I finally got back to the problem in past few days and replaced the Edelbrock 1411 that I had been using with an Edelbrock 1406 (same Edelbrock 1483 kick down adapter used). During that install, I discovered that I had a seriously mis-adjusted kick down rod, which indeed stopped throttle travel at about 3/4 of the available design. With the 1406 install, I first locked the throttle in the full open position, then adjusted the kick down rod, added two 1/4" washers to reduce the sideways motion and then adjusted the kick down screw for a 0.060" gap for the throttle against the kick down level at full stop. I then reconnected the accelerator cable and verified that full pedal stroke gave full carburetor throttle opening. During this whole sequence, I also found the cruise control actuator to have a great deal of slack. This was also adjusted to specifications.
#6
E9UZ-9725-B (replaced D5UZ-9725-A) .. Accelerator Assy. / Obsolete ~ 2 available NOS
1975/91 E100/350 all I-6 & V8 (gas).
------------------------------------------
E1TZ-9A758-C .. Accelerator Cable - 30 5/16" long / Obsolete ~ 2 available NOS
1981/82 E100/350 300 I-6 / 1981/87 all V8's with carburetor.
1975/91 E100/350 all I-6 & V8 (gas).
------------------------------------------
E1TZ-9A758-C .. Accelerator Cable - 30 5/16" long / Obsolete ~ 2 available NOS
1981/82 E100/350 300 I-6 / 1981/87 all V8's with carburetor.
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