Throttle linkage adjustment
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Senior User
Joined: Apr 2005
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From: South Bend, IN
Throttle linkage adjustment
'76 highboy with manual transmission and 300-6 engine.
Just had body work done which included replacing the floor pans.
The gas pedal doesn't seem to have the same amount of travel that it did, and the truck doesn't seem to have as much power as it did, and I'm pretty sure that the new floor pans are interfering with the accelerator travel.
My Detroit Iron manual has a section for 'throttle linkage' and they tell you to 'check and adjust' it at WOT, but they don't tell you how. I've looked all over both ends of the cable and don't see any provision for adjusting it -- just attaching it.
How do you adjust it for accelerator position?
Just had body work done which included replacing the floor pans.
The gas pedal doesn't seem to have the same amount of travel that it did, and the truck doesn't seem to have as much power as it did, and I'm pretty sure that the new floor pans are interfering with the accelerator travel.
My Detroit Iron manual has a section for 'throttle linkage' and they tell you to 'check and adjust' it at WOT, but they don't tell you how. I've looked all over both ends of the cable and don't see any provision for adjusting it -- just attaching it.
How do you adjust it for accelerator position?
Last edited by n9lhm; Nov 2, 2007 at 08:29 AM.
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Joined: Sep 2003
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My 77 has a solid metal rod linkage for the throttle, to adjust it you just unloosen a nut and thread the rod in or out. I never saw an older ford truck with a cable for the carb, but most throttle cables arent adjustable. A rare few have some kind of adjuster built in them, but not many.
If you cant find any adjuster for the cable, one trick i've always done is just take the gas pedal out, and bend the rod that the cable connects to forwards or backwards depending on whether you want to increase travel or decrease it, then put the pedal back in and check where it's at. Basically just have someone step on the gas all the way, and make sure the primariy butterfly in the carb is opening all the way, and that it closes all the way when you let off.
If you cant find any adjuster for the cable, one trick i've always done is just take the gas pedal out, and bend the rod that the cable connects to forwards or backwards depending on whether you want to increase travel or decrease it, then put the pedal back in and check where it's at. Basically just have someone step on the gas all the way, and make sure the primariy butterfly in the carb is opening all the way, and that it closes all the way when you let off.
Thread Starter
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Senior User
Joined: Apr 2005
Posts: 446
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From: South Bend, IN
Well I took the cable loose at the carb, it has a ball-and-socket connection with a spring clip holding it on, and it comes right off. Tried turning the cable end 10 or so turns each direction, but it didn't seem to make any difference in the length that I could tell. Any other ideas? There's got to be some easy way to adjust this that I'm overlooking.
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