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07-26-2024, 09:10 AM | #1 |
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Join Date: May 2022
Location: Longwood 59 chevy
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Gas pedal assembly
I'm starting a new thread on my gas pedal and linkage problems. Everything works good until I add the rod that connects the pedal to bellcrank. I'm getting binding and the heal of the pedal moves forward as you press down. The geometry is off. This is the rod that came with it . It was bent into almost an s shape to get it to work and the peday had broke of the floorboard . Ive straighten it some and threaded the end to adjust for the extra travel straightening gives it. What should the rod look like? Should it be straight so the bellcrank get pushed back horizontally. I'm thinking I'll heat it up and take out the bends until it looks like the manual then Ill need to thread more of it since it get longer as it get straighter. Any ideas? At this point I'm almost ready to buy a cable driven pedal and be done with it. Last question is any recommendations for a cable pedal assembly cheap and looks like its supposed to be on an old truck? 72-87 assembly maybe ? Will this bolt up no issues? I really want to use the original but everything has be modified over the years to the point its just a headache. Thanks to those who got me this far.
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07-26-2024, 01:04 PM | #2 |
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Re: Gas pedal assembly
thats a tough one to figure out. are your linkage parts all from your engine or is it possibly a mix and match setup from different vehicles? curious because if the belcrank is stock, the rod to the carb is stock and the rod to the pedal is stock then it should all fall into place if assembled correctly. without the rod to the pedal, does the system operate correctly by hand, to give idle and full throttle? is the belcrank assembled the right way around? can you post a pic of it?
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07-26-2024, 01:05 PM | #3 |
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Re: Gas pedal assembly
has the rod been added to possibly? possibly someone before you welded an extension to the rod and did a very good job so it looks like it was made that way?
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07-26-2024, 03:27 PM | #4 |
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Re: Gas pedal assembly
I had to replace the rod from the bellcrank to carb because the one it came with was too short. If you look at my other post you can see how bad this one was bent. When i operated it the rod would hit the manifold . . Everything works great until I hook up the pedal then it hits on the hole thru the firewall because its too much angle when the pedal is bolted down. I dont think its been add to. Ive threaded the last 3 inches trying to make it adjustable and havent run into any welds. I'm going to try bending is so it moves more in a straight line
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07-26-2024, 03:32 PM | #5 |
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Re: Gas pedal assembly
Heres a photo of how the end was bent at first
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07-26-2024, 07:50 PM | #6 |
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Re: Gas pedal assembly
ebay, Ecklers and Classic parts all show complete linkage assemblies available. You might look at the pictures for ideas or think about buying a complete new assembly
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49 chevy 3100 3 window. 327 / m21 4 spd, 12 bolt w/ 3:55's Bought in 1973 for $235.00. Had it longer than my wife & Kids!! |
07-27-2024, 05:46 AM | #7 | |
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Re: Gas pedal assembly
Quote:
Last edited by popeyestruck; 07-27-2024 at 05:54 AM. |
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07-27-2024, 09:28 AM | #8 |
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Re: Gas pedal assembly
Here'e a p/n for Eckler's. Is it possible you have the wrong linkage?
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49 chevy 3100 3 window. 327 / m21 4 spd, 12 bolt w/ 3:55's Bought in 1973 for $235.00. Had it longer than my wife & Kids!! |
07-27-2024, 10:50 AM | #9 |
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Re: Gas pedal assembly
Yeah its very possible. Someone put an automatic choke BC carb on it befere I got it . It looks like they cobbled parts together to make it run. I played with it this morning and got the geometry closer but it still hangs up a bit. You forgot the part number???
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07-27-2024, 12:11 PM | #10 |
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Re: Gas pedal assembly
Item EK-61-156461-1
sorry about that.
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49 chevy 3100 3 window. 327 / m21 4 spd, 12 bolt w/ 3:55's Bought in 1973 for $235.00. Had it longer than my wife & Kids!! |
07-27-2024, 04:21 PM | #11 |
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Re: Gas pedal assembly
That might work but looks nothing like what i have. I think thats for a V8 . It looks like it pulls on the bellcrank. Mine pushes
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07-28-2024, 12:49 AM | #12 |
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Re: Gas pedal assembly
it seems like the rod needs to make a sweeping arc to allow the rod to pass through the floor hole without binding, the needs to make a bend to connect to the belcrank.it would be interesting to see if the pedal connection point is more or less inline with the floor hole at the idle position and then how much that varies at full throttle position. is the rod inserted through the hole as per the pics in the manual, so the arc is in the floor hole through it's entire sweep or does the arc not fit the floor hole correctly? correct height/lenght of pedal to match the floor hole?
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07-28-2024, 04:38 AM | #13 |
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Re: Gas pedal assembly
The rod is about twice as thick inside the cab then a quick taper . It was catching on the taper so I had to extend it further into the engine bay To get passed the taper . When I did that it pushed the bell rank connection past the bell crank so I had to thread about 4 inches on the bell crank end . Since I had to get that 90 degree bend out tapping was really slow getting past the deformed metal. I'm real close to fitting it now . I think I'll get it today. All the parts were wrong . The rod from the carb to the bellcrank was so short it would only hook up at the 9 0 clock position that was the reason for the 90 degree bend. I got a longer rod off an automatic trans which was too long and had to thread that to make it fit. It was hooked up this way when I tore it down but I cant figure out how it worked other than it was an accident waiting to happen. I know why they did it because its impossible to find the correct rods for a 59 6cylinder with and auto choke. Every step you change one thing and it throws the geometry off and you have to fix something else but think I finally will get it today. I'll keep you posted
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07-28-2024, 09:06 AM | #14 |
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Re: Gas pedal assembly
I got it. Just a lot of bending to get it right. On to the next task. Tucking the rear bumper
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07-28-2024, 12:15 PM | #15 |
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Re: Gas pedal assembly
awesome. do you feel like an engineer now, inventing stuff?
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07-28-2024, 02:16 PM | #16 |
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Re: Gas pedal assembly
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09-08-2024, 10:03 AM | #17 |
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Re: Gas pedal assembly
Back to square 1 on this gas pedal linkage. Put the seat and interior in and was going to go get a battery and start it. I dont have the front fenders and hood on yet. Sat in the front seat to see if everything fit and the pedal still sticks at full throttle!!! . The linkage needs a downward bend going thru the firewall and another bend where it connects to the bellcrank . The bell crank rotates in a counter clockwise direction and it need to be perfect. Stock wont work because of autochoke so I had to make something up.
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09-08-2024, 10:40 AM | #18 |
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Re: Gas pedal assembly
so, did you get it to work then? you say you had to make something up, what's it look like now? no binding anymore?
man, this throttle linkage thing is gonna drive you crazy. |
09-08-2024, 12:36 PM | #19 |
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Re: Gas pedal assembly
It works as long as I dont floor it. The bellcrank gets jammed. I need more bend in that area so it can fully rotate. I'll fix it this week. I'm almost to the point of buying a new carb and going with the original linkage. Yeah its driving me F#*kin crazy. I think I might try shortening the travel a little on the vertical linkage from the carb to the bellcrank that way the carb will be at full throttle before the bell crank turns over past 9 0 clock
Last edited by popeyestruck; 09-08-2024 at 02:57 PM. |
09-08-2024, 02:57 PM | #20 |
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Re: Gas pedal assembly
Does the Beltran get jammed due to the angles, like a longer or shorter rod on one of the linkage points may fix the issue? Gotta think that if the pedal to Beltran is left stock then possibly the rod that goes to the carb could be reconfigured to work properly. If you could post some pics of the whole thing and then another with it in the jammed position maybe we can help figure it out.
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09-08-2024, 03:37 PM | #21 |
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Re: Gas pedal assembly
Yes because of the angles. I take a photo tomorrow when i work on it. I'll take one in the jammed position too
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09-09-2024, 08:09 AM | #22 |
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Re: Gas pedal assembly
Ok I took the inner fender off so I could see better. Jammed the pedal until it stuck and the return spring was getting trapped between the linkage and bellcrank. Repositioned the spring and works great. Sometimes you just have to get away from it for a day. I was so use to it being one thing I didnt expect anything else
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09-09-2024, 09:46 AM | #23 |
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Re: Gas pedal assembly
thats great you got it figured out without too much headache. now on to the next hurdle.
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