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11-28-2023, 12:31 PM | #1 |
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Throttle linkage and spring on engine side of firewall
I have a 54 customline V8 239 Y-block. The previous owner did a farmers fix (no offense to farmers meant) on the throttle return spring on the linkage near the engine side of the firewall. I can't find any picture of this on-line showing how and where this spring should attach. Can someone refer me to a picture or post something here that would help me out? Thanks.
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11-28-2023, 02:42 PM | #2 |
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Re: Throttle linkage and spring on engine side of firewall
see it back by the firewall
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11-28-2023, 03:06 PM | #3 |
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Re: Throttle linkage and spring on engine side of firewall
Go to website jerrysclassiccars click on catalog. scrolldown to 100, and 101 on the left side. With that, and the photo you shoulkd be a ble to figure it out. FYI, the photo shows that spring goes downward. I can't recall, but I think the bottom end of that may hook into a lit in the cold along a seam.
Jerry's can sell you the springs. My guess is a spring broke, or got lost, and someone just made do with something from an old piece of equipment, or the hardware store. Tip; don't change the length of that TV rod (the one that goes down to the transmission. It works like a throttle position sensor on a modern car. |
11-28-2023, 03:07 PM | #4 |
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Re: Throttle linkage and spring on engine side of firewall
mine
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11-28-2023, 06:02 PM | #5 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
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11-28-2023, 06:20 PM | #6 |
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Re: Throttle linkage and spring on engine side of firewall
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11-28-2023, 07:02 PM | #7 |
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Re: Throttle linkage and spring on engine side of firewall
This is on a '55, 272 V8, but the setup is the same on a '54 239. Mine has Ford-o-Matic. The angle at which this photo is taken is not very good because the passing gear link is partly in the way, but you can see the top of the spring attached to the throttle-link screw. The bottom of that spring goes thru a hole in the bracket that is bolted to the top of the engine block. That bracket also holds one end of the throttle bellcrank shaft. This is the factory setup.
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11-28-2023, 07:40 PM | #8 | |
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Re: Throttle linkage and spring on engine side of firewall
Assume a Fordomatic ??
Quote:
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11-29-2023, 10:20 AM | #9 |
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Re: Throttle linkage and spring on engine side of firewall
Thanks Dave. The spring that came with the car was simply wrapped over that throttle link screw and that didn't look right to me....too much wear on that screw. I found that hole in the bottom bracket you mentioned...Thanks. Where is the other spring located? Down under?
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11-29-2023, 02:33 PM | #10 |
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Re: Throttle linkage and spring on engine side of firewall
Don't you need to get the special springs so that the tensions are correct for that W-O-T gizmo to work right?
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11-29-2023, 06:52 PM | #11 |
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Re: Throttle linkage and spring on engine side of firewall
The 1949/59 FORD PASS MPC ILL shows the 1954 AT using one spring and the 1955 AT using two springs.
CORRECTION - Both 1954 AT and 1955 AT used two springs. Only one spring was used on either the 1954/1955 ST throttle linkages. Was the MPC ILL I posted large enough to view the details?
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11-30-2023, 09:34 AM | #12 |
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Re: Throttle linkage and spring on engine side of firewall
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11-30-2023, 09:37 AM | #13 |
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Re: Throttle linkage and spring on engine side of firewall
If the "W.O.T." thing you mention is the kick-down switch.....then no, with a manual tranny it will work as long as you can mash the gas pedal to the floor. My switch works fine.
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11-30-2023, 09:49 AM | #14 |
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Re: Throttle linkage and spring on engine side of firewall
- WIDE OPEN THROTTLE - Referring to the TV LINKAGE that controls the operation of the AT. Below is an ILL of the throttle linkage - 1954 FOR 239CI S/T - See if it shows large enough ...
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11-30-2023, 05:14 PM | #15 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
The only other spring I can think of is the passing gear swivel return spring, but it has nothing to do with engine idle speed. The only thing that spring does is to allow the driver to stomp the gas pedal to the floor (whereby the gas pedal travel far exceeds the passing gear link) at the transmission. This spring allows the gas pedal to be fully depressed, which bottoms out the passing gear link. This spring takes up that slack. This spring MUST be employed, or the passing gear mechanism will not be effective. |
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11-30-2023, 05:19 PM | #16 |
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Re: Throttle linkage and spring on engine side of firewall
In this picture you can see both springs
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11-30-2023, 05:52 PM | #17 |
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Re: Throttle linkage and spring on engine side of firewall
So the one that is more horizontal is for W-O-T actuation (automatics)?
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11-30-2023, 05:55 PM | #18 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
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12-01-2023, 09:15 AM | #19 |
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Re: Throttle linkage and spring on engine side of firewall
The photo is showing 1955/56 FOM throttle linkage - The 2nd spring (horizontal front) is used to increase tension to help the TV linkage to return properly. The springs are different for the 1954 and 1955. |
12-11-2023, 12:45 PM | #20 |
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Re: Throttle linkage and spring on engine side of firewall
... chirp ... chirp ... chirp ... Was there any resolution regarding this? 1954 FORD 239 S/T THROTTLE RETURN SPRING - PN - B4A 9737-C 2.92" L - .812" OD - 17 COILS
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