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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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Last edited by KULTULZ; 12-01-2023 at 09:03 AM. |
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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03-13-2024, 05:15 PM | #21 |
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Re: Throttle linkage and spring on engine side of firewall
I don't think so. The pictures of Daves linkage are nothing like the linkage on my two '54 239s. The kicker is, my brackets are not alike between the Skyliner and the Victoria. I came across a spring today while going through some old parts and it reminded me of the "farmer's fix" noted in post 1 that I have. I'm pretty sure that the spring from the linkage to the carb hold down bolt isn't correct but I really don't know. I can post a couple pictures tomorrow but I would like to revive this thread if the OP has found a solution.
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03-13-2024, 06:11 PM | #22 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
Where is Dave BTW?
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03-13-2024, 08:07 PM | #23 |
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Re: Throttle linkage and spring on engine side of firewall
The car is a standard trans. Most of what I see here has to do with auto trans. See # 12 response.
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03-13-2024, 08:24 PM | #24 |
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Re: Throttle linkage and spring on engine side of firewall
Both cars have automatics. I also have some linkage from a '54 SW that had an auto, but it is bent and useless. The picture from the parts catalog isn't big enough to make out and if magnified becomes a blur. I can't find an illustration in my catalog, perhaps someone can give me the page number. I'd be interested in seeing the standard trans linkage too. At least the throttle return spring placement would be the same.
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03-14-2024, 09:16 AM | #25 |
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Re: Throttle linkage and spring on engine side of firewall
- 1954 FORD ACCELERATOR LINKAGE(S) ILLUSTRATIONS - 1954 ACCEL LINKAGE (S/T & O/D) ILL SECTION 97 PG 332 FOR COMPARISON - 1954 ACCEL LINKAGE (F/M) ILL SECTION 97 PG 334 The ILL shown in POST #14 is incorrect. Disregard. |
03-14-2024, 08:39 PM | #26 |
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Re: Throttle linkage and spring on engine side of firewall
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03-15-2024, 02:55 AM | #27 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
Both of you cars is a 2V? Can you show a photo of the 2nd spring install?
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03-15-2024, 03:18 AM | #28 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
ALSO - POST # 11 Under CORRECTION Is Also Incorrect.
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03-15-2024, 08:16 AM | #29 |
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Re: Throttle linkage and spring on engine side of firewall
OK. I think I have what I need. The yellow tape is to show where the eyelets are on the bracket currently installed on the Skyliner and on the bracket I dug out of my parts stash that was taken off the Victoria. The Victoria one matches the bracket shown in the catalog. I wonder what the odd one came from. The spring was also in the parts stash and I assume it is the correct piece. All I have to do is remove the linkage from the engine, swap the brackets and reinstall, then install the spring. EZ-PZ.
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03-15-2024, 10:08 AM | #30 |
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Re: Throttle linkage and spring on engine side of firewall
The PN for the correct spring is B4A 9737-C. This may help you find a NOS or repro.
When you feel you have it assembled correctly, please show a new photo. |
03-15-2024, 05:12 PM | #31 |
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Re: Throttle linkage and spring on engine side of firewall
That looks a heck of a lot like a throttle spring you can get at Jegs. Think it comes as a kit, one goes through the other, and you would use the one that looks like this.
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03-17-2024, 12:05 PM | #32 |
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Re: Throttle linkage and spring on engine side of firewall
I was kidding about EZ-PZ. Some day my back and knees will forgive me. I swapped the brackets, took another look at page 334 and here is the spring as it hangs from the bolt. You can see the machined groove to the left of the spring. Hooked up it looks sketchy to me with all that force applied to the end of the bolt but apparently this is the correct installation.
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03-17-2024, 12:11 PM | #33 | |
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Re: Throttle linkage and spring on engine side of firewall
Quote:
How does the throttle feel? It looks good to me.
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03-17-2024, 12:54 PM | #34 |
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Re: Throttle linkage and spring on engine side of firewall
I'm too short to bend over the fender. To reach the bolts I had to climb in on top of the engine, and yes, it took a couple trips to get the right tools.
Throttle feels good but I can't start the engine until I get some other work finished.
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03-22-2024, 04:39 PM | #35 |
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Re: Throttle linkage and spring on engine side of firewall
My 57 has an automatic. Does anyone know the theory of operation of that linkage? I mean that little pair of tirangle plates and the little spring attached to it? The manual transmission cars do not have that little gizzmo on them? I mean why could a guy not extend the plate/shaft on the throttle, and pick up the opposite side and rig a cable down tot he arm on the trans and acheive the same thing?
My research, including factory manuals doesn't even broach the topic of how that little gizzmo works. |
03-23-2024, 04:15 PM | #36 |
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Re: Throttle linkage and spring on engine side of firewall
You might start a new thread. I think this one has petered out.
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03-23-2024, 06:51 PM | #37 |
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Re: Throttle linkage and spring on engine side of firewall
hmmm, maybe
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03-24-2024, 02:17 AM | #38 |
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Re: Throttle linkage and spring on engine side of firewall
That design is to ensure the TV ROD actuates correctly. You having trouble with yours?
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