Accelerator pedal mystery..

[sjaakslinger]

The gas pedal on my recently acquired '47 doesn't lock into the 2 lower studs. I found a replacement in the trunk of the car, but that is a different one as the one installed and doesn't fit. Probably the reason it was in the trunk... 🙄 When checking the partnr. from the 47 parts book, the one in the trunk should be the correct one. Also when looking with the known vendors.

 

As can seen in the pictures the distances from the upper hole to the lower 2 are different.

 

Someone an idea here? Or recognises the one on my car? Thx.

 

Dennis

[Ivan_B]

How doe the hole in the floor for the pedal rod look, is it still the OEM shape? Assuming that the linkage\levers has not been changed\modified, the original pedal is expected to fit correctly.

Maybe someone just replaced the floorboard?

Edited January 7 by Ivan_B

[joecoozie]

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Edited January 8 by joecoozie

[Los_Control]

6 hours ago, sjaakslinger said:

gas pedal on my recently acquired '47 doesn't lock into the 2 lower studs.

47 what? .... I just looked at 47 Dodge replacement pedals and they are a different style. ..... would help to know what you are working on.

 

The trucks use that same style of a ball on the floor that the pedal pushes onto .... the balls are replaceable, the rubber on the pedal gets hard and will no longer attach to the balls and so the pedals are replaceable.  .... Which part of yours is worn out?

New pedal is $35 ... studs $20 .... shipping $10K

 

I welded a door hinge to my pedal and bolted it to the floor.

 

[sjaakslinger]

The car is a 47 Plymouth 3 door Coupe. I'll have another look at the floor board for any modifications. 

[Sam Buchanan]

21 hours ago, sjaakslinger said:

The gas pedal on my recently acquired '47 doesn't lock into the 2 lower studs. I found a replacement in the trunk of the car, but that is a different one as the one installed and doesn't fit. Probably the reason it was in the trunk... 🙄 When checking the partnr. from the 47 parts book, the one in the trunk should be the correct one. Also when looking with the known vendors.

 

As can seen in the pictures the distances from the upper hole to the lower 2 are different.

 

Someone an idea here? Or recognises the one on my car? Thx.

 

Dennis

 

When you state the pedal doesn't "lock" onto the ball studs on the floor does that imply the pedal hole spacing is incorrect or the pedal just won't snap into place? These pedals can get hard with age and require a very firm effort to get them to snap over the balls. If the spacing of the holes in the pedal is correct, try using a strong impact (block of wood and hammer?) to seat the pedal onto the studs. In regard to the throttle linkage I attach a pair of locking pliers to the pushrod to prevent it from being depressed while I firmly snap the pedal into place on the linkage ball.

 

Enjoy your new ride! 

Edited January 8 by Sam Buchanan

[sjaakslinger]

Thanks. It's both. The 2 bottom holes are worn out. And they seem to be apart a bit too far. I already tried to widen them a bit. Guess I have to give it another go.

 

All seems a bit odd. Neither the original one (from the trunk) nor the one on the car really seem to fit optimally.

[Los_Control]

Looking online, a  replacement pedal fits years 42-48 for Plymouth. Just possible you have a pedal for different years.

 

Did you actually remove one of the pedals from the car?

[Young Ed]

Can you post a pic of your floor? That area is a common rust spot and it's possible you have something going on with the floor studs 

[sjaakslinger]

50 minutes ago, Los_Control said:

Looking online, a  replacement pedal fits years 42-48 for Plymouth. Just possible you have a pedal for different years.

 

Did you actually remove one of the pedals from the car?

I took off the one that was on the car (the right one in the picture above) cause I had to check the travel of the linkage because the kickdown didn't work. The carpet was too thick. I then noticed it didn't properly lock into the 2 studs.

5 minutes ago, Young Ed said:

Can you post a pic of your floor? That area is a common rust spot and it's possible you have something going on with the floor studs 

Yep. That's gonna be next week though when I work on the car again.

[Ivan_B]

The main problem here, I think, is that if he fixes the bottom to the studs, the top of the other (and presumably correct) pedal appears to be too far away

Edited January 8 by Ivan_B

[Dan Hiebert]

Just a thought here - The one on the left looks just like the one in our D24.  On the D24, the hinge part at the bottom is folded (closed) under the pedal, like curling your arm.  If attached the way you have it laid out in the photo the pedal would be too long and the shaft would not fit.  You have to detach the shaft from the top of the pedal to rotate the pedal towards the seat to get at the bolts attaching the hinge to the floor.  So, the way the one on the right is laid out would be how the  D24 version would be attached to the floor.  The one on the right looks like the hinge should be extended (open).  Either way would affect how the shaft lines up for that upper attachment.  It looks like if either one is attached the way you have them laid out, they wouldn't fit.  You wrote that the car has thick carpet, assuming that the pedal was attached on top of the carpet, the "shorter" version may have been used due to that thick carpet.       

[sjaakslinger]

On 1/9/2025 at 3:13 PM, Dan Hiebert said:

Just a thought here - The one on the left looks just like the one in our D24.  On the D24, the hinge part at the bottom is folded (closed) under the pedal, like curling your arm.  If attached the way you have it laid out in the photo the pedal would be too long and the shaft would not fit.  You have to detach the shaft from the top of the pedal to rotate the pedal towards the seat to get at the bolts attaching the hinge to the floor.  So, the way the one on the right is laid out would be how the  D24 version would be attached to the floor.  The one on the right looks like the hinge should be extended (open).  Either way would affect how the shaft lines up for that upper attachment.  It looks like if either one is attached the way you have them laid out, they wouldn't fit.  You wrote that the car has thick carpet, assuming that the pedal was attached on top of the carpet, the "shorter" version may have been used due to that thick carpet.       

I don't think I fully understand your post. You're talking about a hinge, but there is no hinge. The pedal 'hinges' on the 2 studs that go into the 2 holes on the lower part of the pedal.

 

The distance between these 2 holes and the upper hole for the throttle linkage are different on the 2 pedals.

[Ivan_B]

I just looked at my own 40 pedal - there is no hinge at the bottom. There is just a rubber block with two holes molded to the pedal body.

[Dan Hiebert]

On 1/10/2025 at 10:34 AM, sjaakslinger said:

I don't think I fully understand your post. You're talking about a hinge, but there is no hinge. The pedal 'hinges' on the 2 studs that go into the 2 holes on the lower part of the pedal.

 

The distance between these 2 holes and the upper hole for the throttle linkage are different on the 2 pedals.

 

On 1/10/2025 at 12:30 PM, Ivan_B said:

I just looked at my own 40 pedal - there is no hinge at the bottom. There is just a rubber block with two holes molded to the pedal body.

The joint between the pedal and the small plate that bolts to the floor is a hinge joint, ergo "hinge" in my vocabulary.  Depending on the pedal assembly, that plate could be a block of rubber molded with the pedal, or a metal plate attached with a rod, pins, bolts, etc. to the pedal.  Semantics whether or not "hinge" is the right word.  Two different pedal assemblies would most likely have different measurements between each other.  What I was trying to get at is that each pedal assembly could have two measurements, too, depending on which way that attachment plate is folded.  They still may not fit, just something to try.    

[Ivan_B]

No, no, you are alright, a hinge type assembly at the floor side makes sense. I just do not recall seeing one, on my car. I'll take another look at it, later.

[sjaakslinger]

I took a closer look at the pedal assembly. If I press in the correct pedal (that wasn't installed) in the 2 lower studs and force the throttle linkage upwards in order to connect it to the upper hole in the pedal, it's too tight a fit. The throttle linkage shaft will run against the edge of the floor hole it runs through. 

 

I had the car on a lift again and figured, maybe I can unbolt the 2 studs and place them a bit further downwards. Seems someone had the idea of welding the nut and stud bolt together and to the body.🙄 It also seems the someone replaced a part of the foot well floor board. Maybe that changed the whole geometry of the pedal setup.

 

Maybe I can enlarge the hole of the throttle linkage shaft a bit to get enough distance...