1954 Accelerator Linkage on Firewall

[John L.]

Happy New Year!
I have a simple question regarding the bushings required for the accelerator linkage pivot assembly that is attached to the firewall. The rod from the accelerator pedal attaches to this bracket and the linkage rod from to the carbs run to this bracket as well.
Now it appears there is a rubber grommet where the carb linkage rod attaches and a nylon bushing that fits in where the pedal rod goes. Is this correct or am I missing something here. I have not been able to clearly find any information in the master parts catalog....
Appreciate any help here.
thanks,
John Lanning
P2280145.jpg

[Mike M.]

Re: 1954 Accelerator Linkage on Firewall

i recall such a rubber gromett when i had our 54 apart in the 80's. can't recall what i used to replace the original.might have been a 49-52 chevy pass car windshield wiper transmission rubber gromett. try the Filling station, good source for repo old chevy parts. they are online. good luck,mike

[Troy P.]

Re: 1954 Accelerator Linkage on Firewall

Try the nylon bushings that are used on most carb linkage. Not used on the 54 carbs though. Various sizes of rubber grommets are available at Lowe's, Home Depot, etc.

[Troy P.]

Re: 1954 Accelerator Linkage on Firewall

Looks like rubber at the top and nothing in the bottom hole.Hall 54 524.jpg

[John L.]

Re: 1954 Accelerator Linkage on Firewall

Appreciate the information and the detailed photo Troy...this gives me some idea on what to look for.
Happy New Year!
John Lanning

[Troy P.]

Re: 1954 Accelerator Linkage on Firewall

Photo is from an unrestored car. Cad plating is still in great shape.

[Peter R.]

Re: 1954 Accelerator Linkage on Firewall

John,

Attached is photo of the accelerator linkage bellcrank from #814. Nothing in bottom hole. I think whatever kind of bushing is in the upper hole of mine is broken, so I will be removing it shortly to get a better look and to see if I have a replacement bushing.

Pete

[Peter R.]

Re: 1954 Accelerator Linkage on Firewall

John,

I removed the worn bushings from the upper hole in my '54 accelerator bellcrank this afternoon (again, there are no bushings in the lower hole). Attached is a picture of what came out. The two pieces on the right are a black rubber grommet and a plastic sleeve with a flange on one side. The two pieces on the left are replacement pieces I had left over from my '57 FI. They are the exact same dimensions as the old parts. You can see that the new rubber bushing has flanges on both sides; the old one probably did, too, when it was new. The plastic sleeve is the same except for the color. Both the rubber bushing and plastic sleeve can be found in Zip's catalog as part #CZ-786, which they label as "55-67 Accelerator Rod Bushings & Sleeve." Neither Corvette Central nor Zip list these parts for '54, but they fit perfectly. The rubber bushing goes in the bellcrank hole first with its flanges sticking out on both sides, then the plastic bushing (I believe it goes in flange side first) fits inside the rubber bushing. I put some silicone grease on the accelerator rod for good measure. Then everything is held in place with a cotter pin.

Pete

[Troy P.]

Re: 1954 Accelerator Linkage on Firewall

Good report, Pete.

You can get the rubber hole bushing at Lowe's or Home Depot and the plastic bushing at most auto parts stores.

[John L.]

Re: 1954 Accelerator Linkage on Firewall

Appreciate all of the detailed recommendations.....working on all the little components over the winter since I cannot get out into the garage (no heat). So the accelerator linkage assembly is painted ... will get the appropriate bushing .... and then ziploc bag this assembly into bag number 72a. Now on to sorting out all fo the various stainless steel moulding clips
Thanks John

[Troy P.]

Re: 1954 Accelerator Linkage on Firewall

While you are at it note that the bellcrank on the firewall is cad plated. The bellcrank on the block is also cad plated but was painted. I believe in 53 it was installed before the engine was painted and it was thus blue. My experience with 54's indicates it was painted black like the rest of the linkage...although I have seen some linkage arms on a low mileage unrestored car (late 54) that was not painted.

[John H.]

Re: 1954 Accelerator Linkage on Firewall

I'm not a '54 guy, but that same configuration (bushing and sleeve) is typical of other throttle linkages used on later V-8's; the flange on the sleeve goes on the cotter pin side of the bushing - the flange is there to keep the cotter pin from tearing up the side of the rubber bushing.

[Peter R.]

Re: 1954 Accelerator Linkage on Firewall

I'm not a '54 guy, but that same configuration (bushing and sleeve) is typical of other throttle linkages used on later V-8's; the flange on the sleeve goes on the cotter pin side of the bushing - the flange is there to keep the cotter pin from tearing up the side of the rubber bushing.

Thanks, John. That makes sense to me. i put the new one on the same way the old one came off, but the old one might have been put on incorrectly in the past. I'll turn it around. Unfortunately, when it comes to details like this for the '54, there doesn't seem to be much official documentation on what's right.

Pete