1954 Throttle Linkage

[John L.]

Greetings!
I need a little advice on the correct throttle linkage attachment for my 1954 corvette. The attached photo shows the pieces of the assembly with the "bellcrank" or pivot plate in the center, the rod from the pivot to the transmission, the rod from the pivot to the carbs, and the adjustible rod from the pivot to the accellerator pedal bracket.

My question is what is the correct connector for the accellerator rod at the pivot. There is a connector at the end of the accellerator rod that provides adjustment that fits into the hole at the pivot. In the photo I have two types of these connectors but not sure which is correct.

The first is the painted one that came with the whole set up that I have show. This connector block does not appear to not have any hole in the pin that fits into the pivot - a hole where you typically would slip a cotter key in with a washer that would secure the rod assembly into the pivot. The connector itself is free to slide up and down the accellerator rod for correct adjustment and is held in place by 2 jamb nuts.

The second one is the unpainted connector which has a hole for a cotter key in the pin that is inserted into the pivot bracket. The connector itself is threaded so it can provide adjustment turning the rod into it and did not require the jamb nuts as the first one.


Any help on figuring out which is correct. As mentioned the painted one came with the assembly but I really cannot see how it secured to the pivot bracket, the second is from a 54 Chevy trunk linkage which is typically how I am accustomed to seeing these pins secured in a bracket with a washer and cotter key.
Hmmm and suggestions.
Thanks!!
John lanning




throttle link close.jpgthrottle linkage.jpg

[Chris S.]

Re: 1954 Throttle Linkage

in your photo
From the engine bell crank..... there are three rods.
the rod to the far right - goes up to the center carb
the rod on the left bottom - is not correct - you need the rod that goes from the bell crank to another "bell crank" on the firewall" then there is a rod to connect the "firewall bellcrank" to the accel pedal and has a small ball on the end - here is what the rod looks like..... the swivel is wrong.

http://www.ebay.com/itm/Corvette-1952-1953-1954-Carb-Rod-acellerator-pedal-/150368572515?hash=item2302aa5463&item=150368572515&pt=Vintage_Car_Truck_Parts_Accessories&vxp=mtr

the third rod goes from the engine bell crank to the transmission

The block goes on the back of the engine bell crank and attaches to the rod from the firewall.

http://chevy.oldcarmanualproject.com/1929_57chevyparts/57cmpc0303.htm

[John L.]

Re: 1954 Throttle Linkage

Thanks Chris - I knew I could count on you and others for some help....
Now I do have what I will call the firewall accellerator bell crank assembly and the rod from the pedal to that assembly. As you mentioned there seems to be an odd connector at the end of the rod shown in your link to the part that was offered on ebay. So the rod I have looks like it - minus the connector.

To the issue I have it seems the rod to the accellerator connector at the firewall and little connector blocks I have shown in my photo are not correct and I need to seek out the correct one. You know, I questioned this particular rod from the beginning since I have all of the linkage from a truck engine (that is where the unpainted connection block came from) so when I was comparing I noted that this rod was the same as found on the truck set up.


Will check with Mary Jo or Carol to see if either have what I am looking for.

Have the engine and transmission set in the frame, now hooking everything up and hope to fire up the engine for the first time in the next couple month!!

Thanks, John Lanning

[Chris S.]

Re: 1954 Throttle Linkage

the little connector block in your photo on the left is correct
it screws onto a rod that goes to the firewall

you are missing that rod - C Central sells them

I do make the correct "block" if you need one - they have a very very fine thread

[John L.]

Re: 1954 Throttle Linkage

Great infomation and follow up should I need the block.......Thanks so much.
8-8 progress.jpg

[Cathy S.]

Re: 1954 Throttle Linkage

Oh thats beautiful! Something about a bare 54