Hi. Working on my 1955 F100.... wait, there is a reason I've posted here.... It has a 292/302 heads originally from a 1962 or 1963 truck (believe it was also an f100).

Pulled off the carb to rebuild it today, I believe it is a motorcraft 2100. FoMoCo tag still in place and says C3TF-K.

Have it pretty much stripped down and ready to dunk in some berryman's chem dip. There is one bit that I'm concerned about. It is a redish/brown part that is part of (under) the manual choke assembly. I can't seem to figure out how to get it out (or if it even supposed to come out), and I'm worried the chem dip will hurt it. Pic below. Any help much appreciated....

 

That is a picture of the front and the accelerator pump not the manual choke. Under the cap in a reddish rubber elastometer valve followed by a spring and then a diaphragm. I don't see that in the picture but every rebuild kit has that reddish valve which you do replace after pulling out the old.

What you have sitting in that picture is hard to tell what it is.

 

Yep, I got confused and/or stupid. What I was actually looking at is something called a "cavity filler" it is what it sounds like a hunk of a plastic-like substance that just fills the cavity. Once I realized what it was, I got a little more forceful with a pry pick and popped it out.

THanks!

 

C3TF-K is the 1963 original Auto-Lite (Ford) 2100 series 2V carb, there was no such thing as Motorcraft until 1973.

The 1963/74 Auto-Lite/Motorcraft 2100 2V carb kit is the same.