I've searched everywhere I could but I can't find anyone that sells just the pump diaphragm for my carb. The pump diaphragm is different from later models. I don't want to spend $80 or so for an entire kit just to get a part that should cost $10 at the most. My carb doesn't need a complete rebuild and I doubt it will in my lifetime with the amount of use my car will get.

~DJ~ AKA "Bleach"
1956 Ford Fairlane Town Sedan 30K original miles

Looks like one for a Holley 4150/4160 may fit.

I'll have to look into that. The difference this carb has from later designs is the pump diaphragm has a long narrow plunger shaft.


~DJ~ AKA "Bleach"
1956 Ford Fairlane Town Sedan 30K original miles

Try this Internet address for Autolite 4100 accelerator pump diaphragms, DJ.
https://buy.walkerproducts.com/carburetor/components/ford/ford-4bbl-4100-3-carburetor-components.html

NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

Thanks Charlie I did check them out before and they don't have it.


~DJ~ AKA "Bleach"
1956 Ford Fairlane Town Sedan 30K original miles

Hmmmm...Gotta Fish Carburetors seems to specialize in 2100 and 4100 Autolite carburetors.  They advertise extensively on eBay both rebuilt units and miscellaneous replacement components like vent tubes, choke actuating components, float bowl baffles, etc.  Scott Parsons is the contact name that I have.  The web site address is  www.gottafishcarburetors.comThe email address is  carbs@gottafishcarburetors.comPerhaps Scott will help you out...


NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

I haven't checked him out recently and forgot all about him.

~DJ~ AKA "Bleach"
1956 Ford Fairlane Town Sedan 30K original miles

Still waiting to hear back from gottafishcarburetors. I kind of thing this guy is my last hope. I'm beginning to think I'll have to bite the $80 and buy a whole kit just for the $10 part.
It's starting to sound like the day is coming that you'll have to buy a whole car just to get the tires.

~DJ~ AKA "Bleach"
1956 Ford Fairlane Town Sedan 30K original miles

You might try Daytona Carb Parts in Florida.  They have helped me out in the past on some individual parts for different carbs.  If the long extension is the only thing keeping a later model diaphragm from working on your earlier carb, then you might consider simply using a machined separate extension that fits in the cover between the diaphragm and the lever.

Lorena, Texas (South of Waco)

Is the carburetor the one with the check ball instead of the umbrella valve on the accelerator pump??
if so, I rebuilt one for a friend's '57 Ford, and used the regular diaphragm. The kit came with a little extension (just a little metal rod) to be used in that particular model of carburetor.
You can get a regular diaphragm, and cut a piece of the rod from your original part and use it as a extension.

This guy is rebuilding the exact same kind of carburetor, and using the extension I talked about!!
  https://www.youtube.com/watch?v=BUrP_kTbMXs

Túlio Lazzaroni "FORD", Florianópolis SC Brasil.

'74 Ford Galaxie 500 292 V8

'82 Ford Galaxie Landau 302 V8

'98 Chevrolet S10 4.3 V6

'01 Ford Focus 1.8 Zetec