Holley 1904 seems to have been modified

I picked up a Holley 1904 at a garage sale. I bought a rebuild kit.

When I opened the carb, I discovered that there is no large spring between the accell pump gasket and the main well. The shaft of the accell pump has been hacksawed off, and the area the shaft goes into has been plugged with an odd screw that has a shaft

Why would somebody have made these mods, and, can I fix them?

I have no idea why folks do shit like that!

You should see some of the stuff I have to deal with regarding not just the 1904 but nearly every carb I receive for rebuild. In order to not have to replace a very inexpensive part, folks will spend hours "manufacturing" some kind of boondoggle!

Everything regarding the actual full range of carburetor operation for the 1904 is contained in the main well/"gasket"/plunger assembly! Other than a few precision-drilled holes and passages in the main well, there is nothing else! When the systems are right, then the carb works perfectly for years. When the systems are wrong, nothing works, it's real cut and dry!

If you will post pics of the rest of the carb including everything, I'll take a look and see what all you are missing. Most likely I have everything available. I'll also need to know what engine application it's going to be used on. Simply spread all the parts out close together on a good background so I can see everything.

Thanks! My plan is to put it on a a willys f-head 4. It's common practice when an fhead gets stuck in a cj2a. Using the Holley gives you enough clearance to use the stock willys hood, otherwise, you have to cut a hole in the hood and stick on a steel box.
Here's some more pics:

Ok, let me go down the list of what I can see that you need. This is assuming you do have the correct rebuild kit for it.

1) one of the "long" screws for mounting the main well to the body.

2) a "short" accel pump plunger and fixture spring.

3) an accel pump plunger mounting rod.

4) an accel pump actuator lever.

5) an accel pump return spring (tapered/conical spring).

6) an accel pump "shooter" and mounting screw.

7) the two screws used to mount the throttle body to the main body.

Since the carb has the choke cable mount on the left side (looking directly at the throttle actuator), it was for either some version of a 196 or May have been used on an I-6 engine?? Also, what is the center-to-center spacing of the mounting boss holes, should be either 2-3/4" or 3".

Also what is the list number stamped on the body? With that number I can tell ya what the original application was.

Just need to make sure we can package up all parts needed that will be correct for this item.

Also send me an email to:

michael@IHPartsAmerica.com

And I'll quote you the price and all regarding all the parts.

Thanks for the information jim!

That carb is a list 3577 which makes it an oem unit used on a four cylinder continental (f-162 or f-163 in a towmotor forklift, around 1966.

And it's a 2-3/4" stud spacing mount.

I'll check the parts situation later today and get back to ya!

I have a similar carb, this one off a versatile 400 swather (Ford inline 6 200cid). It also lacks an accel plunger and has a similar screw that bears against a small button in the accel valve diaphragm (as in your photo), and a spring that bears on the same side of the diaphragm. The parts look original. I assume that this is a vacuum activated accel pump. When vacuum below the throttle plate is high (at idle) the diaphragm is drawn toward the screw, against spring pressure. When the vacuum drops (throttle opens) the spring pressure overcomes the vacuum and the accel pump delivers additional fuel. The screw located in the bore where an accel pump shaft would be seems to control the volume of fuel that the accel pump can deliver. This is a governed engine so acceleration from idle is infrequent but loads May change frequently so an accel pump linkage with the throttle shaft May be undesirable.

I haven't been able to find a rebuild kit with a short shaft on the accel pump diaphragm so I'm considering a similar mod to the one in your photos, I.e. Cut the accel pump diaphragm shaft short. Just posting to let you know that the accel pump arrangement on your carb May be original as mine apears to be.

Best,

rod.

None of the "previous owner" modifications to the 1904 carb are "normal" just one of many screwups and crapballs I see with these carbs.

There are three different length accelerator pumps used in this carburetor series. That also entails three different pump actuators and between three and five different accel pump actuator levers. Then we have two positions for mounting the actuator pivot on many list numbers.

These carburetors are far from being "all the same" for a unit that was in production for more than thirty years. The "g" versions (governor) are even more demanding regarding correct components. And some of the Ford industrial engines used a governed 1904 and some used a regular 1904 with a different form of governing system.

This is why I must see pictures off these units under discussion in order to help folks make the right decision regarding parts procurement. Doesn't matter what engine the carb was oem on, but I must see what you have now in order to make recommendations.

I've been dealing with these mixers in depth for the last ten years and I also delt with 'em when new on products manufactured in the 50's, the 60's, and the 70's.