Hey Mr. White,
I'm in the process of getting Lorrie Van Haul

http://msamericanpi.bravehost.com/dodge.htm

up and running so that I'll have some transport when I pull the Cylinder Heads, and Exhaust Manifolds off of Ms. American 3.14159

http://msamericanpi.bravehost.com/galaxie.htm

in order to get them planed flat to eliminate the 3/64" gap on cylinders 1, 4, 5, and 8.

In the process, I am rebuilding/restoring a Holley 1920 Single Throat Carburetor for Lorrie's 1967 Dodge 225 Slant-Six engine.

http://msamericanpi.bravehost.com/1920carb.htm

And I've come across something for which I can't for the life of me find an explanation.

Here is a JPG of it.

You are looking down the throat of the Holley 1920 at something that looks like a Russian Orthodox Crucifix.

[IMG][/IMG]

What is IT? And is there a way to remove it so that it can be properly serviced? Or does it EVEN need servicing.

I've done all kinds of searches regarding it, and come up with nada. It isn't even shown in my Chilton's manual exploded view, nor the rebuild kit for the H1920.

Any information would be appreciated.

Hope you are well, and holding forth.

JC

Those old holley single one barrels on those old slant 6 dodges accounted for a whole lot of carburetors.
I cut my teeth on these back in the day.......

Nope you are not going to find this "cross" in the part diagram, Just like the Autolite 1100 these passages are cast into the main bowl so they are not removed.
What is really important though whenever doing carb like this is to give it plenty of time to soak in carb cleaner then use brushes to make sure all passages are clean.

Most carbs like this in the late 60's and early 70's used soft lead plugs to block the passages, simply remove the plugs and then you can clean with a bristle brush. Its been awhile since I did a 1900 series holley, but this is what I do with all of the 1100 I now rebuld.
Mascara makeup brushes work perfectly of these small passages. I normally remove all the lead plugs, soak for my usual week then go through it with the brushes and compressed air, then I resoak for another week just to get these small passages really really clean.

Just an FYI though, to really get that old slant six to wake up, dump the holley and go with the optional Carter 2 barrell. These slant 6's really needed some more CFM's to take advantage of all that torque. Crysler even made a Hyper-pak for a rumored 6 cylinder NASCAR division that had a ram air 4 barrel carter AFB back in 1960. The old 1960 valiant outfitted this way was UNBEATABLE.

Clifford reseach will be able to satisfy all performance needs for this.
The idea of an old mail van as a sleeper with a lopey slant 6, that is able to light up all those foreign bumblebess out there today does have appeal.

Good Luck,

Bill White

BW:
<b>"Those old Holley single one barrels on those old slant 6 dodges accounted for a whole lot of carburetors. I cut my teeth on these back in the day......."</b>

This one has been on Lorrie Van Haul since I got her in 1974

<b>"Nope you are not going to find this "cross" in the part diagram, Just like the Autolite 1100 these passages are cast into the main bowl so they are not removed.
What is really important though whenever doing carb like this is to give it plenty of time to soak in carb cleaner then use brushes to make sure all passages are clean."</b>

This one has been soaking since early Friday last in Berryman's ChemDip.

<b>"Most carbs like this in the late 60's and early 70's used soft lead plugs to block the passages, simply remove the plugs and then you can clean with a bristle brush. Its been awhile since I did a 1900 series Holley, but this is what I do with all of the 1100 I now rebuild:

Mascara makeup brushes work perfectly of these small passages."</b>

GREAT tip! :)

<b>"I normally remove all the lead plugs, soak for my usual week then go through it with the brushes and compressed air, then I re-soak for another week just to get these small passages really really clean."</b>

Alright.

<b>"Just an FYI though, to really get that old slant six to wake up, dump the Holley and go with the optional Carter 2 barrel. These slant 6's really needed some more CFM's to take advantage of all that torque. Chrysler even made a Hyper-pak for a rumored 6 cylinder NASCAR division that had a ram air 4 barrel carter AFB back in 1960. The old 1960 valiant outfitted this way was UNBEATABLE."</b>

Alas, I'm afraid that the Intake Manifold/Exhaust Manifold situation kind of precludes this mod. But don't take that to mean that I haven't yearned... :) There is a teenincy Holley Four-Barrel (a 390 CFM Model 4160) over which's picture I have drooled, but again, THAT is but a wet-dream.

<b>"Clifford Research will be able to satisfy all performance needs for this.</b>

Don't think for one minute that this is NOT going to be pursued, but I can't promise anything! :)

<b>"The idea of an old mail van as a sleeper with a lopey slant 6, that is able to light up all those foreign bumblebess out there today does have appeal."</b>

Actually, Lorrie is a kind and gentle little old lady whose MAIN virtue is her sedateness. Also, putting the big britches on the local ricers would be egregiously frowned on by the local County Mounties. :( Besides, moving silently around in a business-like manner has its virtues. Which is NOT to say that Lorrie doesn't get some well-deserved attention. I mean, one time in Houston, she was parked in front of a restaurant between a Mercedes 600, and a Bentley, and as I was sitting in the restaurant, a group of business men coming for lunch stopped and ignoring the M&B proceeded to walk around Lorrie, all the while pointing and commenting on her finer points (of which there are many). Like I have said before: She IS kind of square! But hey..." :)

<b>"Good Luck, Bill White"</b>

Thanks. Things are going along, alas not without hitches... I have run into a couple of speed bumps in this effort. The first being that the Accelerator Pump Diaphragm that came out of the unit is not the same as the APD in the rebuild kit, as you can see in the following JPG

[IMG]http://i285.photobucket.com/albums/ll66/Reignbough_Chase/1920carb24.jpg[/IMG]

Secondly, the Needle and Seat Assemblies are not the same either.

Thirdly, the Float in the Holley 1920 is not a hollow brass unit, but some kind of "foam" shape (obvious impervious to gasoline). I hadn't realized this, and tried to buff up the "brass", but only succeeded in wearing away a small portion of the exterior surface exposing the inner said "foam". This can be seen in the Lorrie Van Haul webpage. To see said webpage, click here, and then scroll down to the JPG of the float:

http://msamericanpi.bravehost.com/1920carb.htm

And if you're so inclined, and would like to see Lorrie Van Haul, click here:

http://msamericanpi.bravehost.com/dodge.htm

Again, thanks for the response. Isn't this FUN!

Hope you are well.

JC