Rebuilding Holley 2300 (Six-Pack)

[ladd69]

Hey!

I am rebuilding my sixpack and wondering what is that black piece in top of meteringblock?
its broken and there was none in the restore kit i bought.

another question, back side of tower is a port, gasket is blow, whats this port for ?

 

[pnora]

Its a bowl vent baffle.

 

[pnora]

The back part I do not believe is used in that application. If I remember on some other cars that share that model carb it was drilled for some sort of air idle compensater device.

 

[Demonic]

Correct. Port is known as the "hot idle compensator" You can find them in factory 4bbl Hollys on the side, under a rectangular cover. A little bi-metal strip that opens at some per-determined temperature.

What Does the Hot Idle Compensator Do? - Mikes Carburetor Parts

What does the hot idle compensator do? Do you really need it on your carburetor? Find out here.

www.carburetor-blog.com

 

[RJRENTON]

Correct. Port is known as the "hot idle compensator" You can find them in factory 4bbl Hollys on the side, under a rectangular cover. A little bi-metal strip that opens at some per-determined temperature.

http://[URL][URL]https://www.carbur...e-base/what-does-the-hot-idle-compensator-do/

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View attachment 1431336

YES.....I agree ..... its a hot idle compensator valve....a temperature actuator bi-metal air bleed that opens to add additional idle air to.the fuel mix when underhood temps exceed a certain value, to relieve a rich mixture. Usually found on A/C equipped cars but is used on the Holley R-4144 replacement center carb for six barrel/six pack applications. It wss NOT on the original carbs....just my opinion of course....
BOB RENTON

 

[ladd69]

Its a bowl vent baffle.

What does it do ?

 

[Demonic]

The bowl vent baffle stop light to moderate fuel slosh. The older ones were brass, which is what I'd replace it with.

Pic upside down: