1973 Delco Quadrajet 4M 4MC 4MV Carburetor Service Manual – PDF DOWNLOAD

Description

1973 Delco Quadrajet 4M 4MC 4MV Carburetor Service Manual – PDF DOWNLOAD

FILE DETAILS:

1973 Delco Quadrajet 4M 4MC 4MV Carburetor Service Manual – PDF DOWNLOAD

Language : English
Pages : 79
Downloadable : Yes
File Type : PDF
Size: 13.7 MB

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DESCRIPTION:

1973 Delco Quadrajet 4M 4MC 4MV Carburetor Service Manual – PDF DOWNLOAD

GENERAL DESCRIPTION:

There are three separate basic carburetor models. They are designated as 4M, 4MC,.and 4MV. The 4M is the basic carburetor equipped for manual choke operation. The 4MC model is an automatic choke carburetor with the choke housing and coil mounted at the side of the float bowl.

• The 4MV is an automatic choke model designed for use with a manifold mounted thermostatic choke coil. Except for choke systems. all models have basically the same principles of operation. The Quadrajet is a l‘ounbarrel, two-stage carburetor of down-draft design. Its simplicity in construction makes it easy to service. yet its versatility and principles of operation make it adaptable from small to very large engines, without major casting changes.
• The Quadrajet carburetor has two stagesin operation. The primary (fuel inlet) side has small l-3/8″ bores with a triple venturi set-up equipped with plain tube nozzles. Operation is similar to most carburetors using the venturi principle.
• Tire triple venturi stack up. plus the small primary bores, result in more stable and finer fuel control during idle and part throttle operation. During ofiiidle and part throttle operation, the] metering is accomplished with tapered metering rods, operating in specially designed jets positioned by a manifold vacuum reSponsive piston.

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