Rochester 2-Jet Carburetor Manual

updated February 22, 2003

This is the Delco-Rochester service manual for 2G, 2GV, 2GC and 2GE carburetors.

information added March 4, 2006: The 1964 version of this manual is available here.

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Olds Tri-Power


Some general information:

What is "the Old Car Manual Project"?

The idea is to scan manuals for old, vintage or antique American vehicles and their components and make them available on the web, for free.

Why are we doing this?

Why not? But really - one of the hardest parts of restoring or servicing old machines is getting decent technical information. Often, it's difficult, impossible or expensive to obtain. We think that this kind of information should be freely available, as a public resource for the preservation of our industrial history.

Who are we?

We are some Guys Who Like Old Iron. We can be contacted here

Part 1: 2G-2GC-2GV Manual, Published 1973

idle systems
main metering system
power system
accelerator pump
Model 2G truck
major service operations
adjustment procedures

Part 2: Adjustment Procedures, Published 1980-82
(note: these are jpeg image files, about 250 K)

typical exploded view, 2G, 2GC, 2GV
adjustments 2G-2GV
adjustments 2G-2GV, cont'd.
choke adjustments
choke, cont'd.
vacuum break
vacuum break, cont'd.
throttle and idle adjustments
A/C and CEC adjustment

Part 3: Troubleshooting the 2GC-2GV, Published 1980

Engine Cranks - No Start
Engine Stalls
Sluggish on Acceleration
Runs Uneven or Surges
Poor Economy



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