1968 FORD MOTOR COMPANY

1968 FORD MOTOR COMPANY

CARBURETORS

All Makes & Models

Note: Carburetors Covered in this file are for all Ford, Mercury & Lincoln Models.

Carter Carburetor Adjustments, Lincoln, 8 Cylinder:

Model #C8VF-E (ID Tag Marked Autolite)

4 Barrel

Idle Fuel Screw: 1 Turn

Float Level: 3/16"

Float Drop: 23/32"

Pump Travel: Rod Connected to Inner Hole

Fast Idle Throttle Valve Clearance: .026"

Choke Unloader Setting: 1/8"

Secondary Throttle Lever Setting: .020"

Choke Piston Linkage Setting: 7/64"

Automatic Choke Setting: 1 Lean

Carter Model YF Carburetor Adjustments:

Carburetor #C8DF-A: (I.D. Tag Shows Autolite)

1 Barrel

Idle Mixture Screw Setting: 1-1/2 Turn

Float Level: 7/32"

Fast Idle Setting: .035"

Choke Unloader Setting: .280"

Choke Setting: Index

Carburetor #C8DF-B: (I.D. Tag Shows Autolite)

1 Barrel

Idle Mixture Screw Setting: 1-1/2 Turn

Float Level: 7/32"

Fast Idle Setting: .046"

Choke Unloader Setting: .280"

Choke Setting: 1 Lean

Ford Autolite Carburetor Adjustments, Model 1100:

Carburetor #C8AF-E:

1 Barrel

Mixture Screws Turns Open: 13.9 to 1 Air to Fuel Ratio

Float Setting (Dry): 1-3/32"

Pump Setting: .190"

Dashpot Setting: .080"

Fast Idle Speed: 1,600 RPM

Choke Plate Clearance: .280"

Dechoke Clearance: 15/64"

Automatic Choke Setting: 3 Lean

Carburetor #C8OF-A:

1 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Setting (Dry): 1-3/32"

Pump Setting: .190"

Dashpot Setting: .080"

Fast Idle Speed: 1,400 RPM

Choke Plate Clearance: .234"

Dechoke Clearance: 15/64"

Automatic Choke Setting: 2 Lean

Carburetor #C8OF-B:

1 Barrel

Mixture Screws Turns Open: 14.5 to 1 Air to Fuel Ratio

Float Setting (Dry): 1-3/32"

Pump Setting: .190"

Dashpot Setting: .100"

Fast Idle Speed: 1,500 RPM

Choke Plate Clearance: .234"

Dechoke Clearance: 15/64"

Automatic Choke Setting: 1 Lean

Autolite Carburetor Adjustments, Model 1940-IV:

Carburetor #DOPF-A; DOPF-C:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: 5/64"

Vacuum Kick: 3/16"

Choke Unloader: 5/32"

Automatic Choke Setting: Index

Fast Idle Speed: 2,100 RPM

Carburetor #DOPF-D:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: 5/64"

Vacuum Kick: 3/16"

Choke Unloader: 5/32"

Automatic Choke Setting: Index

Dashpot Setting: 3/32"

Fast Idle Speed: 2,100 RPM

Carburetor #DOPF-E; DOPF-F:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: No Vacuum, 2nd Step

Choke Unloader: At Wide Open Throttle

Carburetor #DOPF-G; DOPF-H; DOPF-J:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: No Vacuum, 2nd Step

Choke Unloader: At Wide Open Throttle

Dashpot Setting: 3/32"

Carburetor #DOPF-K:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: 1/16"

Vacuum Kick: 5/32"

Choke Unloader: 1/8"

Automatic Choke Adjustment: Index

Dashpot Setting: 3/32"

Fast Idle Speed: 2,100 RPM

Carburetor #DOPF-L:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Fast Idle Cam: 1/16"

Vacuum Kick: 5/32"

Choke Unloader: 1/8"

Automatic Choke Adjustment: Index

Dashpot Setting: 3/32"

Carburetor #DOPF-M; DOPF-N; DOPF-R; DOPF-T:

1 Barrel

Float Setting (Dry): Toe of float should be flush with gasket surface of main body.

Pump Setting: 27/32" from centerline of pump link hole in pump rod to edge of 5/16" boss on main body. Adjust by bending float tang.

Dashpot Setting: 3/32"

Ford Autolite Carburetor Adjustments, Model 2100, 6200-2V:

Carburetor #C8AF-AK:

2 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 3/8"

Fuel Level (Wet): 3/4"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .120"

Fast Idle Cam Linkage Clearance: .110"

Fast Idle Speed: 1,200 RPM

Dechoke Clearance: .060"

Automatic Choke Setting: Index

Carburetor #C8AF-L:

2 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 3/8"

Fuel Level (Wet): 3/4"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .140"

Fast Idle Cam Linkage Clearance: .120"

Fast Idle Speed: 1,400 RPM

Dechoke Clearance: .060"

Dashpot Setting: .125"

Automatic Choke Setting: 1 Lean

Carburetor #C8AF-M:

2 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 31/64"

Fuel Level (Wet): 7/8"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .210"

Fast Idle Cam Linkage Clearance: .170"

Fast Idle Speed: 1,300 RPM

Dechoke Clearance: .060"

Automatic Choke Setting: Index

Carburetor #C8AF-AN:

2 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 31/64"

Fuel Level (Wet): 7/8"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .120"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 1,500 RPM

Dechoke Clearance: .060"

Dashpot Setting: .125"

Automatic Choke Setting: Index

Carburetor #C7AF-U:

2 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 31/64"

Fuel Level (Wet): 7/8"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .120"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 1,500 RPM

Dechoke Clearance: .060"

Dashpot Setting: .125"

Automatic Choke Setting: Index

Carburetor #C8OF-K; C8OF-U:

2 Barrel

Float Level (Dry): 31/64"

Fuel Level (Wet): 7/8"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .120"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 1,500 RPM

Dechoke Clearance: .060"

Dashpot Setting: 1/8

Automatic Choke Setting: Index

Carburetor #C8ZF-G:

2 Barrel

Float Level (Dry): 3/8"

Fuel Level (Wet): 3/4"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .140"

Fast Idle Cam Linkage Clearance: .120"

Fast Idle Speed: 1,400 RPM

Dechoke Clearance: .060"

Dashpot Setting: 1/8

Automatic Choke Setting: 1 Lean

Carburetor #C8AF-BD:

2 Barrel

Mixture Screws Turns Open: 14.0 to 1 Air to Fuel Ratio

Float Level (Dry): 3/8"

Fuel Level (Wet): 3/4"

Pump Setting:

Summer: Hole #2

Winter: Hole #4

Choke Plate Clearance: .130"

Fast Idle Cam Linkage Clearance: .110"

Fast Idle Speed: 1,400 RPM

Dechoke Clearance: .060"

Dashpot Setting: 1/8"

Automatic Choke Setting: 2 Rich

Ford Autolite Carburetor Adjustments, Model 4300-4V:

Carburetor #C8AF-A:

4 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 25/32"

Pump Setting: Hole #3

Choke Plate Clearance: .300"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 1,300 RPM

Dashpot Setting: .093"

Automatic Choke Setting:

390 Engine with Imco: 2 Rich

390 Engine with Thermactor: 1 Rich

428 Engine witn Imco: Index

428 Engine with Thermactor: 1 Rich

Carburetor #C8AF-B:

4 Barrel

Mixture Screws Turns Open: 1 to 1-1/2 Turns

Float Level (Dry): 25/32"

Pump Setting: Hole #3

Choke Plate Clearance: .300"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 1,400 RPM

Dashpot Setting: .093"

Automatic Choke Setting:

390 Engine with Imco: 2 Rich

390 Engine with Thermactor: 1 Rich

428 Engine witn Imco: Index

428 Engine with Thermactor: 1 Rich

Carburetor #C8VF-F:

4 Barrel

Float Level (Dry): 25/32"

Pump Setting: Hole #1

Choke Plate Clearance: .230"

Fast Idle Cam Linkage Clearance: .160"

Fast Idle Speed: 1,500 RPM

Dechoke Clearance: .300"

Dashpot Setting: 3/32"

Automatic Choke Setting: 1 Rich

Carburetor #C8VF-H:

4 Barrel

Float Level (Dry): 25/32"

Pump Setting: Hole #2

Choke Plate Clearance: .230"

Fast Idle Cam Linkage Clearance: .160"

Fast Idle Speed: 1,300 RPM

Dechoke Clearance: .300"

Dashpot Setting: 3/32"

Automatic Choke Setting: 1 Rich

Carburetor #C8ZF-C:

4 Barrel

Float Level (Dry): 13/16"

Pump Setting: Hole #2

Choke Plate Clearance: .120"

Fast Idle Cam Linkage Clearance: .090"

Fast Idle Speed: 1,900 RPM

Dechoke Clearance: .300"

Dashpot Setting: .100"

Carburetor #C8ZF-D:

4 Barrel

Float Level (Dry): 13/16"

Pump Setting: Hole #1

Choke Plate Clearance: .140"

Fast Idle Cam Linkage Clearance: .100"

Fast Idle Speed: 2,100 RPM

Dechoke Clearance: .300"

Dashpot Setting: .100"

Holley Carburetor Adjustments:

Model #4150 & 4160:

Carburetor # C8OF-AA

4 Barrel

Float Level (Dry): Adjust Float Parallel to Bowl Floor.

Fuel Level (Wet): Fuel Level should be at the level with the threads on the bottom of the sight hole

Choke Setting: Index

Fast Idle: 1,350 RPM

Model #4150 & 4160:

Carburetor # C8OF-AB

4 Barrel

Float Level (Dry): Adjust Float Parallel to Bowl Floor.

Fuel Level (Wet): Fuel Level should be at the level with the threads on the bottom of the sight hole

Choke Setting: Index

Fast Idle: 1,550 RPM

Dashpot Setting: .100"

Model #4150 & 4160:

Carburetor # C8OF-C

4 Barrel

Float Level (Dry): Adjust Float Parallel to Bowl Floor.

Fuel Level (Wet): Fuel Level should be at the level with the threads on the bottom of the sight hole

Pump Lever Clearance: Hole #1

Choke Setting: 3 Rich

Choke Unloader Clearance: .300"

Fast Idle: 1,900 RPM

Dashpot Setting: .100"

Model #4150 & 4160:

Carburetor # C8OF-D

4 Barrel

Float Level (Dry): Adjust Float Parallel to Bowl Floor.

Fuel Level (Wet): Fuel Level should be at the level with the threads on the bottom of the sight hole

Pump Lever Clearance: Hole #2

Choke Setting: 3 Rich

Choke Unloader Clearance: .300"

Fast Idle: 2,100 RPM

Dashpot Setting: .100"

Model #4150 & 4160:

Carburetor # C8AF-AD

4 Barrel

Float Level (Dry): Adjust Float Parallel to Bowl Floor.

Fuel Level (Wet): Fuel Level should be at the level with the threads on the bottom of the sight hole

Pump Lever Clearance: Hole #2

Choke Unloader Clearance: .300"

Fast Idle: 2,100 RPM

Dashpot Setting: .100"