Unloader Adjustment

Close choke valve, open throttle valves wide which will open choke valve slightly. Measure choke valve opening or clearance between upper edge of valve and air horn wall using drill rod of correct size (see Specifications ). If clearance not correct, adjust by bending tang on throttle lever. Then adjust Choke Vacuum Piston or Vacuum Kick Diaphragm.

Fig 1: Stromberg Ww Carburetor Assembly (Typical)

Courtesy of CHRYSLER GROUP, LLC

CARBURETOR ADJUSTMENT SPECIFICATIONS

Stromberg Code No.

Bendix Part No. Hot (Slow)

Idle (Engine RPM)

Fast Idle (Engine RPM)

Fast Idle Cam Pos.

Float Level Setting

Idle Vent

Vac. Kick

Choke Unloader

Auto. Choke Setting

Man. Trans.

Auto. Trans.

3-226

381062

500

.....

7/32"

.060"

.....

3-243

381095

.....

500

700

5/64"

7/32"

.060"

13/64

15/64"

Index

3-264

381170

650

.....

7/32"

.050"

.....

3-265

381171

.....

600

1600

#28 Drill

7/32"

.050"

D Drill

5/16"

Index

3-272

381192

500

.....

700

#20 Drill

7/32"

.060"

A Drill

5/16"

2 Rich

3-273

⁽¹⁾

.....

500

700

#20 Drill

7/32"

.060"

#4 Drill

5/16"

2 Rich

3-274

381194

650

.....

1350

#20 Drill

7/32"

.050"

A Drill

5/16"

Index

3-275

381195

.....

600

1400

#20 Drill

7/32"

.050"

#4 Drill

5/16"

Index

3-278

381198

500

.....

7/32"

.060"

.....

3-279

⁽¹⁾

650

.....

7/32"

.050"

.....

3-280

381200

.....

500

700

#44 Drill

7/32"

.060"

#4 Drill

5/16"

2 Rich

3-281

381201

.....

600

1400

#20 Drill

7/32"

.050"

#4 Drill

5/16"

Index

3-283

⁽¹⁾

500

.....

7/32"

.096"

.....

3-284

⁽¹⁾

500

.....

7/32"

.096"

.....

3-286

⁽¹⁾

.....

600

1400

#20 Drill

7/32"

.050"

A Drill

5/16"

Index

3-287

⁽¹⁾

.....

500

700

#43 Drill

7/32"

.060"

#2 Drill

15/64"

2 Rich

3-291

⁽¹⁾

500

.....

7/32"

.060"

.....

3-299

381239

.....

600

1400

#20 Drill

7/32"

.050"

A Drill

5/16"

Index

3-308

381238

650

.....

7/32"

.050"

.....

23-153

381094

500-550

.....

3/16"

⁽²⁾

.....

23-160

381123

500-550

.....

3/16"

⁽²⁾

.....

23-195

381185

500-550

.....

190"

.....

23-196

381186

650

550

.....

.190"

.....

23-197

381187

500-550

.....

.160"

.....

⁽¹⁾

381188

650

550

.....

.160"

.....

⁽¹⁾

381218

.....

⁽¹⁾

381281

.....

3/16"

.....

⁽¹⁾

381287

.....

⁽¹⁾

381288

.....

3/16"

.....

⁽¹⁾	Number not available.

⁽²⁾	No idle vent. With throttle closed, distance between top of pump and top of fuel bowl cover is as specified.

Fig 2: Unloader Adjustment

Courtesy of CHRYSLER GROUP, LLC