The Ford Model A two tooth steering system is designed to be adjustable to compensate for wear. There are three adjustments to the two tooth steering system that can be made with the steering column in the car. They are: 1. End play in the two tooth sector, 2. end play in the steering shaft, and 3. proper mesh of the two tooth sector in the worm gear. The Model A Ford Service Manual recommends “When it is necessary to make any one of these adjustments, the other two adjustments should also be checked.” Make all adjustments in the order listed above.

 

Tools:

· Standard Screw Driver

· Offset Screw Driver

· Needle Nose Pliers

· 5/8 Wrench

· 7/8 Wrench

 

 

Inspection For: End play in the two tooth sector

To Detect:  Push and pull on pitman arm and feel for movement.

Inspection For: End play in the steering shaft

To Detect:  Push and pull on the steering wheel and feel for movement.

Inspection For: Proper mesh of the two tooth sector in the worm gear

To Detect:  Grip the pitman arm and rotate it back and forth, checking for play before it engages.

Initial Inspection For Problems

Remove Drag Link From Pitman Arm

Tighten

Pitman Arm

Tighten Steering

Box to Frame

Tighten the three Stud Cover Nuts

Tighten Housing Cover Adjusting Stud Nut

Prior to Inspection and Adjustment

Jack up the front of the vehicle, place the car on jack stands and block the rear wheels.

To adjust: Loosen the lock, nut and with an offset screw driver, tighten the Sector Thrust Screw.

To inspect: There should be no end play, yet the steering arm should rotate freely. Repeat the adjustment if necessary.

Remember to: Tighten the lock nut on the thrust screw when finished.

1. End Play in Two Tooth Sector

PITMAN ARM

SECTOR

(TWO TOOTH)

WORM GEAR

STEERING SHAFT

Two Tooth Steering Basics                              Simple once known  Printable Version

by Paul Modlin and Mishawaka High School students: Tim Glasco, Bradley Howe, and Christian Mestach

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Printable Version Two Tooth .pdf