Adjusting cam

Posted by Bob Carabbio on March 01, 1998 at 14:24:41

In Reply to: Steering Adjustments
posted by Chuck Gillman on March 01, 1998 at 08:18:56

The adjusting cam is split, and has a split conical wedge inside it that spreads in both directions to eliminate play.
This assembly plus a little rust can develop a death-grip, so that the only sure remedy is to take it apart and drive out the cam/wedge from the back of the sector shaft housing.
If it's not that bad, then remove the nut from the cam stud, back the other three nuts off a bit (1/8" or so) apply penetrating oil, and hammer (using a piece of wood) against the gear housing to drive it toward the starter out away from the sector shaft housing just a bit. Then tighten the three stud nuts evenly, and the adjusting stud will often pop the wedge free on its way back in. A little tapping with a brass drift on the hex portion of the cam will assist it's divorce from the wedge.Disassemble and wire brush the cam and wedge, and go back to adjusting.

MAKE SURE that you adjust with the wheels off the ground, and run through the full travel to check for tight spots.The backlash is only minimal for the exact center of the steering travel, and increases rapidly toward the "locks". If there's bending of the arms or the drag link, or excessive wear in the balls, or overtightened adjusters "Center" may not be straight ahead.There's another adjustment at the bottom for centralizing the sector which can't be performed properly with the box installed.

Bob Carabbio




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