Subject : Front wheel bearing adjustment

 

    Factory shop manuals for 1963 & 1978  60 series patrol state " tighten nut

 until brake drum binds when turned. Then loosen nut 1/8 turn. This should ...

    Hub turning torque must be within  13 - 39  in-lbs. "

 

    The point at which bearings bind is subject to many opinions.

 

    Backing nut off by 1/8 turn decreases preload  by 0.0048 inch.

 

     A better approach is found in 60 series Toyota Land Cruiser (TLC)

 shop manual.

 

    Lockwashers are interchangeable.

 

    Just letting vehicle down from jackstands scrunches bottom roller elements

  and tends to loosen rollers at 12 O'clock.

 

    Bearing preloads for  swivel housing , ring , pinion , and front wheel bearing

  sets are nearly identical.

 

           ---- For 60 series TLC-----

 

     1)  While rotating front wheel bearing hub , torque bearing adjustment nut

           nut to 43 ft-lbs. This seats bearings and is close to binding bearings.

 

      2)  Loosen nut until it can be turned by hand.

 

      3)  WHILE  rotating hub tork nut to 3 - 5  ft-lbs. This shoul yield  2.475 -

            20.075  ft-lbs  hub turning  tork  ( for Toyota).

 

      For patrol , preload is a tad low.

 

      Moderate pinky finger force at end of 12 inch rachet wrench yields about

  8 ft-lbs.  Yer  very close.

 

       4)  Apply lockwasher and jam nut.

 

 

                             goodlucked