SERVICE MANUAL WATER PUMP, THERMOSTAT & IDLER PULLEYS Section 9 CLEANING, INSPECTION AND REPAIR CLEANING Clean the Fan Idler Pulleys as follows: 1. Wash all parts in  cleaning  solvent  to  remove  all grease. 2. Dry with compressed air. 3. DO  NOT  spin  bearing  cones  with  compressed air. INSPECTION AND REPAIR Inspect  and  Repair  the  Fan  Idler  Pulley  with  Front and Rear Roller Bearing as follows: (Fig. 29) 1. Visually inspect the bearing cones (1, Fig. 29) for binding, roughness, overheating or other damage.    If  the  cones  require  replacement  it  is necessary  to  also  replace  the  bearing  cups  (2 and 3) and spacers (4 and 5). 2. Visually inspect the bearing cups (2 and 3) inside of  the  pulley  hub  for  roughness,  overheating  or other   physical   damage.      If   the   cups   require replacement, replace the cones (1) and spacers (4 and 5) also. 3. Using   a   slide   hammer   with   proper   expander, remove bearing cups from pulley hub.  Remove spacer  (4)  from  groove  in  pulley  hub.    Check bearing    bore    of    hub    for    wear    or    damage. Replace hub if necessary. 4. Check   pulley   shaft   (6)    for    cracks    or    thread damage.  If necessary to replace, cut it out of the bracket   (8).      DO   NOT   damage   the   bracket. Figure 29.  - Fan Idler Pulley Assembly 1. Bearing cone 5. Spacer 2. Bearing cup 6. Pulley shaft 3. Bearing cup 7. Wear sleeve 4. Spacer 8. Bracket REASSEMBLY AND INSTALLATION Reassemble   and   Install   the   Fan   Idler   Pulley   (with Front and Rear Roller Bearing) as follows: 1. Press  shaft  (11,  Fig.  30)  into  bracket  (12)  until head bottoms in bracket counterbore. 2. Install spacer (7) in the groove of pulley hub. 3. Press front bearing cup (6) into pulley bore until it bottoms on spacer (7). 4. While  supporting  the  pulley  by  the  front  bearing cup,  press  rear  bearing  cup  (8)  into  pulley  bore until it bottoms on spacer (7). 5. Install  oil  seal  (9)  (with  lip  facing  out)  flush  with pulley bore. 6. Prepack area between seal (9) and bearing cup (8) with I.H.  251H-EP grease. CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 19