F 250 2WD Pickup V8-7.3L DSL (1990)
2.
Remove 90 mm diameter pulley from automatic tensioner assembly. Discard bolt, pulley and bearing dust shield. Refer to Figure 5.
3.
Install new 76 mm pulley, bearing, dust shield and bolt assembly (E7UZ-8678-A) to automatic tensioner assembly. See Figure 5.
4.
Install new accessory drive belt. (1987-93 models - E7UZ-8620-J, 1994 models - E8TZ-8620-S).
BELT EDGE WEAR AND LOSS
1.
Remove and replace accessory drive belt with new service replacement belt. See Figure 1 for correct parts usage.
2.
Start engine and while idling, observe location of belt on automatic tensioner pulley. If belt tracks near the pulley flange, Figure 2, replace with
automatic tensioner (E7TZ-6B209-G).
