A/C Kit - Pulley Interference
87isuzu2BULLETIN NUMBER ISSUE DATE GROUP
SB87-12-003 July 2, 1987 HEATING & A/C
1987 P'UP (KB) AND TROOPER II (KT) AIMI AIR CONDITIONING KIT FAN-TO-PULLEY INTERFERENCE (4ZD1 GASOLINE ENGINE)
VEHICLES AFFECTED
1987 P'UP (KB) and Trooper II (KT) models with 4ZD1 gasoline engine and American Isuzu Motors Inc. air conditioning kit.
SERVICE INFORMATION
Manufacturing tolerances on individual vehicles may result in fan-to-crankshaft pulley interference when an American Isuzu Motors Inc. air conditioning kit is added. A spacer is available to eliminate this interference.
Kits shipped after the effective date of this Service Bulletin will include the spacer with instructions for its use. The spacer must be ordered separately for use with kits already in dealer stock.
SERVICE PROCEDURE
1. Install the air conditioning kit according to the instructions packed with the kit. Also see SB87-12-
002 for information concerning relocation of A/C relay on 1987 Trooper II models.
2. When installing the new engine cooling fan and clutch assembly, discard the bolts used to secure the old cooling fan.
FIGURE 1:
3. Refer to Figure 1. Install the studs and place the spacer over the studs.
4. Slide the fan and clutch assembly over the studs and secure with the nuts. Torque the nuts to 4-7 ft.lbs. (0.6-1.0 kg-m).
5. Complete the air conditioning kit installation as described in the kit instructions.
PARTS INFORMATION
Part No. Description
2-90050-731-0 Fan Spacer Kit