D 250 Pickup V8-360 5.9L VIN W (1987)
Air Injection Pump: Service and Repair
Air Injection Pump Replacement
1.
Remove hoses from diverter, control valve, switch/relief valve or pump outlet elbow.
2.
On 4-135 engines, remove air pump drive pulley shield from engine, if equipped.
3.
On all models, loosen pump adjusting and pivot bolts and remove drive belt.
4.
On vehicles equipped with six cylinder engine and A/C, it may be necessary to remove power steering belt.
5.
Remove pulley and/or pump attaching bolts and the pump.
6.
Remove pulley, valves, brackets and outlet elbow, if equipped, from pump.
7.
Reverse procedure to install. Note the following torques: pump pulley screws, 95 inch lbs. on 6 cyl. and V8, 105 inch lbs. on 4 cyl.; pump
mounting bolts, 29 ft lbs; bracket attachment bolts, 30 ft lbs; outlet elbow screws, 125 inch lbs.; air pump drive pulley shield attaching bolts, 125
inch lbs.
