PB 150 V8-318 5.2L VIN T 2-BBL (1983)
Air Injection Pump: Service and Repair
Air Injection Pump Replacement
WARNING Check condition and tension of air pump drive belt at least once every 12 months or 12,000 miles. The air pump should not be
disassembled for any reason, nor should it ever be clamped in a vise. Do not use a hammer or pry bar on pump housing. Do not lubricate the pump. The
small hole on top of some pumps is not an oil hole. If the engine is to be steam cleaned, mask off the centrifugal filter fan to prevent liquids from
entering the pump.
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 in lbs; air pump drive pulley shield attaching bolts, 125 in
lbs.
