Chrysler DODGE D150 1993 Service Manual page 1495

25 - 18 EMISSION CONTROL SYSTEMS
Fig. 2 Air Filter Housing—Diesel
Fig. 3 Air Filter Element—Diesel
INSTALLATION
(1) Install air injection pump and two bolts to
mounting bracket. Tighten bolts to 40 N*m (30 ft.
lbs.) torque.
(2) Install pulley and three mounting bolts.
Tighten bolts to 11 N*m (105 in. lbs.) torque.
(3) Install drive belt. Refer to Group 7, Cooling
System. See Belt Removal/Installation.
(4) Clean the gasket mounting area on the air
pump and valve.
(5) Install a new gasket (Fig. 4) (relief valve-to-
pump) and install relief valve to pump. Tighten bolts
to 10 N*m (95 in. lbs.) torque.
(6) Install relief valve hose and hose clamp to re­
lief valve.
•
RELIEF
VALVE J9325-39
Fig. 4 Air Injection Pump and Components
AIR INJECTION PUMP RELIEF VALVE
REMOVAL
(1) Remove the relief valve hose clamp (Fig. 4) and
remove hose at relief valve.
(2) Remove relief valve from air pump (two bolts)
(Fig. 4). Discard old gasket.
INSTALLATION
(1) Clean the gasket mounting area on the pump
and valve.
(2) Install a new gasket (Fig. 4) (relief valve-to-
pump) and install relief valve to pump. Tighten bolts
to 10 N*m (95 in. lbs.) torque.
(3) Install relief valve hose and hose clamp to re­
lief valve.
CHECK VALVE—AIR INJECTION TUBE
REMOVAL
(1) Remove the hose clamp at inlet side of valve.
(2) Remove hose from valve.
(3) Remove valve from catalyst tube (unscrew). To
prevent d a m a g e to catalyst tube, a b a c k u p
w r e n c h must be u s e d on tube.
INSTALLATION
(1) Install valve to catalyst tube. Tighten to 33
N«m (25 ft. lbs.) torque.
(2) Install hose and hose clamp to valve.
COOLANT TEMPERATURE SENSOR
For description, operation, diagnosis and removal/
installation procedures, refer to Group 14, Fuel Sys­
tems.