On carbureted engines, remove the air cleaner assembly and disconnect the
wiring from the water temperature switch.
On fuel injected engines, turn the eccentric shaft so that the top mark
of the pulley is aligned with the indicator pin.
Remove the air conditioner compressor, air pump, power steering, and alternator
drive belts. Remove the alternator and the air pump.
Remove the cooling fan and drive assembly.
Remove the drive pulley for the air conditioner compressor, in front of
the alternator/air pump drive pulleys. (It is the pulley on the eccentric
shaft, not the one on the front of the compressor.)
Fig. 1: Rotary engine water pump tightening sequence
Place a pan under the lower radiator hose, then disconnect the hose (or
remove the drain plug, if so equipped) and allow the coolant to drain from
the system.
Disconnect the upper radiator hose and coolant bypass hose.
On fuel injected engines equipped with an automatic transmission, disconnect
the water thermosensor connector and the water thermo switch connector.
Unfasten the attaching bolts and remove the water pump, along with the cooling
fan pulley. Retrieve the spacers or shims from the two studs where the gasket
does not mount. Thoroughly clean old gasket material from the mating surfaces.
To install:
Position and install a new gasket with sealer.
Install the water pump with spacers or shims, as required, and torque the
attaching bolts in the indicated sequence to 13–20 ft. lbs. (18–27
Nm).
On fuel injected engines equipped with an automatic transmission, attach
the water thermosensor and water thermo switch connectors.
Connect the coolant bypass and upper radiator hoses to the water pump.
Connect the lower radiator hose at the radiator (or close the drain plug).
Install the air conditioner compressor drive pulley.
Install the cooling fan and drive assembly. Check the clearance between
the tip of the cooling fan blades and the cowling. Adjust the cowling until
there is 0.63–0.94 in. (16-24mm) clearance.
Install the alternator and air pump.
Install and properly tension all drive belts.
On carbureted engines, install the air cleaner assembly and connect the
water temperature switch wiring.
Connect the negative battery cable. Fill the cooling system to the proper
level with a suitable coolant mixture.
