ENGINE MECHANICAL
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 3A-91
Adapter / Oil Thermostat
Removal
1. Disconnect wire from oil temperature audio warning switch.
2. Using a suitable container to catch oil, completely loosen hose fittings retaining oil lines
to adapter / oil thermostat. Make matching marks on hoses to assist in reassembly.
3. Completely loosen hex head screw fitting retaining adapter to cylinder block.
75385
a
b
c
d
b
Typical
a-Oil Temperature Audio Warning Switch
b-Hose Fitting
c-Adapter / Oil Thermostat
d-Screw Fitting
4. Lift adapter and screw fitting from engine. Remove fitting and sealing washer.
5. If not already accomplished, remove old O-ring from groove on adapter (on underside
when adapter is mounted).
75528
a
b
c
d
a-Adapter / Oil Thermostat
b-Sealing Washer
c-Screw Fitting
d-O-Ring Seal