Honda 954 Service Manual page 479

Suspend the ECT/thermo sensor in a pan of coolant
(50 - 50 mixture) an electric heating element and
measure the resistance through the sensor as the
coolant heats up.
Soak the ECT/thermo sensor in coolant u p t o its
threads w i t h at least
of the pan t o the bottom of the sensor.
Keep the temperature constant for 3 minutes before
testing. A sudden change of temperature will result
i n incorrect readings.
or ECT/thermo sensor touch the pan.
Tern p e ra
Resistance
Replace the sensor if
than 10% at any temperature listed.
Install and tighten the ECT/thermo sensor
ified torque.
seaiing washer
with a new one.
TORQUE: 23 N-m
Connect the ECT/thermo sensor connector.
Fill the system w i t h recommended coolant and bleed
t h e air (page 6-5).
40 mm
(1.6 in) f r o m the b o t t o m
Do not let the thermometer
u re 80°C (68°F) 120°C
t
2.1 - 2.6 kQ 0.65
it is out o f specification b y m o r e
(2.3
(248°F)
0.73 kG
-
THERMO SENSOR TERMINAL
t o t h e spec-
19-13