TOHATSU EverRun MX 18E2 Service Manual page 188

Power Unit
1 1
2 2
a
5-36
11) Removing Thermostat
1.
3 3
3
Loosen thermostat cap mounting bolts 1, remove them,
remove cap 2, and take out thermostat 3.
If thermostat cap is seized, tap lightly using a
plastic hammer and then remove.
Inspection of Thermostat
1) Put thermostat 3 in the vessel containing water, heat it,
and measure the temperature at which the thermostat
starts to open.
Valve Opening Temperature :
50.0 - 54.0˚C (122.0 - 129.2˚F)
Valve Full Open Temperature :
63 - 67˚C (154.5 - 152.6˚F)
Replace thermostat if the valve is open even a
little at ambient temperature.
2) Measure valve lift of thermostat when prescribed
temperature has been reached. Replace if the length is
less than specified value.
Water Temperature
65˚C (149˚F)
GB
Valve Lift a
3.0 mm (0.118 in) or over
2st X18E2 2012