Inspection Of Thermostat; Removing Fuel System; Removing Cylinder Head / Head Cover - TOHATSU MD 70-90C2 Service Manual

13) Inspection of Thermostat

1. Put thermostat in the vessel containing water, heat it, and
measure the temperature at which the thermostat starts to
open.
Replace thermostat if the valve is open even a
little at ambient temperature.
Valve Opening Temperature :
60˚C (140˚F)
Valve Full Open Temperature :
75˚C (167˚F)
2. Measure valve lift of thermostat when prescribed
temperature has been reached. Replace if the length is
less than specified value.
Water Temperature
75˚C (167˚F)

14) Removing Fuel System

Refer to "Removing and Installation of Fuel System" in
Chapter 4.
15) Removing Cylinder Head / Head
Cover
1. Remove air rail and fuel injectors.
Refer to "Removing Air Rail" in chapter 4.
TLDI 75/90C2 2010
Valve Lift a
4.5mm (0.177in) or over
3
a
5
5-29