Thermostat; Removal Inspection Installation - Mazda MX-5 1990 Workshop Manual

E
THERMOSTAT
THERMOSTAT
REMOVAL
I
INSPECTION
I
INSTALLATION
Caution
• Obtain the code number and deactivate the audio anti-theft system before disconnecting the
battery. (Refer to page T -113.)
• Position the hose clamp in the original location on the hose, and squeeze the clamp lightly
with large pliers to ensure a good fit.
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the order shown in the figure.
4. Install in the reverse order of removal.'
GASKET. REPLACE
INSTALL WITH PRINTED
FACE (GREEN) TOWARD
THERMOSTAT
1. Radiator hose upper
2. Water thermoswitch connector
3. Thermostat cover
05UOEX·019
E-8
2
19-25
~(1.9-2.6,
I
14-19)
4. Thermostat
N·m (m-kg, tt-Ib)
05UOEX·018
Inspection ..................................... page E-8
INSPECTION
1. Visually check that the thermostat valve is airtight.
2. Place the thermostat and a thermometer in water.
3. Heat the water and check the following:
Initial-opening temperature
Main: 86.5-89.5°C (188-193°F)
Sub: 83.5-86.5°C (182-188°F)
Full-open temperature: 100°C (212°F)
Full-open lift
Main: 8.0mm (0.31 in) min.
Sub: 1.5mm (0.06 in) min.