1. Inspect the thermostat for the following.
The valve should not open under normal temperature.
Opening temperature and valve lift
If there is malfunction, replace the thermostat.
Thermostat initial-opening temperature
80-84°C {176-183°F}
Thermostat full-open temperature
97°C {207°F}
Thermostat full-open lift
More than 8.0 mm {0.31 in}
WATER PUMP REMOVAL/INSTALLATION [LF]
1. Remove the battery cover.
2. Disconnect the negative battery cable. (See
BATTERY REMOVAL/INSTALLATION [LF]
.)
3. Drain the engine coolant. (See
ENGINE COOLANT REPLACEMENT [LF]
.)
4. Remove the air cleaner. (See
INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF]
.)
5. Loosen the water pump pulley bolt and remove the drive belt. (See
DRIVE BELT REPLACEMENT
[LF]
.)
WARNING:
During inspection, the thermostat and water are extremely hot
and can cause severe burns. Do not touch the thermostat and
water.
WARNING:
Never remove the cooling system cap or loosen the radiator drain
plug while the engine is running, or when the engine and radiator
are hot. Scalding engine coolant and steam may shoot out and
cause serious injury. It may also damage the engine and cooling
system.
Turn off the engine and wait until it is cool. Even then, be very
careful when removing the cap. Wrap a thick cloth around it and
slowly turn it counterclockwise to the first stop. Step back while the
pressure escapes.
When you are sure all the pressure is gone, press down on the cap
using the cloth, turn it, and remove it.
2007 Mazda MX-5 Miata Sport
2007 ENGINE Cooling System - MX-5 Miata
Microsoft
Thursday, July 09, 2009 3:06:06 PM
Page 18
© 2005 Mitchell Repair Information Company, LLC.