Thermostat: Service and Repair

Be careful not to spill coolant over engine compartment. Use a rag to absorb coolant.
- Use Genuine RTV silicone sealant Part No. 999 MP-A7007, Three Bond TB1207D or equivalent.

INSPECTION





1. Check for valve seating condition at normal room temperature. It should seat tightly.





2. Check valve opening temperature valve lift
3. Then check if valve closes at 5°C (9°F) below valve opening temperature.

INSTALLATION








- When installing water inlet apply liquid gasket as shown.
- Use Genuine RTV silicone sealant Part No. 999 MP-A7007, Three Bond TB1207D or equivalent.
- Install thermostat with jiggle valve or air bleeder at upper side. After installation, run engine for a few minutes, and check for leaks.

WATER OUTLET

Inspection





Visually inspect for water leaks. If there is leakage, apply liquid casket.

Installation





1. Use a scraper to remove old liquid gasket from water outlet.
- Also remove traces of liquid gasket from mating surface of cylinder head.
2. Apply a continuous bead of liquid gasket to mating surface of water outlet.
- Use Genuine RTV silicone sealant Part No. 999 MP-A7007, Three Bond TB1207D or equivalent.