Lanos S Hatchback L4-1.6L DOHC D-TEC MFI (1999)
4. Install a new O-ring seal into the recess in the cylinder head.
5. Secure the thermostat housing to the cylinder head with the mounting bolts.
Tighten the thermostat housing mounting bolts to 20 Nm (15 ft. lbs.).
6. Connect the bypass hose to the thermostat adapter.
7. Secure the bypass hose with a hose clamp.
8. Connect the upper radiator hose to the thermostat housing.
9. Secure the upper radiator hose to the thermostat housing with a hose clamp.
10. Refill the engine cooling system. Refer to Coolant; Service and Repair.
