THERMOSTAT SERVICING
Disassembly
Remove the thermostat cover and O-ring from cylinder head.
Remove spring, thermostat, and gasket.
Remove the cylinder head if cylinder head thermostat seal requires replacement. Place new seal in the cylinder head with side marked “TO CYL HEAD” facing thermostat. Refer to Cylinder Head Installation on p. 217.
- Cylinder head seal
Inspection
Inspect all parts for cracks, heat damage, or signs of corrosion. Replace damaged parts. Clean debris from housing and parts.
Assembly
Assembly is the reverse of disassembly. Pay close attention when performing the following additional tasks.
Coat threads of thermostat cover with Gasket Sealing Compound and install new O-ring. Install and tighten cover to a torque of 120 to 144 in. lbs. (13.5 to 16 N•m).
