7.6 Thermostat Housing

THERMOSTAT HOUSING                                                                                                          7.6
PREPARE                                                             d.    See Figure 7-11 . Install and secure new clamp (1)
                                                                          on positioning mark (3) as shown.
Drain coolant. See COOLANT (Page 7-8).                                    Special Tool: HOSE CLAMP PLIERS (H0-41137)

REMOVE                                                                                                           ,..   Ii

 PART NUMBER                   TOOL NAME
HD-52948               THERMOSTAT REMOVAL TOOL

                            NOTE
     Remove hose only if replacing thermostat housing.
     Pry overlap of clamps to remove. If clamps must be cut, use
     a sharp high-quality wire cutter.

1.    See Figure 7-9. Remove thermostat housing.

      a.   Remove and discard clamp (2). Remove hose (1)            1.    Hose
           from thermostat housing (4 ).                            2.    Clamp
                                                                    3.    Screws (2)
      b.    Remove screws (3).                                      4.    Thermostat housing assembly
                                                                         Figure 7-9. Thermostat Housing Assembly
2.    See Figure 7-10. Remove thermostat from housing
      assembly.

      a.   Push thermostat tool ( 4 ) up slightly and rotate
           thermostat (2), remove from thermostat housing (1 ).
           Special Tool: THERMOSTAT REMOVAL TOOL
           (HD-52948)
      b.    Inspect o-ring (3), replace as required.

INSTALL

 PART NUMBER                    TOOL NAME
HD-41137               HOSE CLAMP PLIERS
HD-52948               THERMOSTAT REMOVAL TOOL
                                                                    1.    Thermostat housing
        FASTENER                        TORQUE VALUE                2.    Thermostat
T hermostat housing screws         7 1-89 in-lbs 8-10 N·m           3.    O-ring
                                                                    4.    Thermostat tool
1.    See Figure 7-10. Install thermostat.                                     Figure 7-10. Thermostat Tool

      a.   Push thermostat tool (4) up slightly and rotate
           thermostat (2) to install in thermostat housing ( 1 ).
           Special Tool: THERMOSTAT REMOVAL TOOL
           (HD-52948)
      b.   Inspect o-ring (3), replace as required.

      c.    Use coolant, lube o-ring.

2.    See Figure 7-9. Install thermostat housing.

      a.    Position thermostat housing (4).

      b.    Install screws (3). Tighten.
            Torque: 71-8 9 in-lbs (8-10 N·m) Thermostat
            housing screws
      c.    Clean inside hose (1 ) and install.

9400078 4                                                                                                                   7-11
                                            COMPLETE

                                            Fill system with coolant. See COOLANT (Page 7-8).

   1.   Clamp
   2.   Hose
   3.   Positioning mark
           Figure 7-11. Clamp Positioning

7-12                                                                                        94000784