SERIES 60 SERVICE MANUAL 8. Open the drain cock location at the bottom of the thermostat housing to allow the coolant in the housing to drain. 9. Disconnect radiator or heat exchanger, bypass pipe and hose clamps, and remove the thermostat housing. Refer to section 4.4.2and see Figure 1-31. 1. Thermostat (2) 6. Bypass Tube 2. Pipe Plug 7. Thermostat Housing 3. Bolts, Thermostat Housing-to-Cylinder Head (4) 8. Drain Cock 4. Hose, Coolant 9. Seals, Thermostat Housing (2) 5. Hose Clamps (2) 10. Cylinder Head Figure 1-31 Thermostat Housing Removal All information subject to change without notice. (Rev. 2005) 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION 1-41