Lubrication & Maint./2000 Hour/24 Month To Install Thermostats IMPORTANT: Install manifold gasket so that smaller (round) holes are at lower left and upper right corners of manifold (matching studs A). 1. Clean all gasket material from thermostat cover and housing mounting surfaces. RG7614A –UN–06NOV97 2. Using guide studs (A) to keep gasket in place, install a new gasket on cylinder head. Installing Thermostat Cover 3. Install thermostat(s) with jiggle wire facing up in the 12 o’clock position. 4. Using a screwdriver to hold thermostat(s) in place, install thermostat(s) and coolant manifold/thermostat cover. 5. Tighten cover cap screws to 70 (52 lb-ft). RG7921B –UN–13NOV97 6.
Lubricate new O-ring with PT507 Multi-Purpose Grease. Install seal (B) in thermostat cover. Thermostat Cover Seal A—Guide Studs B—Seal DPSG,RG34710,112 –19–23NOV01–4/5 7. Install coolant manifold/thermostat cover-to-coolant pump tube (C). Tighten clamps. 8. If not already done, fill cooling system and check for leaks. IMPORTANT: Air must be expelled from cooling system when filling. Loosen temperature sending unit fitting at rear of cylinder head or plug in thermostat housing to allow air to escape when filling system. Tighten fitting or plug when all air has been expelled.
RG8115B –UN–15JAN98 Cover-To-Coolant Pump Tube C—Cover-To-Coolant Pump Tube DPSG,RG34710,112 –19–23NOV01–5/5 35-8 021604 PN=166