Cooling System/Coolant heater CTM3274 (01JUL99) 30-27 Saran Liter Engines 060799 PN=226 REPLACING THE COOLANT HEATER (4 AND 6 CYL. ENGINES) 1. Unplug heater from electrical power source. 2. Drain cooling system. 3. Remove electrical cord, hold heater element (F) in place to prevent that it rotates, then loosen nut (B). Remove adapter (C) then pull heater element out of block. 4. Check for heating operation of the element. N CAUTION: Energize coolant heater only when heater element is immersed in coolant. Heater element could burst and result in personal injury. NOTE: The heater element cannot be repaired. If defective, replace it. 5.
Assemble coolant heater (110 or 220 V) as shown in illustration. -UN-10MAY95 6. Place heater element in block with flats on thread in vertical position. The element must not touch internal walls of the block. 7. Tighten nut to 35 N·m (25 lb-ft). CD30426 NOTE: Heater element may have a tapered surface instead of a thread. In this case position heater element properly, then tap into place with a rubber mallet. A—Cord B—Nut C—Adapter D—O-Ring E—Gasket F—Heater element CD,3274,G30,19 -19-04JAN99 30 27