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Home >> Volkswagen >> 1984 >> Vanagon Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.9L Water-Cooled 4-CYL >> Engine Cooling >> Water Pump >> Installation

Water Pump: Installation

  1. Clean all sealing surfaces and replace gaskets. Install water pump and thermostat housing assembly. Tighten bolts and nuts. Attach hoses and tighten clamps. Install drive belt and adjust so belt deflects 3/8-9/16" (10-15 mm) with thumb pressure.
  2. Fill and bleed cooling system. Set heater control valve to maximum heat. Open control valve for auxiliary heater under rear seat (if equipped). Remove radiator grille and raise front of vehicle about 16". Open bleeder screw on upper right corner of radiator.
  3. Open bleeder valve in engine compartment (turn counterclockwise). Start filling expansion tank until full. Start and run engine at 2000 RPM. Keep topping tank until coolant flows from bleeder screw on radiator without any air bubbles. Add coolant until tank is full and install cap on tank.
  4. Turn engine off and restart after 20 seconds. Open expansion tank cap with engine running at 2000 RPM. Close bleeder screw on radiator when coolant is flowing out. Add coolant to expansion tank until full and close tank tightly.
  5. Close bleeder valve in engine compartment. Switch engine off. Top up refill tank to maximum mark. Attach pressure tester to expansion tank and run engine until cooling fan has cycled. After checking for leaks, remove tester. Tighten cap on expansion tank.
NOTE: For information on cooling system capacities and other cooling system components, see ENGINE COOLING SYSTEMS article in this section.
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