The engine cooling fan is driven by a belt and is bolted to the water pump. A temperature and engine speed sensitive clutch is used to limit the drag imposed on the engine by the fan.
REMOVAL & INSTALLATION
- Disconnect the negative battery cable.
- Determine whether the fan and clutch are secured with multiple bolts, a single viscous type coupler or a single reverse thread nut. Most early models up to 1982 are either viscous coupler or multiple bolts, whereas models after 1983 are a reverse thread nut.
- To remove and early style fan, lift the tabs over the multiple bolts and remove the bolts from the pump pulley. To remove a viscous type fan, remove the center bolt from the fan, then remove the screws attaching the fan to the viscous coupler.
- To remove late models fans, unscrew the fan clockwise. Remove the fan. The fan cowl may need to be removed. Be careful of the radiator fins.
- Remove the fan from the fan clutch. Install the fan clutch bolts and tighten to 6-7 ft. lbs. (8-10 Nm).
- To install reverse the above procedure.