Skylark V6-3100 3.1L VIN M SFI (1996)
Fan Clutch: Service and Repair
Fig. 1 Typical Variable Speed Cooling Fan
To prevent silicone fluid from draining into fan drive bearing, do not store or place drive unit on bench with rear of shaft pointing downward.
The removal procedure for either type of fan clutch assembly is similar for all vehicles. The unit must be unfastened from the water pump, then it may
be lifted from the vehicle.
The type of unit shown in Fig. 2 may be partially disassembled for inspection and cleaning as follows:
1. Remove capscrews holding assembly together and separate fan from drive clutch.
2. Remove metal strip on front of fan clutch by pushing one end toward fan clutch body to clear retaining bracket.
3. Push strip aside until its opposite end springs out of place, then remove small control piston.
4. Inspect piston for free movement in coupling device. If piston sticks, clean it with emery cloth. If bi-metal strip is damaged, replace entire unit.
These strips are not interchangeable.
5. When reassembling, install control piston so that projection on end will contact metal strip, then install metal strip.
6. After reassembly, clean clutch drive with a solvent soaked cloth. Avoid dipping clutch assembly in any type of liquid.
7. Install assembly in vehicle.
The coil spring type of fan clutch cannot be disassembled, serviced or repaired. If it does not function properly, it must be replaced with a new unit.
