
I replaced the fan belt. The horrible shrieking has left the engine bay, and so far the car does not overheat. I've still got some fine-tuning to do, but I should be able to drive around town safely.
The basic steps for replacing the fan belt are:
- Disconnect and remove the battery.
- Loosen both of the nuts circled here. The one on the left has a nut on the back of the alternator mount that should be held in place w/another wrench. All the nuts are 1/2 inch.
- Reach down through the battery holder and lift up the alternator. It should swing freely.
- Work the belt off the pulleys, then slide it out and around the fan.
- Slide the new fan belt around the fan, and loop it over the fan pulley and the crankshaft pulley. Make sure you are in the right grooves on the pulley. They are the ones closest to the engine.
- Lift the alternator and work the belt around the pulley
- Once the belt is on all the pulleys pull the alternator away from the fan until the belt is tight. The book says that the belt should press in .2-.4 inches at the midpoint between the fan and alternator pulleys when the belt is tight enough. This is tough to measure when you can't look at the belt from a level point of view. Hold the opening of the half inch socket even with the top of the belt. When you press down on the belt, as long as it doesn't go past the bottom of the socket you should have it about right.
- Reconnect the battery and go for a test drive!
- After a day or two of driving you may have to adjust the tension.
