94 Z34 summer project

So, I just bought a 94 Z34 for my daughter. It seems well taken care of, but it is 12 years old. So, I'm planning on doing the timing belt this summer, and would like to know what else I should do as preventative maintenance, while I've got everything apart. I plan on replacing the belt, tensioner pulley, idler pullies and tensioner actuator. Should I replace alternator while I'm at it, or would I still need to do this from underneath the car? Also, waterpump? Intake gasket? Anyhting else. I also heard that there is some distributor hole plug that tends to leak oil? Not sure about this one. Anyway, thanks for any input!

Chip

The intake gasket (upper and lower) is a big one. It can and will cause vacuum leaks and drivability problems. If the car has the original injectors, I would consider swapping those for injectors from a 96+ 3.4. The 91-95 injectors had a factory defect that causes phantom stalling. If you decide to swap injectors, make sure you get them from a 3.4 (we use 23.5 lb injectors and the 3.1 uses 19 lb), nor the 3400 pushrod (22.5 lb) injectors - anything smaller than stock can confuse your computer and cause the car to run lean.

While you have your lower intake off, you will see the distributor plug. When GM fitted this car with DIS, they left the distributor hole and just plugged it. It can leak oil, huge amounts. The real issue is, to change the o-ring properly, you have to remove the rear head. There is a work around for that. PM me if you want, I don't want to advertise.

The alternator really is not that bad. Just remove the right axle, and have at it. There are other ways of getting to it (drop the rear of the subframe, or move your tie rods, overkill IMHO) No, its not a 15 min. job, more like 45 min. to and hour, but there are worse things to tackle.