[earossi]

So, I have a few suggestions and clarifications.

First off, I am not certain that it is Torx sockets that are used on the 993. The sockets are sold as "triple square" or "cheesehead" sockets. Snap-On lists them as Triple Square. I am guessing that Torx sockets have a different number of splines than do the sockets I have suggested.

You will need the triple squares for the clutch plate assembly and the flywheel. And, from past experience, my advice is to buy the best ones you can afford. The flywheel bolts are shallow and if you round off the socket because it is soft, it may damage the bolt forcing you to have to grind it off. I have Snap-ons, and they are a nice tight fit in the bolts.

At 60k miles, it sounds like you have a number of weepers and or leaks, so pulling the engine is really the easiest way to change out all the gaskets.

I will disagree with the prior poster on the plastic valve covers. Actually, the fact that they are plastic assures that they will warp. But, again, since they are plastic, they will flatten out when bolted up to the heads. They were designed that way. Conversely, if you go back with aluminum covers, they are flat going on, but with age and temperature cycling of the engine, they will warp and probably leak sooner than the plastic ones. Porsche did not fit plastic covers to shave cost out of the motor.......there was a more specific reason. For me, the only logic to replacing plastic with alumuminum covers is for "look" of the metal covers.

To replace the RMS, you will need to pull the flywheel. If the car is original, that flywheel is the dual mass flywheel, which at 60k miles is close to retirement age. One of the nicest performance upgrades for the 993 is to go back in with a lightweight flywheel and the RS clutch package. You will find that the motor will rev faster and you will never have to worry about the degradation of the rubber center core of the flywheel since the LWF eliminates that item. The only downside to the LWF is that you will get more transmission of transmission noise into the cabin. I don't believe I've ever heard anyone say that the added noise is objectionable, but you will hear a little more noise. Our host has the clutch and flywheel kit as a package for about $2k.

Other than the triplesquare sockets mentioned above, you will not need any additional Porsche specific tools. Replacing the RMS is straight forward and you can find some really nice writeups using the Search function either on this or the Rennlist BBS.

While the motor is out, I would agree that you should replace spark plug wires. Doing it with the motor in the car is a horrendous task (ask me why I know).

In addition to replacing the wires with the motor out, replace all the cover gasketing that has the slightest weep present.

Replace the Power Steering belt (about $25). And, replace the SAI check valve ($65 from our host).

Last, inspect the crank seal on the front of the crankshaft. If it is leaking or weeping, this would be the time to replace it as well. You will have to remove the engine carrier, the A/C bracket, and the pullies. A lot of work, but this work cannot be done with the motor installed.