[porsche964guy]

Hi,
I don't see that you said if it was a standard or Tip?
Leave the engine shield off. It just over heats your engine.

I've owed my '90 964 Tiptronic about 6 years and have drove it every day since and I still love to drive it. It has been lowered and on its second engine and transmission with 250K on the OD. Yes I said 250K. I bought it fairly cheep around 100K miles. Had to replace the engine because I knew was in trouble from the test drive. Watch the Temp and Oil pressure after a spirited drive. I eventually put a valve through a piston on that engine. These flat 3.6 are not cheap to come by these days. I also as far as I know the only one who lost a Tiptronic trans, around 240K. If you drive much you will wear the rear tires 4:1 compared to the front.

Things I would check at the least:

Front Oil cooler Blower motor and temp sensor.
Rear forward blower motor in engine compartment
Two footwell climate control blower motors
check for the last valve adjustment that includes new seal kit( suspicious that its leaking there)
Belt between the two distributors.
Steering rack along with the pump you know about.
Oil return line - Not the problem as earlier models but still leaks.
Engine belts and the very important fan belt detector sensor. Important warning if you ever loose a fan belt. This engine will overheat super fast with out it.
I would make sure I had a owner service manual to educate you some on this air cooled engine.

Make sure to pass a smog if in CA . If these numbers are bad check the O2 sensor or even the CAT the can be very expensive.

I'm sure there's a lot more I missed....

Your old girl will need attention at intervals. But I would't change the experience of owning one of these 911 series 964.