I am repairing the 996 Targa of my old man to make it reliable again. It has been leaking coolant and oil, so I identified the main problem to be the AOS. Changing it didn't go well because a previous workshop had over torqued and stripped out one of the AOS screws
Therefore, the engine had to came out, and I am doing preventive maintenance as working on the engine while it's in the car is a PITA. I need your knowledge and expertise on what makes sense to replace and what is not necessary. The car has 130000*km (ca. 80000 miles).
Already done:
- AOS
- Two pulleys
- Oil filler neck
- belt
- rear main seal (3 years/6000km ago)
- oil pressure sensor
To do:
- Waterpump
- Thermostat
- IMS (already bought the tools and bearing)
- transmission mount
Not sure:
- timing chain guides: Reasonable or overkill?
- oil cooler: Reasonable or overkill? Original one doesnt seem to leak and looks okay. See pictures below
- shift cable: The ends are rusted, also the clip holders are broken off. Could get cheap some from a Porsche 996 Turbo. Do they also fit the naturally aspirated engine?
The engine was very oily from the outside. I know I'll never get the engine completely dry, but I'd like to at least try. Can you tell from the pictures where the leaks are coming from? I would then simply replace the relevant seals as well.
Unfortunately, many questions at once, but I simply lack expertise with these vehicles. I would be happy if someone can answer at least some questions!