Hello All,
I am taking my 997.1 TT in to have the coils and plugs changed. What else do ya'll recommend to have done while the motor is dropped? Car has 80k miles on it. Any other major service I should have done while it's in the shop? Any common failures at this mileage I can get ahead of?

 

You will get a lot of good advice, but my plans are:

1. Re-glue/Pin Coolant lines
2. R&R hoses/elbows (use Sharkwerks)
3. Inspect, R&R any vac lines, etc that might need attention

If something else comes up at that time, even if I didn't have to drop it to deal with, I would be doing that as well, including things like the clutch & clutch hydraulics.

Ed

 

Preventative water pump replacement, especially if it's the original one.

 

 

 

 

I did some more reading, mostly the same with some additions, but just to reiterate:

1. Coolant Lines pinning/re-glueing
2. Metal Elbows
3 R&R all hoses (saw someone add the expansion tank to the list
4. R&R vac lines
5. Water pump if needed
6. Clutch if needed
7. Clutch Hydraulics if needed
8. Accessory Belt if needed
9. Throttle Position Sensor if needed
10. O2 sensors if needed
11. Change out ALL fluids
12. Camshaft Pinning - controversial if needed, most recommend to not do this proactively and point to the actuators being left to slowly die being the true culprit or even dirty oil clogging the works up causing issues
13. Mods - IC's, Exhaust, headers, etc
14. Every rubber fitting/o-ring, mount etc. on the car/engine

There might be more but that list feels pretty complete. Obviously there are other sensors and electronics, but I think the focus should be on the rubber/wear items and high probability failure electronics.

Ed

 

 

The secondary electric water pump for the turbos is worth considering. Also look to check and secure the FPR line at both ends.

 

Prob don't need to mess with your AC if it isn't broken.

 

Whenever faced with boost issues on a turbo engine, I do a boost leak test as a first step.

Ed