IMS change for next maintenance ?

[knarf]

Hi all,

i purchased a 2001 - 986S in March 2012 with 50 000 miles. the car is clean with several options (full leather, hardtop, PSE...)



i have to think about the annual maintenance (oil change) for beginning 2013, i put 7 000 miles on the car since March 2012.

i was wondering whether i should change the ims during this annual maintenance or i can postpone it for next year (when i will change the ims, i will do also the rms and the clutch replacement)

The car is running well with no strange sound. No major oil leaks, on the oil gauge, only 1 bar has disappeared since last oil change. However, the junction between the engine and the transmission is a little bit greasy

i did some camshaft position deviation measurments with the durametric tool and here are the results:

Data taken in September 2012 (engine is running at idle)
- at startup when the engine is cold : -6,64°
- when the engine is warm : ~5,88°. the value is fluctuating by 0,15°- 0,25°





Data taken in December 2012 (engine is running at idle)
- when the engine is warm : ~5,98°. the value is fluctuating by 0,15°

i know that wide fluctuations of camshaft position deviation could indicate a coming IMS failure and i don't know if my current fluctuation could be considered as wide ?!

Thanks for your help