Locking cams for tensioner replacement.

[Steve Tinker]

Thanks or the heads up Heiko... I'm assuming to are referring to BoxsterSteve re loaning the cam lock tools - I'm a long, long way from ON!
A couple of quick questions for you or the gurus:

1) Any pics of which one is the IMS tensioner?

2) If I wanted to replace all 3 chain tensioners, can I still just lock the crank pulley @ TDC?

3) Do you need to drain the oil before starting?

Thanks everyone