Replace Timing Belt without Taking out Crankshaft Pulley

[vtl]

But, to torque the center nut back (180 Nm) a counter hold tool is needed.

Nope. Impact wrench alone can do that. Worked fine on two P2s.

[confused_al]

Would you give us a little more info of your "impact torqure wrench"?

[vtl]

See above: Craftsman 8 amps impact wrench, bought in Sears. It is too weak for any serious work, but enough to loose pulley nut.

[regent]

Sorry to say this but the method of 'impact torqueing' is a joke. I see it is widely employed whenever time is limited, but there are too many variables in it that will widen the uncertainty range of the final torque value way too much.
Bottom line: this 'method' defeats the purpose and should not be used