You can do that on a 200 but it means takin the timing belt cover off to get at it.
not an easy way then:doh:
yu talking pump timing or camshaft timing?
still the same - need to slacken the rear bracket anorl - only needs a small amount to make a big differance, we have found that by setting to factory figure (1.54mm) works best then play with diaghram spring height followed by moving the pressure pipe from the turbo to the inlet manifold makes a large increase in low down torque and upper power