Do you have to remove the timer to replace the springs? Also is there a difference between the turbo and non-turbo engines?

I wonder if I can put a 300dt IP back with a rack damper bolt in to help with the 240D's shakes.

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1998 Mercedes E300TD

1983 Mercedes 240D Turbo, 131bar injectors, Cosworth intercooler and 63' Ford Falcon radiator, Ardic Parking heater, Headlight wipers, Best 38.6mpg.

1973 Saab 96 Rally Car, 1.8l V4 with all the race bits