Check fuel injectors. Sounds like my car - got it with 133K. It would barely hit 60. With new injectors, it does 90 with far less oil burn.

Does it smoke? Does it knock after it's warmed up? Those are both indicators. Also check throttle linkage (unrelated to injectors). Make sure you can really open it up when you're on the pedal. It's possible that the hard start is caused from myriad issues - injectors, valve adjustment, and glow plugs.

Henry C.

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1976 Mercedes-Benz 300D, Colorado Beige / Mahogany
www.hmclever.com