Thanks for the superb response!!!! It was just the kind of info I needed.

However, I do have one more question. The horsepower values you gave appear to contradict values given for specific vehicles with different engines. I am looking at a 1985 G-Wagon 300GD with a 617 and it is rated at 65KW/88Hp, a 1987 300GD with a 602D25 is rated at 62KW/84Hp. Is there anything to explain the difference?

PS. the differences in Hp between the two engines is insignificant to me but I am curious. I would think your values are more correct given that the 602 is a newer design and one would think that if the designers went through the trouble of making something new that they would get more Hp out of it.

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Greg
'73 416 UNIMOG DoKa
'85 300GD G Wagen