Quote:
Originally Posted by Cervan
could this simply be because of the efficient 4v per cylinder design of the 603? With more oxygen to burn there is less unburnt diesel (black smoke) That may be a large cause of it. Also inline six cylinders are naturally balanced as well, Not sure how that matters, but it helps them rev more freely.
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The 603 only has 2 valves per cylinder. The 606 has 4. I think the 603 at least the ones I've seen have less blow by then all the smoking 617 videos I've seen posted here. I have no idea if that makes a difference.
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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI
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