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-   -   OM636 question. (http://www.peachparts.com/shopforum/showthread.php?t=189277)

Towel Rail 05-25-2007 11:31 AM
OM636 question.
 
Did the OM636 use gears directly between the crank and cam, or did it use a timing chain? The MBZPonton site implies that the OM636 (as was as the 621) was gear-driven, while this post on oilburners.net suggests they were all chain-driven. Who's right?

Thanks,
Scott

brenner 06-25-2007 08:43 PM
om636/om621
 
the om 636 engine as used in the 170d/180d mb pontons is gear driven cam crank& inj.pump, it has push rods& rockers. the 0m621 used in the 190d ,180dc models is chain driven and is of overhead cam design


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