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View Full Version : yanmar 2gm20 loss of rpm underway



bill nichols
06-27-2010, 08:42 AM
my yanmar will not go above 2000rpm when put into gear, with shaft disconnected it revs to 3600 and it sounds fine, and there is weepage at the shift linkage seal, the shaft turns fairly easy when disconnected from gear? any thoughts would be appreciated. last winter I disconnected shaft to change cutlass bearing but could not remove flange from shaft so I buttoned it back up and now I have this problem?