DD298x Hercules rocker arms

AndrewJ

Member
So I have a dd298 Hercules in a 570 Cockshutt .. noticing when assembling it the oil holes in the rocker arms never line up with the holes drilled in the rocker shaft.. the bushings aren t groves to make them ever line up either .. and upon running it I don t seem to be getting oil past the shaft to the arms but I have oil psi to the shaft.. around 45 psi. You can only bolt the rocker shaft on one way.
Does anyone have a Hercules parts manual that shows how this should be?? The Cockshutt one doesn t get detailed enough to see how things line up.
 

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