Rocker Arm Shaft Question

stircrazy

Lieutenant
Joined
Mar 29, 2012
Posts
29
Likes
13
Have any of you guys seen anything like this on a rocker arm shaft, or know what it is? This engine has sat for several seasons.

image.jpg
 

Sailorgp

Captain
Joined
Nov 1, 2011
Posts
503
Likes
106
Location
Great Lakes
Boat Make
Sisu 26
looks like engine sludge but it's isolated to just one rocker and the rest of the engine looks clean...did you try just wiping it off?
 


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