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Dry Sump Tank Dry

airlato23

Member
Messages
1
Reaction score
0
Points
20
Location
Higgins Lake, Michigan
Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
23
Hi there everybody. I am new to posting in the forum, but have followed for years. We have a 2007 AR230 with the twin MR-1 High Output engines. Recently the starboard engine has developed an issue where the entire contents of the dry sump tank drain down into the crankcase. Does anybody have any info on what might cause this issue, or have a schematic of the oil system? I am hoping it might just be a gasket or check valve issue somewhere. ANY information is appreciated! I have contacted dealers throughout the midwest with no luck. Thank you!
 
Oil pump check valve? part 6 page 133 Chapter 5-29
 

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