Oil in bilge

ggilray

New member
Joined
Aug 8, 2024
Messages
2
Fluid Motion Model
R-27 Classic
Hull Identification Number
FMLT27438111
Vessel Name
NOEL
2011 R27 yanmar 180. Oil in bilge. Thoughts or experiences?
 
2011 R27 yanmar 180. Oil in bilge. Thoughts or experiences?
How much is accumulating? From which side is it coming? Port or starboard, fore or aft? Does the leakage increase with engine running? Pictures would help.
 
2011 R27 yanmar 180. Oil in bilge. Thoughts or experiences?
I have the same issue with my 2012 yanmar 260. I fear it could be the oil filter housing gasket which is a common problem with BMW N47 and N57 engines. You can find video on how to replace the gasket and o-ring on YouTube. Doesn't appear to be a pleasant job.
 
How much is accumulating? From which side is it coming? Port or starboard, fore or aft? Does the leakage increase with engine running? Pictures would help.
I’m still diagnosing but I’m thinking while running. Cleaning bilge out today to see what happens overnight. Still in water til 5th. Judging by clean sides I’m thinking bottom but clean pan in mirror so far
 
There is no better diagnostic tool than old fashion newspaper. Put a layer under the areas you think it is leaking, and you will easily see where it is coming from, even if the paper gets wet with water, the oil will show differently.
 
If it's weeping oil forward on the starboard side, get a borescope on this oil plug...
1727463130482.png
 
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