oil leak + mystery part- 1.8l 2017 242x

[Leendert]

Thanks for this thread. Found same part rolling around in 2017 242X Bilge.

 

[strussell]

So we have had this boat for just about 1 year. Since new, I would occasionally see a really small amount of oil in the bilge area. I asked the dealer to check it out at end of season last year and they said they did not find any cause / leak. Recently the amount of oil I am seeing has increased (especially if we have been running hard pulling a big tube etc) and I now notice it in the bilge water. I did a little exploring today and the only oily surface I could find was under the starboard engine. Is this most likely an oil pan that isn't snugged down tight? Pretty sure the oil pump and cooler were not leaking.

MYSTERY PART - Also there is a cylindrical "port?" of some sort under the starboard engine toward the outer side that is not on the port engine? I thought the engines would be identical? I wasn't able to see under there but I drew a diagram based on what I could feel. It is smaller in diameter than the oil filter and almost feels like a sleeve with a cap pressed into it. Kinda like a 2 piece filter wrench or plumbing clean out port? Can anyone tell me what this is and why it only appear on 1 engine?

View attachment 81097
View attachment 81098

I have a 2020 242X and noticed the same amount of oil today after an outing. Did you ever figure out what caused this? Also I sprayed the entire engine down with yamalube and I was curious if maybe it mixed with some bulge water and left the oily residue on the floor?

 

[Cobra Jet Steering LLC]

closely check the oil filter for leaks I had one split once and I have seen some rust and leak