SailNet Community - View Single Post - Yanmar 2qm15 fuel problem
View Single Post
Old 04-07-2011
casey1999's Avatar
casey1999 casey1999 is offline
Senior Member
Join Date: Oct 2010
Location: HI
Posts: 3,048
Thanks: 13
Thanked 32 Times in 31 Posts
Rep Power: 5
casey1999 is on a distinguished road
Please let us know final out come. It would be interesting. If you have unburned fuel and injector spray patern is good, sounds like either worn piston seal or bad valve seal. A compression test ( or pressure drop test) should tell you if this is the problem. Sounds likely as when piston is compressing, leak by would allow unburned fuel into the exhaust. Could try adjusting valves- very basic procedure and instructions in the Yanmar operation manual.
Good luck.
Reply With Quote Share with Facebook