SailNet Community - View Single Post - yanmar 2GM20F
Thread: yanmar 2GM20F
View Single Post
Old 01-17-2013
moskalm's Avatar
moskalm moskalm is offline
Join Date: Nov 2010
Location: Denver, Colorado
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
moskalm is on a distinguished road
yanmar 2GM20F

Hi folks
This morning I encountered a problem with my yanmar. After filling with oil, coolant, cleaning raw water filter and a test run last night she broke down on me just before I was to leave this morning. Symptoms:
Massive quantities of white smoke (smells like steam?)
Black soot-like slick mixed with raw water coming from exhaust (unburned fuel?)
Unprovoked revving to high RPM and (here's the odd part) the complete inability to shut down. When choke is pulled the engine just keeps running away until it apparently can't take it anymore. I fear doing more damage if I attempt to run the engine again. Mechanic coming at 8 AM tomorrow morning and mentioned worst casescenario being a rebuild. Wanted to get the thoughts of the sailing community first.
Reply With Quote Share with Facebook