Hi there,
Wondering if anyone has had similar issues with their Yanmar 3YM30 stalling out? Purchased our 2004 Hunter 33 last year, and no engine issues. Boat had about half a tank of fuel when purchased. We immediately topped off tank, then again at end of season and added conditioner for winterization.
This year, seems after each day out, engine seems to stall. The rpm's drop and it either idles, or stalls. Have changed fuel filters, and fuel pump (when using the primer on the pump, no fuel was coming through filter - changed the pump and immediately solved issue). Same day after changing pump, ran the engine in gear at the dock for 20-30min, no issues. Went out for a sail, upon returning to the marina, started engine and began cruising at 2800rpm, then felt engine slowly start to randomly lose rpms. If i put it in neutral and throttle up, rpms would climb, but go down again. Didnt stall this time, but definitely seemed like a fuel supply issue.
So, seems like engine runs fine until either we hit open water and fuel gets shaken up, or after engine heats up, somehow that's affecting performance.
Any feedback would be greatly appreciated!
Thanks,
Mike
Wondering if anyone has had similar issues with their Yanmar 3YM30 stalling out? Purchased our 2004 Hunter 33 last year, and no engine issues. Boat had about half a tank of fuel when purchased. We immediately topped off tank, then again at end of season and added conditioner for winterization.
This year, seems after each day out, engine seems to stall. The rpm's drop and it either idles, or stalls. Have changed fuel filters, and fuel pump (when using the primer on the pump, no fuel was coming through filter - changed the pump and immediately solved issue). Same day after changing pump, ran the engine in gear at the dock for 20-30min, no issues. Went out for a sail, upon returning to the marina, started engine and began cruising at 2800rpm, then felt engine slowly start to randomly lose rpms. If i put it in neutral and throttle up, rpms would climb, but go down again. Didnt stall this time, but definitely seemed like a fuel supply issue.
So, seems like engine runs fine until either we hit open water and fuel gets shaken up, or after engine heats up, somehow that's affecting performance.
Any feedback would be greatly appreciated!
Thanks,
Mike