brettmarl
Regular Contributor
Engine is F2.5SMHB and has only seen 10-20 hrs of use. I use it to just putter from beach to our mooring ball and so mostly it is running at low RPM. It pees strong and starts and sounds normal-ish - maybe a tad rough.
Today - I ran it hard - maybe 90% throttle for a few minutes, and it started smoking (I think white smoke, but could have been blueish) - smoke seemed to be from inside the cover and idle silencer on the upper shaft. I hit the kill switch and turned off the fuel. Went to start it again and when I turned back on the fuel cock a small amount of fuel leaked out of what I assume is the carb overflow outlet - not a huge amount - maybe a tablespoon but enough to make a large sheen on the water.
After a minute - it started up again fine, and was OK on low throttle, but higher speeds gave the same result.
My first thought was the t-stat might not be opening... it looked pretty clean and I tested it - and it opened 3mm per specs in the service manual at 140F.
Oil level looks good - I haven't pulled lower off to look at impeller yet, but suspect it's fine as it's peeing so well.
It's probably still under warranty but I'm a long way from a dealer, so would prefer to self diagnose if its something simple.
Any other ideas of possible things to look for?
Today - I ran it hard - maybe 90% throttle for a few minutes, and it started smoking (I think white smoke, but could have been blueish) - smoke seemed to be from inside the cover and idle silencer on the upper shaft. I hit the kill switch and turned off the fuel. Went to start it again and when I turned back on the fuel cock a small amount of fuel leaked out of what I assume is the carb overflow outlet - not a huge amount - maybe a tablespoon but enough to make a large sheen on the water.
After a minute - it started up again fine, and was OK on low throttle, but higher speeds gave the same result.
My first thought was the t-stat might not be opening... it looked pretty clean and I tested it - and it opened 3mm per specs in the service manual at 140F.
Oil level looks good - I haven't pulled lower off to look at impeller yet, but suspect it's fine as it's peeing so well.
It's probably still under warranty but I'm a long way from a dealer, so would prefer to self diagnose if its something simple.
Any other ideas of possible things to look for?