24 Albemarle
Seaman
- Joined
- Jul 30, 2008
- Messages
- 54
Over the last 4 months I've worked on four yamaha's 50, 60 and 70 hp all made in the last 7 or 8 years with oil saturated with gas. One fellow had gotten some E85 and it literaly disolved his fuel pump diaphram and let fuel directly into his valve cover through the fuel pump until it was ready to hydraulic itself to pieces, when I pulled his dipstick it blew oil all over me,him and the boat. Another was a stuck thermostat (stuck open) motor wouldn't heat up computer said more fuel and injectors oblidged until it bypassed rings into crankcase raising oil level to critical. Other two had injectors stuck open and sprayed continuosly until high oil level was detected.The last two motors ran well right up to the point of discovery of high oil level. We are on the east coast and are being fed a diet of 10% ethanol (so they say) and I have tried to search this forum for others with similar experiences and have not seen any... I have a hard time believing I am just the only guy to come across this as I only do 20 or 30 a year what must a dealer or big shop be experiencing? Anyone?