"The high pressure fuel pump o
"The high pressure fuel pump on my 2007 Yamaha F250 failed at 51 hours of operation. During the warranty replacement, the technician reported finding the fuel in the vapor separating unit blackened with very fine particles and small flake-like "shavings", possibly looking like corroded metal. I was given a sample of this fuel and poured it through a coffee filter. None of these particles passed through the coffee filter. The entire fuel system from boat tank to vapor separating unit was checked and no other trace of these black particles were found. There is a Yamaha 10-micron filter between the tank and the motor. Only "marine grade", 89-octane, E-10 fuel has been used. The fuel has been judged as clean with very little water recovered from emptying the 10-micron filter.
I have heard anecdotal accounts of similar fuel pump failures with low operating hours. However, no one to date has provided an explanation of the presence of these black particles. The motor is running once again. I want to avoid another fuel pump failure. Does anyone know what these particles may be? Could they have the cause or possibly the result of the fuel pump failure? Are there some preventative maintenance procedures that may minimize the chance of a future fuel pump failure
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"The high pressure fuel pump on my 2007 Yamaha F250 failed at 51 hours of operation. During the warranty replacement, the technician reported finding the fuel in the vapor separating unit blackened with very fine particles and small flake-like "shavings", possibly looking like corroded metal. I was given a sample of this fuel and poured it through a coffee filter. None of these particles passed through the coffee filter. The entire fuel system from boat tank to vapor separating unit was checked and no other trace of these black particles were found. There is a Yamaha 10-micron filter between the tank and the motor. Only "marine grade", 89-octane, E-10 fuel has been used. The fuel has been judged as clean with very little water recovered from emptying the 10-micron filter.
I have heard anecdotal accounts of similar fuel pump failures with low operating hours. However, no one to date has provided an explanation of the presence of these black particles. The motor is running once again. I want to avoid another fuel pump failure. Does anyone know what these particles may be? Could they have the cause or possibly the result of the fuel pump failure? Are there some preventative maintenance procedures that may minimize the chance of a future fuel pump failure