Hi. I've been working on my boat and haven't started the Yanmar 1gm10 in quite a while. When it was started often, it cranks right up. It has been several months and after several minutes of cranking, it won't start, and then the fuel priming bulb sprung a leak. My fuel plumbing is circa 1988, so be for I blead the lines, I'm gonna replace them all.
My fuel hose goes from the tank, below the motor level to a fuel bulb. From there it goes above injector pump level to the water separator filter. The it loops down, goes through a cutoff valve, then below the lift pump, and back up. There it is stock yanmar to the filter, then injector. The return line sags down before returning to the top of the tank, which is above the engine.
My question is that the whole system, being old, is also very messy. I read that the travel of the hoses is important to properly blead the lines...hose dips and crests need to be planned. Also, I saw a diagram that recommended a one way valve on the return line, which I don't currently have. I am going secure the lines when done. Any advice before I get started will be appreciated
jamie
My fuel hose goes from the tank, below the motor level to a fuel bulb. From there it goes above injector pump level to the water separator filter. The it loops down, goes through a cutoff valve, then below the lift pump, and back up. There it is stock yanmar to the filter, then injector. The return line sags down before returning to the top of the tank, which is above the engine.
My question is that the whole system, being old, is also very messy. I read that the travel of the hoses is important to properly blead the lines...hose dips and crests need to be planned. Also, I saw a diagram that recommended a one way valve on the return line, which I don't currently have. I am going secure the lines when done. Any advice before I get started will be appreciated
jamie