Join Date: Apr 2015
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Re: Yanmar 2GMF Fuel Mystery
Update, Thanks to all for the great information. Some success!
Today I bypassed the tank and the Racor A120 primary and hooked up to the lift pump inlet with 4 feet of fuel hose running to a diesel container. Hand primed for 3 minutes, bleed the secondary, injection pump and cracked the injectors, engine started great! Ran for 20 minutes, I shut it down and started right up again! Everything good from the lift pump on.
So my problem is on the fuel tank, lines and primary filter side. To trouble shoot the Racor I used the 4 feet of hose and the same diesel container and hooked to the in port on the opposite side of the filter head, and closed off my tank inlet on the other side. I talked to a Racor tech in CA. I could not get fuel to the secondary with the lift pump. It maybe too much of a task for the small lift pump.
I plan to put a primer bulb on the temporary line to assist with priming the Racor and then see if the engine can pump from the container passing through to Racor.
I'm also considering adding a primer bulb close to the fuel tank when I have this sorted out. Any comments on the primer bulb idea?
Thank you all for offering advise. Sailnet folks are really great!