Hi all

Today I did a service on my Yanmar and I have replaced the original filter element after the lift pump and I have also replaced a ancient fuel filter between the tank and lift pump with a new CAV unit

The fuel tank on mine sits behind the engine at about cylinder head height, the CAV filter sits under the engine and the original filter probably just below the tank height

I assume that if I block the outlet on the CAV filter and open the bleed screw on top the CAV filter will fill

I have to replace the flexible hose between the CAV and the lift pump so when the CAV is full and the air has bled out of it I will connect the new hose to the outlet of the CAV and hold the other end of the hose just below tank level and it should bleed the air out of the hose and fill with fuel and then I will pinch it off

If I then connect the end to the lift pump I should be able to pump fuel into the original Yanmar filter and bleed the air out of it and get the thing to start

Does anyone see any problems doing it this way because when I have replaced both of the existing filters before and tried to pull the fuel through the system with the lift pump manual lever it has taken a long time to get the fuel up

Regards Don