Electric fuel pump to replace lift pump Yanmar 3GM30F

Feb 16, 2021
380
Hunter Legend 35.5 Bellingham
What is the best way to connect the pump to the secondary filter? Do I need to use metal braid reinforced high pressure fuel line with a banjo fitting to the secondary filter like what is currently downstream of the lift pump?
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,818
CAL 35 Cruiser #21 moored EVERETT WA
If I understand the sequence.

Fuel tank - Secondary filter - new electric pump - Engine pump - Engine filter (primary) - fuel lines to high-pressure pump.

Between the tank and the engine, the fuel lines are standard hoses rated for diesel fuel. You can make them fancy, but there is no need. Basic black hoses are normal. The fuel in the hoses before the engine is at low pressure.
The fuel lines from the high-pressure pump to the injectors are different. They must be able to handle the pressures of the high-pressure pump, and usually are solid metal