Noob questions about fuel lines
I am replacing my lines from the tank to the engine and just got them all removed. I have marine grade 3/16 and 5/16 line to replace it with, but I can't tell where I should use the 3/16 and where I should use the 5/16.
Is the line at the back of the engine the inlet line (3/16)? or is the line that is towards the front (the buried one behind the fuel filter the inlet? Any help would be appreciated. (I have searched) |
suply line goes to filter return line should come off injection pump
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You can use the 5/16" for supply, but I think stock is closer to 3/8"..., 3/16" for return. Both lines go to the back of the head (assuming you haven't removed the hard lines to and from the supply pump). The supply will have a 45 bend to it, iirc.
These are just illistrations from the 6BT manual, for reference... Ignore the Vice Grips...it's a supply pressure diagnosis picture... http://www.justanswer.com/uploads/In...60558_brd2.gif The hard supply line then goes down to the fuel heater bowl (assuming you still have one) http://ww2.justanswer.com/uploads/do..._lift_pump.jpg Then it goes from the supply pump up to the fuel filter and from there to the rear driver side of the injection pump... http://www.justanswer.com/uploads/In...160444_brd.gif The return come from the Overflow Valve (OFV) and goes along the block back to where the Vice Grip picture shows. http://www.justanswer.com/uploads/In...60625_brd3.gif |
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