Fuel leak from sebific ducts

Forum Forums Tractor/Dozer Engines Fuel leak from sebific ducts

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    • #30660
      toby61
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        What is involved in changing out the 3 sebific ducts?  I thought

        I bled off the fuel pressure by taking the line off the fuel filter but

        it is still leakingfrom those ducts.  Any instructions on how to change

        the ducts would be greatly appreciated.

      • #35107
        Bob Rooks
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          The two parts of the fuel system are isolated from each other. Are you replacing the secondary side lines, aka, high pressure lines? Sorry, I choose to not do Chinglish.

          wink

          Plus, I don't have a clue what engine or tractor you're talking about.

          Not all tractors or engines are the same.

          laugh

          Account deleted.

        • #35108
          toby61
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            Hi Bob, thanks for the reply.  It is a Foton 404 (490BT diesel engine)

            The parts manual calls them sebific ducts but they are an “s” shaped

            rubber fuel line that ties the injectors together?  They are dry rotted

            and cracked and fuel is leaking down the side of the engine block..  I'm trying to figure out how to release the pressure so I can change all 3 hoses.

          • #35109
            Affordable
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              If they are the S shaped hoses , those are on the return, no pressure on them

              Tommy

              Affordable Tractor Sales Co

              “Your Jinma Parts Superstore”

              http://www.affordabletractorsalesco.com

               

               

            • #35110
              Bob Rooks
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                Tommy is correct, those are the fuel leak-off lines from the injectors (on the primary fuel system side). Some engines also run the return fuel from the injection pump through these lines back to the tank, in which case you'll get a lot of fuel there.

                Tommy has your new hoses.

                laugh

                Account deleted.

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