401C Injection pump Leaking!
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Thread: 401C Injection pump Leaking!

  1. Top | #1

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    401C Injection pump Leaking!

    Hey on the injection pump road side of the eng, is leaking or should I say driping aroung where the throttle rod hooks up.

    can this be removed without things flying all over?
    Looks like a little adjustment screw on the end,then a small housing and into the lever that the rod hooks to. this has two arms conected by a spring that moves backwards and forwards.

    tryed to snug the fittings up but pretty tight. looks as if it has a gasket problem. any helpfull advise would be great!

    Thanks!

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    Captain Hook Kennyd's Avatar
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    I would figure out who makes the pump (maybe Bosch or Stanadyne) and then consult a local diesel shop for advice.
    Kenny

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    That model Roosamaster pump requires a knowledgeable fuel inj repair person to repair that fuel leak.
    Kennyd and DRobinson like this.

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  6. Top | #4
    flyweight's Avatar
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    If you're stating it leaks from the Throttle Shaft(#14), with the pump installed on the engine, there is not enough room the completely remove the throttle shaft, to replace the felt washer(#2) and o-ring(#3).



    The photo below shows what your pump looks like inside, with the throttle housing cover removed
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  8. Top | #5

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    well I got tired of watching the drip.

    Took the darn thing apart, and found two small 0 rings that I replaced.

    seems that this was the cause. dripping has stopped.

    Thanks for your input.

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