E300D 124 fuel pump adjuster

Discussion in 'Engine' started by philiggy, Oct 3, 2008.

  1. philiggy

    philiggy Hardcore MB Enthusiast

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    There is a disc shaped chamber on top of the diesel pump, this has an adjuster with lock nut under a black plastic cover, what is this adjust.

    Does anyone know what this is for and how to adjust it ?

    Phil
     
  2. Dieselman

    Dieselman Banned

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    It's the altitude adjuster. Leave it alone.
     
  3. OP
    OP
    philiggy

    philiggy Hardcore MB Enthusiast

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    Its a bit late, the reason I ask is that the locknut was loose and it was screwed right out

    I assume if if its a an altitude it will make the mixture richer/weaker any idea on a base setting or what differenge screwing in/out would make:confused:

    Phil
     
  4. Dieselman

    Dieselman Banned

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    Can't you just screw it back in until the locknut is binding, then give it a tweak to lock it.
     
  5. OP
    OP
    philiggy

    philiggy Hardcore MB Enthusiast

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    I was going to set it midway on its travel but I wanted to know what it did and why someone had screwed it right out first,

    Phil
     

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