Wolf air 50

  1. jb57uk Member

    Messages:
    9
    paisley
    Hi all need some advice Ive got a wolf air apache 50 2hp 50 ltr compressor
    its about 6yrs old , When you turn power on (elec) it runs continually also
    it will only fill to about 4bar 65lbs ? I have drained tank and looked for leaks=none, It will run on until I switch off power,,,?thanks
     
  2. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Sounds like one of the valves in the pump is faulty. After you switch it off does the pressure decrease or hold? Can you hear air coming out of the inlet?
     
  3. jb57uk Member

    Messages:
    9
    paisley
    Hi Pressure holds and cannot see or hear any air leaks,
     
  4. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Is the air filter blocked? If not most likely the inlet valve not closing properly.
     
  5. jb57uk Member

    Messages:
    9
    paisley
    filter clean, what do you mean by inlet valve ?
     
  6. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    It's in the cylinder head of the pump and is sucked open when the piston moves down to let air in.
     
  7. jb57uk Member

    Messages:
    9
    paisley
    stripped head off had a look at cylinder sleeve bit scored
     
  8. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Any chance of some photos?
     
  9. jb57uk Member

    Messages:
    9
    paisley
    Of what ?
     
  10. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    The head, top of the block, valves &c &c
     
  11. jb57uk Member

    Messages:
    9
    paisley
    ok see what i can do !
     
  12. jb57uk Member

    Messages:
    9
    paisley
    ok heres photos hope this helps
     
    • Pump.jpg
    • Barrel.jpg
    • Cylinder head.jpg
    • Valve 1.jpg
    • Valve 2.jpg
    • Valve Tang .jpg
  13. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    In the bottom right is the reed bent slightly? If it doesn't close properly it will prevent a full charge of air entering the cylinder on the downward stroke, assuming it's the outlet valve.

    The bore also looks excessively scored, that could be part of the cause.
     
  14. jb57uk Member

    Messages:
    9
    paisley
    Hi yes the reed is bent , and the liner is scored, can parts be sourced for this model ?
    and is it worth it ?
     
  15. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    Don't know - doubt it.

    The whole Wolf setup is rather complicated, these people may be able to put you in touch with someone who may be able to help.

    http://www.ukhs.tv/Workshop/Air-Compressors

    You might be able to bend the reed back or even make one, nothing to loose.
     
  16. shenion

    shenion Tool Pack Rat

    Messages:
    7,588
    Location:
    Stone Mountain, GA USA
    One-piece, oiless pump/motor; not worth fixing IMO.

    You could get another direct drive pump off ebay. That is what I did.
     
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