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Discuss Riello RDB Pump Needle (Solenoid) Valve in the Oil and Solid Fuel Forum area at UKPlumbersForums.co.uk.

  1. bedlam

    bedlam New Member

    Hi
    Can anyone tell me how much travel there should be on the "plunger" of the Valve, the one I currently have fitted seems to have virtually none, also should the plunger and stem be able to be separated for cleaning?
    Mine can't... just trying to establish if it is jammed and needs replacing, I can rotate the "plunger" with a needle through the port holes and that is about all
     
    Last edited: Jan 11, 2017
  2. Dotty

    Dotty Guest

    How are you going to set the pump up after you've finished faffing about with it?
     
  3. johnf

    johnf Active Member

    Hello Bedlam
    Can I ask what has brought you to want to start dismantling the coil stem of an oil pump?
     
  4. SimonG

    SimonG Trusted Plumber

    Eh up. They're all out tonight.
     
    • Like Like x 3
  5. Last Plumber

    Last Plumber Plumber GSR

    You are, I would guess, inexperienced with these appliances.

    These burners/Boilers can be extremely dangerous.

    Please get a qualified oil technician/Heating Engineer to reassemble it/ repair and recommission it for you.
     
  6. bedlam

    bedlam New Member

    I am trying to eliminate a "lock out", I am aware that I cannot set up Pressure, Emissions etc.
    although removal of the valve should not affect that - should it?
    I just wish to establish how much lateral movement there should be on the "plunger" is all, it rotates in the stem ok
    I am also not a numpty 30 years in power plants taught me that
     
    Last edited: Jan 11, 2017
  7. johnf

    johnf Active Member

    And let them know if its an RDB or Mectron pump they need to bring with them once you have knackered the one you have!!!!
     
  8. Last Plumber

    Last Plumber Plumber GSR

    Very high pressure fuel pump and an overall sensitive bit of kit ( The Burner).
    It's really not worth trying to DIY.
     
  9. SimonG

    SimonG Trusted Plumber

    I'd like to eliminate people who think it's OK to play with things they should not.

    Looks like we both will be disappointed.
     
  10. Dotty

    Dotty Guest

    You've knackered the oil pump for a start. Which makes me question your last sentence.
     
  11. SimonG

    SimonG Trusted Plumber

    Although on the brighter side you may just be the statistic that rubber stamps a change in the regulations.
     
    • Like Like x 2
  12. johnf

    johnf Active Member

    What has brought you to think that it has anything to do with the coil stem? Have you eliminated electrodes, transformer, leads, control box, Coil, motor, photocell, pump performance/pressure using an oil gauge. Have you checked/ replaced the oil nozzle, checked filters on the oil line, checked that sufficient oil is reaching the burner. Have you checked combustion using an analyser?
    The above are all tests that should be done before starting to dismantle the coil stem. You are not on the right path to the diagnosis of this lockout and should get someone in who knows what they are doing for both safety and financial reasons.
     
    • Like Like x 1
  13. SimonG

    SimonG Trusted Plumber

    And you can shove the private message right where the sun doesn't shine. PAL.
     
    • Like Like x 1
  14. bedlam

    bedlam New Member

    So why are spare replacement Valves on the market?
     
  15. SimonG

    SimonG Trusted Plumber

    For people who are competent to utilise.
     
    • Like Like x 3
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