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Riello RDB Pump Needle (Solenoid) Valve

Discuss Riello RDB Pump Needle (Solenoid) Valve at UK Plumbers Forums; 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 ...
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    Default Riello RDB Pump Needle (Solenoid) Valve

    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 by bedlam; 11-01-2017 at 09:07 PM.

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    How are you going to set the pump up after you've finished faffing about with it?
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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

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

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    Eh up. They're all out tonight.
    johnf, rpm and Best like this.
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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    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.

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    Quote Originally Posted by johnf View Post
    Hello Bedlam
    Can I ask what has brought you to want to start dismantling the coil stem of an oil pump?
    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 by bedlam; 11-01-2017 at 09:16 PM.

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    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!!!!

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    Quote Originally Posted by bedlam View Post
    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
    Very high pressure fuel pump and an overall sensitive bit of kit ( The Burner).
    It's really not worth trying to DIY.

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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    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.
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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    Quote Originally Posted by bedlam View Post
    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
    You've knackered the oil pump for a start. Which makes me question your last sentence.
    Propino Tibi Salutem! Usque ad Mortem Bibendum!

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    (By the way, I'm commercial!)


    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal
    .


    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please don't be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.


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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    Although on the brighter side you may just be the statistic that rubber stamps a change in the regulations.
    Last Plumber and johnf like this.
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    Default Re: Riello RDB Pump Needle (Solenoid) Valve

    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.
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