Murex 160 Problem

  1. GFP1 New Member

    Messages:
    3
    Location:
    UK
    I'm having problems with my Murex 160, the gas will not shut off after releasing the trigger, does anyone know if it's an easy fix or do I need a new part ? The welder doesn't get used a lot and is sitting in the garage most of the time.
    Any help is appreciated
     
  2. Richiew Tungsten Sharpener

    Messages:
    797
    Location:
    Teesside, England
    I had that problem on a Clarke 151. I don't know what your welder is like but in my case it was cube shaped brass valve in the torch handle that had got "sticky" I took the handle apart and lubricated the valve and the problem went away.
     
  3. Richiew Tungsten Sharpener

    Messages:
    797
    Location:
    Teesside, England
    clarke-gas-valve-sm.jpg

    You're probably right PDG but just in case, this is what I was on about. Just a bit of oil to free up the push switch.
    It might help someone else who comes across this thread.
     
    GFP1 likes this.
  4. GFP1 New Member

    Messages:
    3
    Location:
    UK
    I think it is a sticky solenoid valve, where is this valve ?
     
  5. Shoggi

    Shoggi Member

    Messages:
    201
    Location:
    Bradford west yorkshire
    I have this problem with my old sip migrate
    I will give this a try saves buying New parts
    If not needed
     
  6. GFP1 New Member

    Messages:
    3
    Location:
    UK
    Cheers Lads, much appreciated, I will give it a go today and let you know how it goes
     
  7. Shoggi

    Shoggi Member

    Messages:
    201
    Location:
    Bradford west yorkshire
    It's old sip 100 grey / red case it's not a bad little welder I honestly prefer it to my new
    Clarke 151 but sometimes as with anything old it decides it can't be arsed
     
  8. rtbcomp

    rtbcomp Moderator Staff Member

    Messages:
    18,615
    Location:
    Sheffield UK
    If it has a solenoid valve put a voltmeter across the valve coil, if the voltage drops to zero after releasing the trigger but gas continues to flow the valve is at fault, otherwise it's in the electrics.

    You'll need to establish the voltage on the coil, could be AC or DC, there should be a label on the coil.
     
  9. mike 109444

    mike 109444 Member

    Messages:
    4,175
    uk Bristol
    You should be able to strip the gas valve and if it is not sealing try cleaning the rubber tip and where it seats in the block.
    Take care not to loose the spring !
     
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    Shoggi likes this.
  10. Appyasme1

    Appyasme1 Member

    Messages:
    1,389
    Location:
    Lancashire
    Could be a piece of grit preventing the plunger from "bottoming out"
     
    Shoggi likes this.
  11. Appyasme1

    Appyasme1 Member

    Messages:
    1,389
    Location:
    Lancashire
    Sometimes the spring that 109444 is talking about becomes permanentley compressed,this could cause the plunger not to seat properly.
     
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