Windscreen wipers problem

Discussion in 'Mech Tech' started by Day, Jun 14, 2023.

  1. To explain: the stud on the starter is used as the main "junction box" for all the 12V supplies on the van, including the +ve from the battery and B+ from the alternator etc, and the +12 supply to the fusebox at the front of the van. Internally, it's connected to one contact for the starter motor. The smaller tab energises the solenoid when you stick 12V on it via the ignition switch. The solenoid shoves the starter pinion forwards into engagement with the flywheel, then hits a set of contacts that switch a biiiiiig current through to the starter motor, which then cranks the flywheel round. Easy, peasy.
     
    Day, Meltman and 77 Westy like this.
  2. Day

    Day

    Done test... Nothing.
    Tried 3times nothing, no noise sparks...

    What does that mean?
    New starter?
     
  3. Day

    Day

    Done test... Nothing. No noise, sparks.
    Done 3times....nothing.

    Does that mean ineed a new starter?
     
  4. JamesLey

    JamesLey Sponsor

    I'm not sure if you've done it already but it'd be worth sticking your multi-meter on the stud to verify it has 12v.
    So positive probe on your meter to the connection circled in red, negative probe to a good earth on the chassis.

    And then just to double check, when shorting out the connection you're just connecting the connection circled red to the connection circled green?
    Inked74f0b4b99d5cf15baeb267c09af3231d.jpg
     
    Poptop2 and paradox like this.
  5. Day

    Day

    There was voltage arriving at green circled stud.
     
  6. Day

    Day

    I tried test from red circled stud to big stud/lump on starter.
     
  7. JamesLey

    JamesLey Sponsor

    The test should be to connect the red circled stud to the green circled terminal.

    The big lump off to the right of your picture is just the body of the starter and won't do anything.
     
  8. Day

    Day

    Done that too, just now. Nothing.
     
  9. If you have no voltage on the red circled stud then it’s a fault on/in the cable from battery’s to starter
    Isn’t that the cable that melted?
     
  10. Day

    Day

    I fook off the red black cable ingreen circle tto do test(as snotty said)
     
  11. JamesLey

    JamesLey Sponsor

    Ok, and what were the results of putting your multi-meter on the red circled stud? 12v?
     
    paradox likes this.
  12. Day

    Day

    So... Voltage meter.... Positive on red stud, negative where?
     
  13. JamesLey

    JamesLey Sponsor

    See my previous comment (#64). :gnome:
     
  14. Day

    Day

    Ah yes negative to green, sorry
     
  15. JamesLey

    JamesLey Sponsor

    Nope, to quote myself:

    "I'm not sure if you've done it already but it'd be worth sticking your multi-meter on the stud to verify it has 12v.
    So positive probe on your meter to the connection circled in red, negative probe to a good earth on the chassis."
     
    paradox and snotty like this.
  16. No, -ve to chassis, as above.
     
  17. Day

    Day

    Done.. 12v at that nut.....
    What does that suggest?
     
    JamesLey likes this.
  18. Day

    Day

    So power arrives at solenoid, when i turn key power arrives at other nut but nothing happens so.... Solenoid/ starter is frazzled(explains the noise when i found fire)
     
  19. 77 Westy

    77 Westy Supporter

    The tests suggest both the solenoid and the starter motor have failed. Do the ignition and oil lights stay bright when you turn the key to the start position?
     
  20. Day

    Day

    Yes, they dim a tiny bit but always have.
     

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