Slow wipers.

Discussion in 'Mech Tech' started by earlylatebay, Apr 1, 2024.

  1. My wipers are running really slow for the first minute or so and then faster.

    any tips on how to fix? Can you still get new carbon bushes?
     
  2. Moons

    Moons Supporter

    Why do you suspect its the motor - and why would new carbon bushes fix it?

    If it is the motor, might it be overcoming some form of friction caused by old grease etc in the linkage or take advantage of bearing surfaces expanding through heat to speed up?
     
    earlylatebay likes this.
  3. Fold them off the screen
    Good spray of a lubricant of your choice on spindles
    Set them in motion
    That's what I do from time to time :)
     
    Soggz, earlylatebay and Moons like this.
  4. ...or take the whole mechanism out (not too difficult), unclip the wiper arm shafts and give them a good clean/lube. If they seize completely, you'll strip the the nylon cog in the motor. Unlikely to be the motor itself.

    Or...do a full service and stick a Mk 4 Golf motor in.
     
    Meltman, scrooge95, Poptop2 and 3 others like this.
  5. Rich83

    Rich83 Supporter

    Just had exactly this last week, amazed the motor didn't burn out or at least blow the fuse. I just used some scotch pad to clean them up.

    PXL_20240329_180046873.jpg

    PXL_20240329_184520367.jpg

    Grease had seen better days so refreshed it all and cleaned the motor up.
     

    Attached Files:

  6. I have doused them in WD40. Will leave them overnight. They do seem to be running more freely already.
    Cheers guys
     
    Moons likes this.
  7. I know this is a kind of "what oil" question but, any particular grease?
     
  8. You were lucky. Usually the big nylon cog strips off the wiper mech shaft. Your motor runs...but your wipers don't. Prob the most common failure.
     
    rob.e and Moons like this.
  9. Anything.
     
    Zed and earlylatebay like this.
  10. Zed

    Zed Gradually getting grumpier

    When they slow down again in a few weeks time you'll realise it's do it properly then never again or lubricate them every few weeks. You'll crack eventually. I did!
     
    earlylatebay, matty and snotty like this.
  11. Indeed. Do it properly...once.
     
  12. I have a spare wiper motor assembly in the garage. I am going to completely rebuild it and then do a swap. I knew it would come in one day.
     
  13. mikedjames

    mikedjames Supporter

    A silicone grease that is meant to be used with nylon. IE NOT standard engine lithium grease, as nylon absorbs hydrocarbons, swells up and cracks.
    And NOT WD40 on the nylon either for the same reason, as thats basically white spirit with a few additions, rubbish at lubrication, good at dissolving dried up grease and spreading it (making you think its lubricated) . Fairly good at keeping water off briefly.
     
    earlylatebay, Moons and ginger ninja like this.
  14. My old motor was lubed with standard grease from the factory.
     
  15. Soggz

    Soggz Supporter

    Service it.:thumbsup:
     
    earlylatebay likes this.
  16. mikedjames

    mikedjames Supporter

    And that was the correct white coloured (now brown oxidised) grease for nylon.
     
    earlylatebay likes this.

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