spark plug cleaner...?

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  1. pishta

    pishta I know I'm right....

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    Do these really work? I dont see how they would not make a spark plug like new as long as you regap it. I know its uber scrooge like to clean spark plugs but it just seems that a spark plug only gets dirty, knowing a little about the conductive property of metal. If the electrode is not melted off or eaten up, it should bring them back to life right? Talking copper here, not IR or platinum stuff. Looks like an abrasive blaster in a bag. Blast them and then hit them with air. I just spent $2.50 a plug on my truck. I can imagine doing a fleet of vans or something...$$
    [​IMG]
     
  2. straightlinespeed

    straightlinespeed Sometimes I pretend to be normal Staff Member FABO Gold Member

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    Ive cleaned small engine spark plugs with emery cloth. Sometimes it works, sometimes not... If I had the choice to buy that, I would pass.
     
  3. 1320racing

    1320racing Well-Known Member

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    Aerosol brake cleaner - gritless
     
  4. moparwedden

    moparwedden Well-Known Member

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  5. SSG_Karg

    SSG_Karg Stuck in the middle

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    My father-in-law has that exact unit. Works pretty well but like OP said, uber scrooge. Buy new plugs. All it takes is a couple little grains of grit to score a cylinder wall.:banghead:
     
  6. toolmanmike

    toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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    I've sold a few to dealers. Lots of short run times on engines can foul plugs. No reason to replace the plug when all they need is a little blasting.
     
  7. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    The heat of combustion and various conditions in the engine can actually change the ceramic. Or maybe it permanently imbends some of the "stuff" in there to the ceramic. Regardless, sometimes cleaning works, sometimes it seems to be a waste of time.
     
  8. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    Yeah I used to know an old timer who said that plugs could "die". Seems his reasoning was that they could be run overly rich for long periods and then fail to fir altogether or fire very weakly. Whether or not he was right, I don't know, but I know have run into several occasions through the years when nothing but a fresh set of plugs would work.
     
  9. DFX 340 Duster

    DFX 340 Duster FABO Gold Member FABO Gold Member

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    The spark plug cleaner works well to clean the plug. In order to make used plugs work best the center electrode should still have sharp edges. During my days of attending college, I would clean the plugs, file the center electrode so that it was flat, perpendicular to the vertical axis, and had sharp edges, then gap them. It took some time depending on the condition of the plugs.
    Ever since graduating and being employed I only clean them if they are dirty and replace them if they need to be filed.
     
  10. bOb shingler

    bOb shingler Well-Known Member

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    I've had one of those plug cleaner for going on 20+ years. they work real good but you do have to have a large sewing needle to get the few grains of grit out.
     
  11. MOPARMITCH

    MOPARMITCH Mekong Gold Member FABO Gold Member

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    Here is mine
     

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  12. fishy68

    fishy68 Tyr Fryr's Inc. FABO Gold Member

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    X2... If you've ever looked down into a plug around the insulator after you cleaned one you'll see some grit is left no matter how much you blow it out or wash it out with cleaner. Only way I've ever got it out is like Bob said with a large sewing needle
     
  13. Denvermike

    Denvermike Well-Known Member

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    Used a free standing unit on cars and airplanes from the mid 60's to the late 70's. It also had a tester as part of it. As has been said, got to clean all the grit out. Never had any trouble even with the plugs on A-26 Invaders.
     
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