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Is There A Magnetic Drain Plug That Fits The Dauntless?

Discussion in 'Early CJ5 and CJ6 Tech' started by maurywhurt, Feb 20, 2021.

  1. Feb 20, 2021
    maurywhurt

    maurywhurt Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Western North...
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    I've been looking for a magnetic drain plug to fit the 225, but so far haven't been able to find one. Does anyone know of one that's available?

    Short of that, does anyone happen to know the thread size for the Dauntless' drain plug?
     
  2. Feb 20, 2021
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    My '34 Flathead, I found a small cylindrical magnet and attached it to the stock plug. Works great.

    Another tweak is to just put a large magnet on the outside of the oil pan.
     
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  3. Feb 20, 2021
    Arnold Layne

    Arnold Layne Member

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    Or stick a magnet on your oil filter. You won't get to see the debris unless you open up the filter but at least the debris is captured.
     
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  4. Feb 20, 2021
    maurywhurt

    maurywhurt Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    Beach66Bum likes this.
  5. Feb 20, 2021
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I've always wondered how much material a magnet in a drain plug can actually catch. How far can it draw metallic particles that are in the oil?
     
  6. Feb 20, 2021
    boopiejones

    boopiejones I can’t drive 55

    California east bay
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    Rock auto says the 225 drain plug is 7/8-18. I did a google search and didn’t find any magnetic plugs that would fit.

    That said, the reviews for other magnetic plug sizes suggest that the magnet is not permanently affixed to the plug. So you could likely just stick a neo magnet on the end of your existing plug.

    Another option would be to drill into the end of the plug about 1/4 inch and drop a cylindrical magnet into the hole. I doubt that would ever fall out, but you could also put a dab of jb weld into the hole to make it extra secure. I’ll probably give this a shot next time I do an oil change, although my 198 uses a 1/2-20 plug for which there are magnetic options available.
     
  7. Feb 20, 2021
    SFaulken

    SFaulken Active Member 2021 Sponsor 2020 Sponsor

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    I usually just take an old speaker magnet, and stick it to the bottom of the oil pan.
     
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  8. Feb 20, 2021
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Inside or outside?
     
  9. Feb 20, 2021
    Arnold Layne

    Arnold Layne Member

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    Have seen both.........
     
  10. Feb 20, 2021
    maurywhurt

    maurywhurt Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    Thank you to everyone who responded! I just found and ordered a magnetic drain plug in 7/8-18:

    (Update Feb. 28 : 7/8"-18 is NOT the correct thread for the V6 drain plug - see post #21)
     
    Last edited: Mar 2, 2021
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  11. Feb 21, 2021
    SFaulken

    SFaulken Active Member 2021 Sponsor 2020 Sponsor

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    If I happen to have the pan off for some other reason, I'll toss it in the bottom of the sump. But more often than not, just stick it on the bottom of the pan on the outside
     
  12. Feb 21, 2021
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    magnets out of hard drive , will stick anywhere
     
  13. Feb 21, 2021
    jeep2003

    jeep2003 Well-Known Member

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    Thats exactly what i did on my mini. If you stick one on the oil pan the only way to clean it is to drop the pan. And if the magnet falls off or gets taken off for some reason you get a nice big clump of metal to suck up
     
  14. Feb 21, 2021
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
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    I thought half the point of the magnet was to be able to monitor for the engine making metal. If the magnet is on the drain pan you can't really inspect it.
     
  15. Feb 23, 2021
    Glenn

    Glenn Kinda grumpy old man Staff Member

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    Right. My biggest concern is how much draw does a magnet have. How much can it really catch? Does it give a false sense of security?
     
  16. Feb 23, 2021
    jeep2003

    jeep2003 Well-Known Member

    Upstate NY
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    The drain plugs on my porsche have magnets and they come out very fuzzy. Particularly the first time i changed the tranny fluid. But it also doesnt have a filter. Fuzz is ok as long as there is no chunks. Anything to help clean the oil is a good thing. You wouldnt want any metal going through the oil pump either
     
  17. Feb 23, 2021
    Buildflycrash

    Buildflycrash More or Less in Line. 2022 Sponsor 2020 Sponsor

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    These should work . I ordered a set, One for engine one for transmission.

    .
     
  18. Feb 23, 2021
    Keys5a

    Keys5a Sponsor

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    I have bought a few 3/16" x 3/4" neodymium cylindrical shaped magnets, then drilled the drain plug about 3/8" deep with a 3/16" bit. Glued it in with a few drops of 2-part epoxy. These are stong enough to pull any ferrous metal particles from the circulating oil, especially if near the oil pickup. I rarely see but a trace of grey sludge.
    I wouldn't bother with conventional magnets as they are not very strong.
    Magnets are much more effective in a transmission drain plug. They tend to collect much more material, and I have collected a couple large chunks of broken teeth that would have been fatal if they weren't captured and went into the mesh of other gears. Oil filters are pretty effective at catching any metal (including aluminum) circulating in the engine.
    -Donny
     
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  19. Feb 23, 2021
    52M38-73CJ5

    52M38-73CJ5 Member

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  20. Feb 23, 2021
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    This.
    Makes sense to collect what clashing gears disperse, but in a engine pan, I'd be be very upset to find more than a trace of ferrous. But a magnet is a good tool for monitoring.

    Friend of mine stuck his finger into the drain of his Mack truck engine, came out with a 3/8" nut. But the engine seemed to run perfect. Drove him crazy wondering if it was a forgotten stray, or fell off something vital. Sometimes ignorance is bliss.
     
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