Loctite Threadlocker

Discussion in 'Mech Tech' started by AndyBcountry, Jul 4, 2022.

  1. Whilst down the YouTube Vw t2 rabbit hole I noticed a few using this. What’s the thoughts of the group. Do you use as standard etc? I changed the oil yesterday and a few used this on the bolts.

    Cheers


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  2. Don't, unless it's absolutely necessary. VW didn't. If you do, use the blue un-doable stuff, not the green, or you'll need an oxy torch to get it off.
     
    Coda, AndyBcountry and theBusmonkey like this.
  3. No problem. Never used it before so won’t bother. Thanks


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    snotty likes this.
  4. What "bolts" did you reckon needed thread locking?
     
    AndyBcountry likes this.
  5. Are we talking about the bolts that hold the strainer plate on? I think the issue is that some kind of sealant reduces leakage, as oil tracks down the threads. I don’t think there’s much risk of the bolts coming loose. If you have the copper washers, they are designed to crush a little and keep the oil drips in. Ideally you’ll use fresh washers each time but they can often be flatted off on fine abrasive and reused.
     
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  6. With copper washers I read you can boil them in a saucepan of water for a while, which helps keep them malleable. Haven't tried it though, wife would kill me.
     
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  7. The strainer plate studs should have acorn nuts on to prevent drippage.
     
  8. They have copper washers though I think. This is type 1 no? Well my 63 beetle did, but that’s a while back.
     
    AndyBcountry likes this.
  9. Well, the question was just in general as I haven’t used this stuff before but in the context of replacing the oil sump plate which bolts thru the oil strainer. Mine just has the 8 hex bolts - no acorns. It’s a 74 beetle 1600 twin port ( get me…. The bloke in the garage told me !!) …

    Thought I’d just ask as I’m not familiar.

    Cheers gents!!


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  10. Yes I have used new copper washers. Seem fine


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  11. mikedjames

    mikedjames Supporter

    Recycling copper washers needs a blow torch to re-anneal them.

    I use acorn nuts and M6 Dowty washers - these have mini rubber lip seals against the plate and the underside of the nuts. Used for some hydraulic connections.
    The copper washers work fine if new or re-annealed.
     
    davidoft and AndyBcountry like this.

  12. Do you mean nuts?

    As the sump plate should be studs in the engine with nuts holding it, ideally with acorn nuts but standard ones will do.
     
    AndyBcountry and Dicky like this.
  13. Now ... loctited bolts would be an interesting proposition. Make sure you use the green stuff lol!
     
    Iain McAvoy likes this.
  14. mikedjames

    mikedjames Supporter

    I once undid some of the bolts on my Peugeot, the brake calipers, done with green permanent Loctite. By the end, the bolts were smoking with the friction of being undone. Just as well I had replacement bolts as the sockets in the heads were just on the edge of giving up too..
     
    Huyrob likes this.
  15. You might to put some sealant like Curil T (not threadlock) on the strainer plate nuts. They only need to be nipped up - if you heave, you may strip the studs out of the case. They will stay put - honest ;)
     
    AndyBcountry likes this.
  16. No, I do mean nuts. I s that not normal?
     
  17. Having nuts is normal.
     
    Meltman likes this.
  18. mikedjames

    mikedjames Supporter

    Having six nuts is both normal and not normal.
     
  19. Nuts is normal, but you said hex bolts. Sounds like you’ve got what you basically should have but a change to acorn nuts might be worthwhile eventually.
     

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