Grey cells fading

Discussion in 'Mech Tech' started by DubCat, Apr 22, 2020.

  1. Chewing gum?
     
  2. Zed

    Zed Gradually getting grumpier

    Whatever is suggested someone will find a reason not to, but a thin smear of grease should stick them on. My builder tells me when he was a mech at a dealership they would run the engine with them deliberately loose to heat them up before tightening with the engine running. Hmmm.
    You know you have to anneal them first I'm sure. I don't think you can anneal them by running the engine with them loose but I bet they thought they were.
     
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  3. DubCat

    DubCat Sponsor

    I have to anneal them? How do I do that?
     
  4. Stick ‘em on a steel sheet (not the kitchen table ;)) and heat them with your propane torch until they’re cherry red. Makes ‘em nice’n’squishy.
     
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  5. Zed

    Zed Gradually getting grumpier

    I also cool them fast but I'm not sure if that's needed. Doesn't stop them going soft for sure.
     
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  6. Zed

    Zed Gradually getting grumpier

    Did mine with a pair of long nosed pliers and a torch. Doesn't the steel sheet suck the heat away?
     
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  7. Dunno. Didn’t set my Workmate alight :thumbsup:
     
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  8. DubCat

    DubCat Sponsor

    I've got some brass exhaust stud nuts - would you use copperslip on the studs chaps?
     
  9. mikedjames

    mikedjames Supporter

  10. Zed

    Zed Gradually getting grumpier

    Any old nut dry for me. :)
     
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  11. ..or a piece of wire and drop an in a cup of water..should thunk not ping when you drop them afterwards..

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  12. DubCat

    DubCat Sponsor

    Seems I've made a schoolboy error. So excited about fitting my heat exchangers I forgot to put the metal elbow pipes up through the tinware first. Somehow I've managed to winkle the one in by the alternator but the one by the oil cooler (type 4) looks impossible. I gave up. Do I have to take the hest exchanger off or can I take the tin off - probably the carb too :(
    Please tell me there's a way o_O
     
  13. Zed

    Zed Gradually getting grumpier

    There isn't a way.
     
  14. Snail fans are rubbish anyway..... cap it off on the exchanger...

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  15. DubCat

    DubCat Sponsor

    So carb and top tin easiest then :(
     
  16. DubCat

    DubCat Sponsor

    I think if you have all the tin and pipes nice and airtight (and lagged) then coupled with the main fan and a bilge type fan installed at the front, you should get decent air flow.
     
  17. Zed

    Zed Gradually getting grumpier

    I always realise as I'm putting the HX on and take it back off.
     
  18. DubCat

    DubCat Sponsor

    So I could just undo the 3 bolts to the exhaust and lower the H/Ex. Do you reckon the copper rings will be OK?
     
  19. Zed

    Zed Gradually getting grumpier

    The million dollar question. Me? I start again, it's quicker in the long run.
     
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  20. Yeah I'd rather blow another £10 on copper gaskets .. but then again ..
    [​IMG]
    I might have just said did it and capped them off.... got a cheap BT removed Eberspacher to figure out the wiring on that'll do the heating

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