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Stripped oil drain sump bolt - repair options?

Discussion in 'A3/S3 Forum (8L Chassis)' started by Scullies, Aug 27, 2013.

  1. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    So I have been battling along with a stripped oil drain bolt and been thinking about repair options.

    Option 1 - weld a npt fitting into the sump then use a Allen head npt plug to seal it off.
    Option 2 - weld a AN O-ring fitting into the sump and use a AN O-ring bolt to seal it off.

    Anyone tried one of these ideas with a positive result?
    #1
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  3. shariain
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    shariain Well-Known Member

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    [Aug 27, 2013]
    Would it not be easier to source a 2nd hand sump via eBay.
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  4. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    But it's only going to suffer the same fate at the hands of ritard mechanics that change oil. Looking for a ritard proof system :)
    #3
  5. Andrew@A.L.D
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    Andrew@A.L.D Cylinder Head Master

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    [Aug 27, 2013]
    The problem with are sumps is the drain plug is 17mm or is it 19mm and as you said retarded mechanics get giddy with the air ratchets when doing them up

    Weld in a bung and re-tap it for a smaller thread and bolt size?
    #4
  6. shariain
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    shariain Well-Known Member

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    [Aug 27, 2013]
    Well if you are letting retard mechanics fix your car find another garage.
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  7. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    The idea was to drill out the damaged thread, fit a flanged bung into the hole and weld the flange on the outside of the sump.
    Not sure if NPT is the way to go or if O-ring is better
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  8. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    as far as I am concerned they are all retards that don't care about your car. I only let them do the oil changes, the rest I do myself.
    #7
  9. S321BAM
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    S321BAM I lost the rod lottery

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    [Aug 27, 2013]
    Could repair it with a heli coil? Would of thought they done them that size. Heli coils are basically springs, you tap the thread bigger for the outside of the coil and the inside coil becomes the new thread for your plug
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  10. superkarl
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    superkarl MAN OF STEEL

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    [Aug 27, 2013]
    I thpught the title meant turbo oil drain. Ive got an an10 boss welded on for that.

    Maybe do the same for the sump plug
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  11. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    Just worried a male AN fitting with a cap on the end will stick out too far and get damaged or knocked off by a speed hump.
    #10
  12. sportquattro
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    sportquattro Active Member

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    [Aug 27, 2013]
    Wouldn't it be much easier to just find a new/used sump and change it and then find a competent mechanic to maintain it and not bugger up the threads again.
    #11
  13. Scullies
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    Scullies Well-Known Member

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    [Aug 27, 2013]
    In Dubai the garages hire cheap labour to do the dirty work, now these people couldn't give a f#*k, they just do their time for their money.
    You will never find a garage here where the owner actually works on cars, they all think they are fat cats and sit in the office shouting orders, while they charge you premium rates and pay minimum wage.
    Even the dealers are a joke, when I go looking for parts,I have to show the sales guy how to use the parts catalogue! I refer to them as new parts fitters, they just fit new parts till the problem is solved.
    #12
  14. audiholic ste
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    audiholic ste Member

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    [Aug 28, 2013]
    As someone said above fill the hole up with weld and rethread with a tap the same size as the sump plug .
    #13
  15. Sam_
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    Sam_ Down under

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    [Aug 28, 2013]
    Change the oil yourself you lazy git :)

    I had similar (ECS magnetic sump plugs are ****e) and fitted a new sump and stuck to OEM sump plugs. Alternatively ECS sell the little "taps". I had one but it stuck out a bit...
    #14

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