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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

    Scullies Well-Known Member

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    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?
     
    Beany113 likes this.
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  3. shariain

    shariain Well-Known Member

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    Would it not be easier to source a 2nd hand sump via eBay.
     
  4. Scullies

    Scullies Well-Known Member

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    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 :)
     
  5. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp S3.

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    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?
     
  6. shariain

    shariain Well-Known Member

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    Well if you are letting retard mechanics fix your car find another garage.
     
  7. Scullies

    Scullies Well-Known Member

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    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
     
  8. Scullies

    Scullies Well-Known Member

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    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.
     
  9. S321BAM

    S321BAM I lost the rod lottery

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    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
     
  10. superkarl

    superkarl MAN OF STEEL

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    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
     
  11. Scullies

    Scullies Well-Known Member

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    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.
     
  12. sportquattro

    sportquattro Active Member

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    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.
     
  13. Scullies

    Scullies Well-Known Member

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    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.
     
  14. audiholic ste

    audiholic ste Member

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    As someone said above fill the hole up with weld and rethread with a tap the same size as the sump plug .
     
  15. Sam_

    Sam_ Down under

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    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...
     

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