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dirk1978

Lupo GTI oil sump thread

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Or rather, about the thread on the oil sump plug, not a thread about GTi oil sumps 😃

Anyway, just come to change my oil and as I was undoing my sump plug, bits of the sump thread were coming off with it. Then when putting it back on, it got to tightening it and it went very loose. Undone and pretty much the whole thread has disintegrated.

Can anyone point me in the direction of where to source a sump? Or is there any way to do a magic fix (I doubt it I can't think of anything). Anyone else had this happen?

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Depends what kit you have access to and how knackered the thread is. Unless you have taps the right sizes or helicoil kit the right size it is probably just easier to source another sump. M14x1.5 it looks like.

Sump off either way to clean it and get the bits of thread out. Maybe some metal repair stuff might work, but you'd still need to drill and tap that tbh. if you have a grinder you can make a rough tap out of an old bolt the right size thread by cutting slots down the thread for chip clearance and putting a taper on the nose of it, would work fine for softer stuff. I'd probably go M16x1.5 or M18x1.5 and get a sump plug to suit.

 

 

Edited by Sausage

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I don't have access to anything 🙁

I've put some PTFE around the plug and used some instant gasket so I can at least drive it to a garage so they can retap it or whatever they do.

Sumps look really difficult to source for the AVY?

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Very expensive to replace, iirc it’s over £100 for a new one - this seems to be one of those premium gti parts

Thread my sump had been destroyed, helicoil sorted it, but it was a complete pita to take the sump off.

AVY sump has 2 bolt holes for gearbox,  seen some later small block alloy sumps that look similar, and a lot more plentiful... but wether or not they fit needs to confirmed, £20 to £30 used off eBay is worth a punt

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The sump doesn't look that difficult to get off to me? Looks like dropping the exhaust off, 2 gearbox bolts then a good number of bolts around the outside? There's maybe 2 long recessed bolts also?

Now stuck wondering whether to just take the sump off now and get it sorted somewhere or leave it on, try to seal it enough to get it somewhere and let them sort it.

https://photos.app.goo.gl/1sw9HZ2AX6Ju2ku49

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its the recessed bolts that are painful to locate and re-install, dropping the down pipe is frustrating for me as I have KAM manifold - may be easier with standard, looks like you are mising a bolt at the manifold, its already 25% done for you! - I changed the 2 gearbox bolts to studs in order to avoid dropping the manifold. all this with the silicone sealer Idividually each stage isn't that bad, but combined  its not the nicest of jobs .

How bad is the leak? 

if you opt to repair yourself with helicoil, the diameter of the drill you get in the kit is about half a mm bigger than most drill chucks, you could get a blacksmith drill bit to use with a smaller chuck.

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I've put oil back in and a guy offered to tap it for me but it seems a waste to drive it there with new oil, drain it, tap it, new oil and it may need the sump off anyway.

It isn't leaking now with oil in so I'll leave it to dry properly overnight and see what the leak is like in the morning then just book it in somewhere to helicoil it. Cheers for the help.

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Fannies.

Try taking a polo GTi avy sump off, then you're allowed to complain about it.

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032 103 601 QA £156.77 inc vat from VW. Currently on factory back order so expect at least a 10 day wait for one....

Edited by lupogtiboy
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