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[Richard A]

  Oil change time, sump plug just goes round, thread on either the sump or plug has worn out, any help.
regards
richard

[Craig_R]

james is your man on this he loves stripping threads off sumps, i think he got one helicoiled and it was perfectly fine.

[Andy B]

Oil change time, sump plug just goes round, thread on either the sump or plug has worn out, any help.
regards
richard

If the sump plug thread is kf***ed I'd more than likely replace the complete steel lower sump pan, assuming of course that your car is like mine & has a 2 part sump ie main ally casting fastened to the block with a steel pan attached to that. £30/40 would get you a new pan without the fannying around trying to re-thread the original.

[Elite Pete]

If your lucky it will be the sump plug that has lost its threads. If you can get a thin screwdriver or knife between the plug and sump and put a bit of force on it while turning the plug it might catch. I was lucky with mine and just bought a new sump plug

[Andy B]

If your lucky it will be the sump plug that has lost its threads. If you can get a thin screwdriver or knife between the plug and sump and put a bit of force on it while turning the plug it might catch. I was lucky with mine and just bought a new sump plug

You must've been very lucky considering the plug is steel and the lower sump pan has an ally insert in it for the female thread.

[Elite Pete]

If your lucky it will be the sump plug that has lost its threads. If you can get a thin screwdriver or knife between the plug and sump and put a bit of force on it while turning the plug it might catch. I was lucky with mine and just bought a new sump plug

You must've been very lucky considering the plug is steel and the lower sump pan has an ally insert in it for the female thread.

I knew I was in for trouble when I jacked it up and saw PTFE tape sticking out between the sump and plug

[Richard A]

Used a thin screwdriver and yes the plug did drop a little, but the thread did not catch and is now leaking oil  , what to do next ?

[GastronomicKleptomaniac]

Used a thin screwdriver and yes the plug did drop a little, but the thread did not catch and is now leaking oil  , what to do next ?

Hammer.

 Um, Having not been under my Omega yet, I can't be specific... but they way I did a Hyundai Coupe (a customers, not mine... ugh) sump was to punch a hole in it (not to go too far through, of course... little by little til it punctured) to drain the oil out... didn't matter that it was damaged, since it was being replaced. Then to get the new part, new gasket, remove old sump, fit new one, new sump plug and plug washer... job done.

HTH

[ians]

Used a thin screwdriver and yes the plug did drop a little, but the thread did not catch and is now leaking oil  , what to do next ?

try a thicker scredriver (several of them spaced around the plug with some downwards leverage) - its worth persisting.  I seem to remember someone on here was on the verge of punching holes in the sump but finally got the plug out using this method and discovered it was the plug that was the problem.

[JamesV6CDX]

I had the same problem, basically all the thread from inside the sump creates a lip on the bolt, preventing it from coming out past the sump.

The sump is a peice of cake to change on these, I personally would just be changing the lower pan.

Remember, on the later omega's, with rubber washer, sump plug is only 10nm...

[Chopsdad]

Used a thin screwdriver and yes the plug did drop a little, but the thread did not catch and is now leaking oil  , what to do next ?

Ignore Elite Pete  

[Richard A]

Thanks everone, however if I can get it out is there a temporary fix ?
regards
richard

[Andy B]

Thanks everone, however if I can get it out is there a temporary fix ?
regards
richard

         

[MartinP]

Thanks everone, however if I can get it out is there a temporary fix ?
regards
richard

I'm only up the road from you and I have a spare sump. PM a contact number and we'll get together.

Do you have ramps and axle stands?

[Baz006]

It's the undercut on the plug thread that will cause you grief trying to remove it. The obvious place for the thread to get mullered is at the bottom near this undercut i.e overtightening ect. It will therefore not 'catch' the thread in the hole so you can undo it. Brute force and ignorance if you are going to change the sump anyway  . Try fabricating a thin wedge with a suitable 'vee' in the end that you can drive under the head of the bolt whilst undoing it. Once it bites you may be lucky enough to remove it and fit a helicoil if its not too bad. Good luck mate.....