Hells delight trying to seal sump plug, help needed!

[LISTEJ11]

I have been trying to stop my sump plug from leaking oil since I changed it, I have used a new round profile copper crush washer and origenly torqued the plug to 20 N/mm2, I cleaned the sump and left it a few days. I came back a few days later and there was oil on the sump plug and visable oil drips on the floor, so I torqued it to 22 N/mm2 and left it a few days. I just checked it again and still there is oil residue on the plug so I have just tightened it up to 25N/mm2 and hopefully this will sort it.

Can anyone give me any tips on how to resolve the leak? Should I use a different washer such as a flat copper washer or alluminium washer?

Thanks

 

[Brigsy]

It would be a good idea to state what car and model. Clio2 172/182 does not use a crush washer its a dowty sealing washer.

 

[LISTEJ11]

It would be a good idea to state what car and model. Clio2 172/182 does not use a crush washer its a dowty sealing washer.

I don't think it is either the 172 or 182, Its the D7F 6 726 8 valve engine.

 

[LISTEJ11]

I don't think it is either the 172 or 182, Its the D7F 6 726 8 valve engine1.2 clio 2008

Its the 1.2 model 2008