oil sump socket

[chris31560]

hi guys, just been under car to see wot size socket I need to remove the sump plug and found it was not the 8mm socket I thought it was, the sump bolt is defo square but a tinny bit smaller than a 8mm square socket, so I was thinking 7mm but they dont seem to sell them, could it be a 5/8 or something like that I need? any help would be great...
oh and by the way I have a citoren xsara picasso 1.6 petrol 2006..

cheers..chris........

[cactikid]

it should be 8mm if square rusted,crap inside or road contact may have made it smaller.

[chris31560]

ah, I thought that might be the case as the 8mm socket I have does go in about half way then stops, so wot I will do is clean out the square best I can and lightly tap the socket the rest of the way in until it makes proper contact.

cheers bud................c

[cactikid]

yep muck can fill in the hole and an electrical screwdriver moved around inside should see crap coming out.