yes sorry not updated that hole is a hydrolic piston you have to push it down and lock it out its not got an oil feed its independent so it isnt that by the lucks of it its the frount crank seal as ive striped everything down and there isnt anything else it could be so it must be the same for you mate unless its leaking from uptop in that case it will be the cam seals but most defo think its crankseal cheap to fix but time consumeing plus a pain trying to get hold of the locking tool so im currently waiting on the parts so my cars laid up still lol what a pain but most of my frount end parts are hear so will be putting them back in place of my old ones also if yours is doing what mine was i highley reckomened cleaning and replaceing the crankcase filter and hoses as there more than likely causeing a restriction causeing seals to blow do this first as you might find this eases the leak enuff for you to hold back on ripping your frount end apart again as we all know its a killer lol