Its the seal on the integrated bearing that leaks oil not the o ring, my kit is available and stops the leak and the integrated bearing is rubbish. you will have to take the big clutch cover off to fit it and it comes with a seal protector that is used when you install, the Water pump seal you just fitted is ruined now by the sharp edge on the shaft you will need another new one. the kit come with instructions and pictures how to fit.
email me [email protected] or PM me on this site and you can purchase with paypal.
ive sent several kits to Iceland over the years.
You can view some info on the kit in the mechanical section of this forum, its in sticky at the top of the page.
Regards ORANGEBERG