Finaly got to the bottom of how come my header tank was emptying itself and mixing with the oil, at first I thought it was the seals. only thing I can think of is that could have caused the cover to crack is that there wasn't enough antifreeze in the system.
so has anyone got an outer cover for a 4xv R1 waterpump.

tony
Rescued attachment R1 waterpump.jpg

I've got a complete spare 4xv oil/water pump assembly, I can remove the cover for you.

You can have it for nowt Tony, u2u me your address & I will get it in the post tomorow.

[Edited on 10/5/10 by maximill666]