if you look at the pump you will see a small drill hole where the shaft is this is where the oil is coming from,there is like a v shape near it, where this hole is this needs to to be filled with sillicone or this mastic what you can get from vauxhall fill the 2 open ends of the v replace pump and let it set overnight job done.what happens is if you get too much back pressure it blows this out preventing blowing seals ect. this is what vauxhall do and it sorted mine p.s dont fill all of it just the 2 open ends
jimbo, April 2008
