So I’ve changed the exhaust manifold gaskets due to the dreaded screech noise, that problem is solved, however, on buttoning everything back up, after a few hours of driving I noticed it had blasted oil all down the back of the block, the top of the turbo under the feed pipe was wet. I thought it may not have been tight enough even though I torqued it to spec (26nm) but didn’t feel like giving it any more would have helped the situation, I used new copper washers also. Now upon removing it I noticed it looked a little sorry for itself, scrapes in the face of the banjo and washer and a chip out of the oil channel inside the banjo itself. I’m now hoping that if I replace it with a mamba oil line, it will be sorted, however, is the bottom banjo easy to remove and refit? I didn’t disturb it for the manifold job, I read that 38nm is the torque spec for this, higher than that of the turbo end which seems odd seeing as it’s going into threads on aluminium, anyone done this job before? It seems that the top fitting for the turbo on the mamba line isn’t a traditional banjo loop and bolt, rather a two part screw in that will need an open ended spanner by the looks. Any advice would be great thanks.