I've just replaced my water pump on my 986. The biggest faff I had was putting the new pump in place without the gasket dropping off or not lining up. After losing my temper and knuckle skin I had a brainwave (for me it's a brainwave). I cut the heads off two longer M6 bolts to give a long studs. Screw these in two of the top holes on the engine, hang the gasket and then offer up the pump, fix a couple of the normal bolts in to tighten up the pump, replace studs with bolts, happy days. Then think to myself "why didn't I think of that an hour ago? Why didn't I take pictures? I removed the driver seat as I carry a few extra pounds and my body doesn't bend like it used to. Wear a head torch.