Hi Russell and other viewers. I did take off the inlet tract.Its held on with 2 nuts and 6 allen headed bolts.Two of these and two further allen bolts hold on the air pump which needs to be allowed to flop out of the way. There are a couple of electrical plugs to disconnect and a vaccuum pipe too. The top end of the inlet is held on with two self tappers (?) and two flexible clips with pull out plastic retainers.There are then four rubber seals to watch out for as you pull the manifold towards you. Simply lift and prop the inlet out of the way.
Pull your uderpants over your head,put a pencil up each nostril and say wibble.