A slightly higher view showing the path the pipe takes in the engine room. 

I fitted the hull gun to see if the pipe interferes with it, it doesn't. The elongated box that the pipe goes around is the makings of the gear shift mechanism.

I carried on making the bilge pump piping, this is kit sprue of the right diameter heat formed and shaped by hand. 

Here you can just see how the one pipe end locates under the drivers seat, the other end is located under the gearbox at the rear.  

This difficult shot shows the bends and curves that this pipe has to take.  

The first rough layout of the pipe leading under the gear box housing, there should be a T-piece junction that has to be added in here running under the clutch drum you see. It will become clearer as the work progresses.