Hi guys, can anyone tell me what the vertical pipe is, that can be seen down between the 3rd and 4th inlet manifold branch.', looking from the front of the engine. Also, has anyone had problems with aluminium expansion tanks leaking? I can see traces of steam coming from underneath my tank. I have only recently bought the car, and think that the tank is a Bailey item. If it is failing, I t would be useful to know whether another ali tank or the original Ford item would be the best bet. Regards John .