Just what I was thinking...the valve needs a vacuum hose to open it to let the tank
breath. One of my mates mustve
skipped the valve and connected the little hose from the crankcase straight to the
manifold... looks like I've solved the
mistery of the rough motor :)
29/05/01 1:47:32 AM, "Terry Rudd" <[EMAIL PROTECTED]> wrote:
>A 200B has ADR27 anti-pollution crap fitted which means that you have a
>sealed fuel system and the fumes are sucked into the engine to be burnt. It
>doesn't rob the engine of any performance like most other pollution devices,
>but it should be connected for the fuel system to operate as intended.
>
>To release the pressure in the tank there is a T piece which is actually a
>valve that sits on the passenger side strut tower. If this is not connected
>correctly, then the tank will pressurise to the point that the fuel pump
>can't suck fuel or worse, the filler hose can collapse to the point that it
>will split.
>
>To state the obvious there are 3 connections on the T piece and are
>sometimes labelled A (Air), F (Fuel) and C or M or V (Crankcase, Manifold or
>Vacuum). If yours isn't labelled then the hose from the tank goes onto the
>centre connection, the end with the input arrow connects to the underside of
>the air cleaner and the other end connects to a vacuum source on the inlet
>manifold or on some engines there is a fitting on the crankcase breather.
>I'm not sure exactly where the third hose goes on the 200B but it should be
>obvious.
>
>With the fuel pressure system connected it is quite normal for a small "pst"
>to be heard when you release the fuel cap depending on how much pressure is
>in the tank when you stop.
>
>regards,
>Terry
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