Sounds like a faulty pump - possibly the non-return valve on the output side
not closing, and the pump is finding it easier to suck fuel back from the
filter rather than from the tank. If the pump were good and the line to the
carb float chamber blocked then the line would pressurise and the pump stop,
but no fuel would get through to the engine.
PaulH.
----- Original Message -----
From: "Frank Krajewski" <frankk@intap.net>
To: "MG List" <mgs@Autox.Team.Net>
Sent: Sunday, October 03, 2004 7:00 PM
Subject: Fuel Pressure?
> My 1980 B stranded me for the first time today. I could hear the pump
working
> away and not shutting down as it should when the float bowl on the ZS
fills. I
> can see the gas spurting into the fuel filter but it is not filling the
filter
> hence no gas is reaching the carb. Can it be a faulty pump? Although I can
> hear the pump and see the gas attempting to flow thru the filter it simply
> does not. I have checked all the lines and there are no leaks anywhere
that
> would divert the gas flow. Has anyone else experienced this odd situation?
The
> gas tank is full but the pumps acts like it would if the tank were empty.
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