John,
First thing to check is if the fuel is coming out the overflow, once you get
the air cleaner(s) off. If so, the fuel needle is stuck open due to dirt or
its seat is worn out. Assuming its dirt, one method of cleaning is to remove
and plug fuel line or remove power from the pump, run the engine 'til out of
fuel, and then reconnect the fuel line or reenergize the pump. The rush of
fuel to refill the bowls usually will clear the dirt.
Mike
'79B (SU equipped)
----- Original Message -----
From: "John J. Peloquin" <peloquin@mail.ucr.edu>
To: <mgs@autox.team.net>
Sent: Tuesday, February 05, 2002 11:30 AM
Subject: Fuel leak near SU x-mac-creator="4D4F5353"
> Dear MGBers,
>
> I've tracked down the source of a fuel leak in my 1970 MGB-GT. After
> arriving at work this morning and smelling LOTs of fuel on the way
> there, I popped the hood/bonnet and had a look, expecting a leaking hose
> or something like that. What I did see was fuel dripping from the rear
> SU carb onto the heat shield, sizzling away. As I was not at my garage,
> I didn't have the tools to take off the air cleaners and get a good look
> at what was going on. Since the fuel leaks (two drops per second)
> stopped within 5 minutes or less after I shut off the engine, I'm
> assuming that whatever was in the float bowl was what was leaking out. I
> know I haven't given you all much info on this, but I suspect this or
> something similar has happened to others.
>
> Have any of you any suggestions as to what's going on and how to fix it?
> Please email me separately on this as well as posting to the group.
>
> Thanks much
>
> --
> "Never ascribe to Malice that which is explained by Ignorance"
>
> John J. Peloquin, Assistant Research Entomologist
>
http://facultydirectory.ucr.edu/cgi-bin/pub/public_individual.pl?faculty=882
>
> Department of Entomology
> University of California, Riverside. 92521
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