FWIW, in the rebuild kit I used I could not get one plastic valve to seal
until I went back to the old, metal valve.
Monte
----- Original Message -----
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
To: "Paul M." <rowman22001@yahoo.com>; <mgs@autox.team.net>
Sent: Saturday, July 10, 2004 10:56 AM
Subject: Re: SU float bowls flooding
> Either debris in the float valve or a faulty valve preventing it from
fully
> closing, or a punctured float which is full of fuel and now won't - float
> that is. The first can often be cleared by disconnecting the fuel pump
and
> running the engine till the carbs empty, then reconnecting the pump. The
> resultant rush of fuel through the now wide-open valve (normally it is
only
> open a fraction, especially when idling) often clears it. If it leaks
again
> straight away it is probably a bad valve or float. If it comes back after
a
> while and affects either carb it is probably dirty fuel. The float is
easy
> to check by removing the top cover with everything in-situ, and check it
is
> free on its hinge. Replacement of HS valves is also pretty easy, compared
> to HIFs. With a leak on a newly rebuilt unit check the float height is
> correct, I suppose it could be so bad that something is stopping it rising
> far enough to close an otherwise good valve. With the float chamber lid
> removed and inverted, insert a 1/8" diameter bar across the diameter of
the
> machined lip of the float lid, parallel to the hinge pin and under the
float
> lever. The face of the float lever should just rest on the bar when the
> float needle is held fully on its seating i.e. fully closed. If not, and
> the float lever is metal, carefully bend the lever until it just is so.
For
> all-plastic floats you may have to shim the float valve with washers to
> obtain the correct height.
>
> PaulH.
>
> ----- Original Message -----
> From: "Paul M." <rowman22001@yahoo.com>
> To: <mgs@autox.team.net>
> Sent: Saturday, July 10, 2004 4:08 PM
> Subject: SU float bowls flooding
>
>
> > ... what
> > causes this and what is the diagnosis/repair
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