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Re: 77B won't start

To: "Tom McLaughlin" <tmcl98@yahoo.com>, <mgs@autox.team.net>
Subject: Re: 77B won't start
From: "Telewest \(PH\)" <paul.hunt1@blueyonder.co.uk>
Date: Sat, 25 Oct 2003 14:49:13 +0100
For the continual clicking clamp off the rubber hose to the carb.  If that
stops it the float valve is leaking, if not then either the non-return
valves in the pump are faulty or it isn't an SU pump.

For a non-starter the first thing I do it put a timing light (12v type with
inductive pickup is best) on the coil lead and each plug lead and check for
flashing.  If you get it on the coil lead but not the plug leads the cap
and/or rotor are faulty.  Breaking down plugs can also cause non-flashing on
the plug leads, but not usually on all at the same time.  The timing light
will also allow you to check the timing is approximately right, somewhere
around 10 degrees BTDC should be enough to start.  Next I'd remove a plug or
two.  If no fuel smell there is no fuel getting through.  If wet it is
flooded, which you can usually smell when cranking except possibly outside
on a windy day.  They should smell strongly of fuel but be dry, unless you
have cranked it so much you *have* flooded it.  Note that a sticking float
valve could well cause an over-rich mixture and flooding.  Also note that a
blocked float chamber overflow pipe will prevent the float from rising and
stopping the pump, and fuel will be pumped straight up out of the jet and
into the inlet manifold, again flooding.

A faulty choke choking too much on a hot start will probably cause flooding,
but I wouldn't have thought so on a 'cold' engine unless in a hot State.

PaulH.

----- Original Message -----
From: "Tom McLaughlin" <tmcl98@yahoo.com>
To: <mgs@autox.team.net>
Sent: Friday, October 24, 2003 8:07 PM
Subject: 77B won't start


> Because of a newborn in June, I've put woefully few
> miles on my B this driving season.  Now it won't
>...




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