> Subject: Time:2:36 PM
> OFFICE MEMO Jaguar XJ12 stalls after 5 miles Date:6/24/93
> Help, my Large British Cruiser is acting up. 1974 Jaguar XJ12L with 4
> Zenith-Stromberg CD175 carbs and air conditioning.
> Symptoms: starts easily from cold, runs fine as its warming up, temp needle
> gets to Normal within 2 miles, car runs til about 4 miles, begins to sputter,
> gets steadily worse for about another mile and dies, cranks but not one pop,
> driver pushes it (ugh) to a safe parking spot, goes for help, back in about
an
> hour, car starts right up and drives home. This has happened twice. Car was
> driven daily until this happened. AC was off.
> What to do? Fuel filter in the trunk is clean. Can't find any vacuum leaks.
> Fuel pumps all working, recently rebuilt. Air cleaners are clean. Carbs
> recently rebuilt with new diaphragms, carb throttle bypass valves and bimetal
> valves all replaced.
> Could it be the ignition amplifier or ballast resistor, both of which are
> original and still mounted on the engine as from the factory? Do they fail
with
> these symptoms? I have heard of people remounting the amplifier somewhere
away
> from the engine heat, but where? On the inner fender or on the rail above
the
> radiator? Could it be the coil? Anybody have any thoughts? Thanks
>
>
After the car is dead have you checked to see if there's
any gas comming into the carb? You might be running into
a vapour lock problem. (Classic symptom -- go away for
about an hour and it starts right up). Check to see if your
fuel lines are running close to anything hot, and insulate them.
Later,
Martine
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