I should have added that mine ran for almost exactly the same distance (36
miles) on a summer's day and then...
Peter
On 16/07/2015 19:32, Michael Salter wrote:
> I have done the following;
>
> STEPS TAKEN TO FIND RUNNING PROBLEM
>
> This car has an original cap, original wires, original NA8 spark plugs,
> original
> black coil, original fuel pump. I am determined not to change any of these
> original parts unless I can confirm definitely that that item is the source of
> the problems?it a concours issue!!
>
> After many short trips 10 ? 15 miles etc... the engine started to run very
> badly
> after 35 odd miles of a longer test drive on a warm but not hot day after
> travelling over a few hundred meters of rough road under construction
> eventually
> stopping completely as I tried to climb a hill. Sounded to be running on 2
> cylinders at times. Backfiring through exhaust? no throttle response.
>
> Cranked but would not start..Appeared to have spark at the coil wire..
>
> Affer cooling started out again?after 20 odd miles stopped with the same
> symptoms? pulling choke seemed to make no difference.
>
> Could not hear fuel pump ticking but had fuel pressure at the front
> carb??good
> spark at coil wire?spark at plugs looked thin ?Changed the condenser and the
> rotor and it started reluctantly and ran well for about 15 miles then stopped
> again?.same symptoms?.changed rotor?ran for 2 miles same symptoms?
>
> Found ?3 cut? washers under the carb float chamber struts which I think could
> be
> sealing off the vent slots for the float chambers?
>
> Next day, today, I headed out for another extended drive and the car ran
> perfectly on a similar day for 36 miles then repeated the problem after 36
> miles
> and I just managed to nurse it home another 11 miles?.it actually died as I
> approached our driveway and I coasted in with the ignition turned off.
> Nothing
> would make it start.
>
> Tested the coil 4.6 ohms with no short to ground. Took off the float chamber
> lids and both were full to the correct level. The engine cranked but would
> just
> not start..
>
> After checking everything I could think of I believe that I have found the
> problem but I don?t have time to do another 36 mile test before loading the
> car
> to take to Enclave?
>
> What do you think I found?
>
>
> Michael..
>
> --
> /If you can't fix it with a hammer, you've got an electrical problem./
>
>
>
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--
===========================================================
Dr Peter Dzwig
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