Weber 40 DCOEs - Engine Cut - Will not Restart - Fuel not Getting Through

[4129R]

When you run out of carb problems to have, get suspicious of the ignition system. Particularly when it's a certain RPM that seems to cause the issue, as ignition things like to die at speed if they're worn out. Condenser (capacitor) is already mentioned, but coil, rotor, distributor cap, wires, and plugs are all worth taking a look at and swapping out if you have them on hand. And of course make sure everything is getting good power and ground.

The new distributor on order should eliminate all the 12v items ( rotor, distributor cap, points, and condenser). I put a new gold top coil in a while ago, but swapped for another coil just in case the gold top was faulty.

If the new dizzy does not cure the problem, I will swap over the high voltage items for ones on my other working Europas.

The sudden engine cut did seem like it had ran out of fuel, or the pump had stopped, but it would do similar if the 12v supply to the HT coil was faulty too.

[4129R]

….just trying to remember…will a failing condenser give those symptoms…..weak spark at low revs and cutting out at high revs. ?

Thank you for "pointing" me in the right direction.

I had actually fitted a new condenser, and new points, but it seems something there, probably the flimsy earth wire connecting the points to the coil -ve wire, was faulty.

I fitted the new distributor, and after injecting fuel into all 4 inlets with 4 x 10ml syringes, the engine burst into life, and now starts easily.

I now need to relax my diagnostic brain and get the engine running smoothly and ticking over at less than 1000 rpm, but that is for later.

At least I now have something to work with. 

[S2Zetec54]

 

[4129R]

Car started this morning easily, and engine ran perfectly for a 20 mile trip.

Thank you for your suggestion.