205 Keeps Stopping

[little-red-gem]

Hi, I have a 91 205 1.1 - 55,000 miles, Solex carb with a Mareli ignition system.

The other day when driving, the engine started dieing out followed by black smoking and back firing before starting its self again after a few seconds. It did this for 400 yards before I could pull over. I stopped and it ticked over perfectly then it stopped.
I checked every thing I could, it was a dry day so no puddles, I could see no sparks ect. Started it back up, it was fine and carried on home (40 miles).

Yesterday I went for a 10 mile drive and it was perfect. Today, went 3 miles before it started cutting out and back firing ect. I stopped, then it did, checked everything, started it back up and it stoppped again about 30 seconds later. It did this another 3 times. I then carried on the further mile to the supermarket perfectly.
However when I came to leave it started then stopped, then wouldn't start. In the end, I got it going by just waiting then I started and ran it at fast idle for 5 mins or so then it drove 4 miles back home perfectly.

The car has had new plugs, filters, dizzy cap and rotor arm, leads, carb clean and rebuild. When it stops, the fuel filter is full of fuel and I have checked the choke at it was off.

Any ideas.

[noggenfogger]

If it ticks over fine but cuts out after a few seconds at higher revs it sounds like either a fuel issue, maybe a blocked fuel filter or pickup pipe or a knackered pump. Could also be a sticky float valve. Another possability is the vacum advance but that would usually display as loss of power at the higher revs but it would not die at tickover.

If fuel is at the filter remove it and plumb the pipe straight to the pump to test. If not then the mechanical pump attached to the cam on these are unservicable and can only be changed. A way of testing if its the pump is to get a gerry can with some fuel in and attach a pipe from the carb running from it and getting an assistant to hold it high above the engine, the gravity feeds the fuel at pressure simulating a pump.

As this model has a choke make sure the choke levers on the solex carb are moving freely and that the cable is returning properly, they can stick closed on this carb causing it to run too rich but a bit of wd40 frees them up just give it a good spraying.

If its only started since servicing then check back all you have done.