Running fine on driveway - cuts out when driving

[georgespie]

Right, so was having some intermittent issues with my 1983 1.9 petrol W/box T25 upon starting up, changed the manifold gasket, serviced the carb (SOLEX 34 PICT 5) and set it all up took me a while mind but got there in the end, also had an issue where it wouldn't then realised there was another adjusting screw for the hot idle so got that sorted - purrs like a kitten on the driveway cold and also up the temp now, but taking it for a spin it still managed to stall and cut out was wondering if anybody had any ideas what the cause could be? I have a new fuel pump although changed back to the old one because didn't seem to make much difference during the carb issues I had, could try changing it back to the new but worked far too long on the thing for one week!

Thanks for any help.

Cheers,
George

[phinw]

Have you checked all the vacuum hoses and the vacuum advance on the distributor? A perforated vac advance will cause it to stall when ever you slow down or stop at a junction for example.

[Mocki]

Also the vac pipe to the brake servo can cause these symptoms if it’s leaking or damage, or indeed not connected well

[Ant-t]

Have you checked that fuel is getting to the pump from the tank? Is the fuel filter ok?

[Mr Bean]

Difficult to diagnose without actually being there but don't fix/change more than one thing at a time so you don't inadvertantly slip in another fault on your way. Plus make sure to mark/count turns on any adjustments you may make. OK Granny

[Mocki]

Difficult to diagnose without actually being there but don't fix/change more than one thing at a time so you don't inadvertantly slip in another fault on your way. Plus make sure to mark/count turns on any adjustments you may make. OK Granny

Well put .
The art of fault finding diagnostics is to only do one thing at once , start at one point and work your way along