I have a 93 Corolla EE100 1.3 engine with a Aisan carb. I have spent many hours trying to work out its issue with no success.
Issue description: Fitted new plugs and when engine gets hot performance declines, idle becomes rough till it eventually stalls, , sometimes it will start again. I remove the plugs (all are black and dry looking) and clean plugs, and reinstall. noting: I can see a slight fuely liquid build up on top of piston in all chambers. Corolla starts and runs primo and drives well until its hot.
Work done: Carb cleaned and new kit fitted, new plugs, rings, valve stem seals, timing checked, drained fuel tank (just in case fuel was old), timing checked, belts replaced.
Any advice greatly appreciated