My Ibiza won't start either. To give the full history, it was a bit rough and the the cylinderhead gasket blew. The two items seemed unrelated; any way now the head gasket has been replaced, the car just will not start.
We have replaced the plugs, leads, distributor cap rotor arm and HT lead which gives us a nice fat spark. The engine turns over, and will start after 8 to 12 mins of trying provided I don't flatten the battery in the mean time.
Some one suggested that the cylinder head gasket migh be leaking into one or more of the cylinders and the small quantity of water prevents it starting. If I can turn the engine overlong enough, this drives out the water and then the wretched things starts.
Any clues, or suggestions

?