Problems starting when hot

[moonraker]

Dear friends, I took my '39 Fordor for a short trip around Moscow and everything was fine until I got stuck in a traffic jam. The temp crept to ~200 degrees. Then I accidentally stalled the engine and it didn't want to start with a starter. The smell of gas was an indication of no spark. I asked bystanders to push the car and it started immediately. Can you tell me what the cause possibly be?
Thanks in advance!