NO START

I on road driving, and I am climbing a huge hill. Suddenly, the engine sound changes and I off the engine. The engine is hot so I left the car the and I went home. The next day, I went to open engines oil pan and seen that the crankshaft bearing number six(6) has burnt. So I gentlely remove the crank shaft and replace the bearing. I have fixed everything correctly including the timing belt. When I finished, I start the car and No start, but when I start the engine, spark comes when I test. Petrol is full thank, fuel pump is working. Any help to this problem, I will be glad. THANKS!