You can't even spell simple English words correctly. Let alone the timing belt of your car.How do i change the timming belt on a 91 fored ranger?I am assuming that your Ranger has the 2.3 4 cyl. engine in it, correct?
You will need to remove the crankshaft pulley in order to remove the belt cover.
Best thing to do is to buy a repair manual for this truck, and to follow the timing belt replacement procedure EXACTLY as the book describes.
I believe that the 2.3 is a non-interference design engine, meaning you may of not bent any intake/exhaust valves, Good Luck