89 mustang timing trouble - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

maryanne · 10-19-2007, 14:34

I have an 89 ford mustand 4 cyl 5 speed manual tranny 2.3 liter engine the tinimg belt broke and we are trying to set the timing when we line up all the marks and release the tension pully the crank pully moves off the marker how do we prevent this from happening. Each time we think we have them set right it moves and we can not start the car am ready to burn the car.

**tbird100636** · 10-27-2007, 13:39

Quote:

Originally Posted by maryanne

I have an 89 Ford Mustang 2.3L I4 5 speed manual tranny. The timing belt broke and we are trying to set the timing. When we line up all the marks and release the tension pulley the crank pully moves off the marker. How do we prevent this from happening??? Each time we think we have them set right it moves and we can not start the car. I am ready to burn the car.

Do you have all of the spark plugs out??? You may be fighting against the compression of the engine- what I mean is you have at least 2 cylinders with closed valves and the closed space is pushing against the piston which causes the crank to move. How much off does it move??? Does it jump a tooth???