Hi BBforks,

As I recall having removed Radiator, Cooling fan and bracket plus fan belt, and finally the crank shaft pulley held in place with cap head bolts one should be able to access plastic timing covers shielding the timing belt, remove the covers held in place with 6 mm bolts, 10 mm heads this should get you down to the timing belt, if the belt has broken remove the remains and check for any damage to pulleys and associated bearings and pulleys. Loosen of belt tensioner pulley.

Setting the cam shaft pulley to correct mark, on the circumference of cam pulley is a v mark may even look like A, on the cyl head face is a notch turn cam till A and notch line up,
Crank shaft gear look for key way directly above this should be timing mark, on crank case block you will be able to see notch about TDC area rotate crank shaft till gear mark and notch line up.
Fit new timing belt ensuring tensioner pulley goes to smooth side of belt adjust tensioner till belt is sufficiently tight, refit plastic covers and rebuild in reverse order, if you have not removed or altered distributor adjustment, then timing should be right and engine should start

Regards Titus