940 L4-2320cc 2.3L DOHC VIN 89 B234F FI (1991)
Position gauge in measuring zone.
Insert screwdriver between tensioner pulley and spring carrier pin.
If belt tension is too low:
Move roller to adjust belt tension to 6.0 ± 0.2 units.
If belt tension is too high:
Adjust to obtain reading of 5.0 ± 0.2 units.
Tighten tensioner locknut.
Turn crankshaft clockwise
Turn crankshaft to rotate camshaft pulleys through one revolution.
Belt tension should now agree with specified value of 5.5 ± 0.2 units.
