Here are instructions from autozone.com: Please be sure the belt is tight on the right side with the gears aligned before releasing tensioner onto belt.
- If necessary, install the timing belt inside cover.
- Slide the timing belt guide on the crankshaft so that the concave side faces the oil pump, then install the sprocket key in the groove in the crankshaft.
- Slide the pulley onto the crankshaft, and install the center retaining bolt. Tighten the center bolt to 48-54 ft. lbs. (65-75 Nm) for 1986-88 1.3L engines, to 76-83 ft. lbs. (105-115 Nm) for 1989-95 1.3L engines, or to 58-65 ft. lbs. (80-90 Nm) for 1.6L engines. To hold the crankshaft from turning, you can use Suzuki Tool 09927-56010 (or equivalent), or a large prybar inserted in the transmission housing slot and the flywheel teeth.
- Install the timing belt camshaft sprocket, ensuring that the slot in the sprocket engages the camshaft (pulley) pin; this ensures that the sprocket is properly positioned on the end of the camshaft. Secure the camshaft with the metal rod used during removal, then tighten the sprocket bolt to 41-46 ft. lbs. (56-64 Nm).
- Assemble the timing belt tensioner plate and the tensioner, making sure that the lug of the tensioner plate engages the tensioner.
Fig. 14: Assemble the tensioner (2) and the plate (1) so that the lug (3) engages the hole (4) in the tensioner
- Install the timing belt tensioner, tensioner plate and spring on the engine. Tighten the mounting bolt and stud only finger-tight at this time. Ensure that when the tensioner is moved in a counterclockwise direction, the tensioner moves in the same direction. If the tensioner does not move, remove it and the tensioner plate to reassemble them properly.
- Loosen all rocker arm valve lash locknuts and adjusting screws. This will permit movement of the camshaft without any rocker arm associated drag, which is essential for proper timing belt tensioning. If the camshaft does not rotate freely (free of rocker arm drag), the belt will not be properly tensioned.
- Rotate the camshaft sprocket clockwise until the timing mark on the sprocket and the V mark on the timing belt inside cover are aligned.
- Using a 17mm wrench, or socket and breaker bar, on the crankshaft sprocket center bolt, turn the crankshaft clockwise until the punch mark on the sprocket is aligned with the arrow mark on the oil pump.
Fig. 15: When installing the crankshaft sprocket (pulley), ensure that the concave side of the timing belt guide is facing the engine
Fig. 16: Before installing the timing belt, position the camshaft sprocket (1) so that the timing mark on the sprocket (2) is aligned with the notch (3) on the inside timing belt cover (4)
Fig. 17: ... and ensure that the crankshaft sprocket (1) timing mark (2) is aligned with the mark on the oil pump (3)
Fig. 18: Install the timing belt on the sprockets so that there is no slack in the drive side of the belt (1), then install the tensioning assembly
Fig. 19: To properly tension the timing belt, rotate the crankshaft through two full revolutions
In this position, the No. 4 cylinder is at Top Dead Center (TDC) on the compression stroke.
- With the camshaft and crankshaft marks properly aligned, push the tensioner up with your finger and install the timing belt on the two sprockets, ensuring that the drive side of the belt is free of all slack. Release your finger from the tensioner. Be sure to install the timing belt so that the directional arrow is pointing in the appropriate direction.
- Rotate the crankshaft clockwise two full revolutions, then tighten the tensioner stud to 18-21 ft. lbs. (24-30 Nm) for 1986-88 models, or to 80-106 inch lbs. (9-12 Nm) for 1989-95 models. Then, tighten the tensioner bolt to 18-21 ft. lbs. (24-30 Nm).
- Ensure that all four timing marks are still aligned as before; if they are not, remove the timing belt, and install and tension it again.
- Install the timing belt cover and all related components.