To adjust the tension of the G4GC engine drive belt, you must:
1. Remove the engine cover.
2. Remove four screws (IN) and remove the upper drive belt cover (A).
3. Set the piston of the first cylinder to the top dead center position. To do this, turn the crankshaft pulley and align the recess on the pulley with the mark «T» on the bottom drive belt cover as shown.
4. Loosen tensioner pulley bolt (A).
5. Turn the crankshaft clockwise (looking at the engine from the front) two tooth gear (180) camshaft sprockets (A).
6. Rotate the tensioner in the direction of the arrow (see picture) take the slack off the drive belt.
7. Tighten the tensioner bolt to 43-55 Nm.
8. Check the drive belt tension by applying a load of 2 kg (20 N) in the place indicated in the figure and measure the amount of deflection, which should be 4-6 mm.
9. Turn the crankshaft two turns clockwise and adjust the position of the camshaft and crankshaft sprockets according to the alignment marks.
10. Install the drive belt top cover (A) and tighten the four bolts (IN) torque 8-10 Nm.
11. Install the engine cover.