Timing drive mechanism — installation (Hyundai Tucson JM)

1. Align the gear groove with the key on the shaft and place the gear on the crankshaft.

2. Manually tighten the camshaft gear bolts, then tighten them with a wrench to a torque of 90-110 Nm.

3. Install the intermediate pulley (B) and tensioner pulley (A). Tighten the intermediate pulley bolt to 50-60 Nm and the tensioner pulley bolt to 35-55 Nm.

Note: The idler pulley is mounted on a cylindrical pin that is pressed into the water pump housing.

4. Align the camshaft and crankshaft gears with the timing marks so that the piston of the first cylinder is at the top dead center of the compression stroke.

5. Using a press, lightly compress the tensioner rod. Align the rod with the hole in the tensioner housing and secure this position with a pin. Release the tensioner rod. Install the tensioner and tighten the two mounting bolts to a torque of 20-27 Nm.

6. Make sure the gears are dry and free from lubricants. Install the drive belt in the following sequence:

Crankshaft gear (A) - intermediate pulley (B) - left camshaft gear (C) - water pump drive pulley (D) - right camshaft gear (E) - tensioner gear (F).

7. Remove the pin (A) from the tensioner.

8. Turn the crankshaft two turns clockwise and measure the length of the tensioner rod. It should be 7-9 mm.

9. Install the engine frame (A). Tighten the mounting bolts (B) to 60-70 Nm and the bolt (C) to 15-22 Nm.

10. Install the lower drive belt cover (A) and tighten the 4 mounting bolts (B) to 10-12 Nm.

11. Install the intermediate pulley (A).

12. Install the crankshaft pulley (A). Make sure that the pulley grooves match the projections on the crankshaft. Tighten the pulley bolt to a torque of 180-190 Nm.