Optima V6-2.7L VIN 4 (2007)
b. Use a torque wrench by all means.
9. Install the timing belt lower cover.
Tightening torque: 9.8 - 11.8Nm (1.0 - 1.2kgf.m, 7.8 - 8.7lb-ft)
NOTE:
Align the holes of the bolts by pushing the left timing belt lower cover to left a little bit.
10. Install the crankshaft damper pulley(A).
Tightening torque: 166.7 - 176.5Nm (17.0 - 18.0kgf.m, 123.0 - 130.2lb-ft)
11. Install the engine mounting bracket(A).
Tightening torque: 63.7 - 83.4Nm (6.5 - 8.5kgf.m, 47.0 - 61.5lb-ft)
12. Install the timing belt upper cover(A).
Tightening torque: 9.8 - 11.8Nm (1.0 - 1.2kgf.m, 7.2 - 8.7lb-ft)
13. Install the drive belt tensioner(C).
Tightening torque: 34.3 - 53.9Nm (3.5 - 5.5kgf.m, 25.3 - 39.8lb-ft)
14. Install the drive belt idler and the drive belt(A).