Kia Optima: Installation - Balance Shaft & Oil Pump. Repair procedures - Lubrication System - Engine Mechanical System - Kia Optima TF 2011-2021 Service ManualKia Optima: Installation

1. The key of crankshaft should be aligned with the mating face of main bearing cap. As a result of this, the piston of No.1 cylinder is placed at the top dead center on compression stroke.
2. Confirm the balance shaft & oil pump module timing mark.

Timing marks to be visually aligned with centers of adjacent cast timing notche.

3. Install the balance shaft & oil pump module (A) with the chain (B) and the sprocket (C).

The timing marks of balance shaft & oil pump module sprocket and crankshaft sprocket should be matched with the timing marks (color link) of balance shaft chain.

Tightening order

Tightening order
(1) Tighten the bolts in order number as shown with seating torque 26.4 N.m (3.0kgf.m, 21.7 lb-ft) and then loosen the bolts as reverse tightening order. (6-5-4-3-2-1).
(2) Using the SST (09221-4A000), tighten the bolts as specified tightening order in same increments as follows.

Tightening torque :

Bolts (A) (M9x181.5) : 22.6~26.5N.m (2.3~2.7kgf.m, 16.6~19.5lb-ft) + 88~92°

Bolts (B) (M9x95) : 22.6~26.5N.m (2.3~2.7kgf.m, 16.6~19.5lb-ft) + 43~47°

4. Install the balance shaft chain guide (D).

Tightening torque :

9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)


5. Install the balance shaft chain tensioner arm (C).

Tightening torque :

9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)


6. Install the balance shaft chain hydraulic tensioner (B) then remove the stopper pin (A).

Tightening torque :

9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)


7. Confirm the timing marks.
8. Remove the stopper pin (A) of balance shaft module.

9. Install the timing chain. (Refer to Timing system in this group)

Removal
1. Remove the timing chain. (Refer to Timing system in this group) 2. Install a stopper pin (A) after compressing the balance shaft chain tensioner. 3. ...

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