| SONATA(YF) >2013 > G 2.4 GDI > Engine Mechanical System > Lubrication System > Balance Shaft & Oil Pump>Repair procedures |

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. | Remove the balance shaft chain hydraulic tensioner (B).

4. | Remove the balance shaft chain tensioner arm (C).

5. | Remove the balance shaft chain guide (D).

6. | Remove the balance shaft & oil pump module (A) and balance shaft chain (B).

Do not disassemble the balance shaft & oil pump module.

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 notches.

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

Tightening torque :
22.6 ~ 26.5 N.m (2.3 ~ 2.7 kgf.m, 16.6 ~ 19.5 lb-ft) + (103~107°)

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

(1) | Tighten the bolts in order number as shown with seating torque 26.5N.m (2.7kgf.m, 19.5lb-ft) and then loosen the bolts as reverse tightening order. (4-3-2-1).

(2) | Using the SST (09221-4A000), tighten the bolts as specified tightening order in same increments as follows.

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

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

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

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

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

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

7. | Confirm the timing marks.

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