BSM (Balance Shaft Module) Chain System
WARNING: This page is about a different variant/trim than selected.
- 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.
- Insert a stopper pin (A) on the BSM to hold the sprocket at the reference position with the timing mark (B) aligned with the timing notch (C).
Information
New BSM has already been installed with a stopper pin at the reference position.
- Install the BSM (Balance Shaft Module).
- Tighten the bolts with seating torque 29.4 N.m (3.0 kgf.m, 21.7 lb-ft) and then loosen the bolts.
- Using the SST (Torque Angle Adapter, 09221-4A000), tighten the bolts with specified tightening torque and angle.
Tightening torque
Bolts (A) (M9 x 181.5): 22.6 ~ 26.5 N.m (2.3 ~ 2.7 kgf.m, 16.6 ~ 19.5 lb-ft) + 88° ~ 92°
Bolts (B) (M9 x 100): 22.6 ~ 26.5 N.m (2.3 ~ 2.7 kgf.m, 16.6 ~ 19.5 lb-ft) + 43° ~ 47°
NOTE: Do not reuse the BSM bolts.
- Install the balance shaft chain (E).NOTE: The timing marks of BSM sprocket and crankshaft sprocket should be matched with the timing marks (color link) of balance shaft chain.
- 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)
- 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)
- Install the balance shaft chain 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)
- Remove the stopper pin (A) of balance shaft module.
- After rotating crankshaft 2 revolutions in regular direction (clockwise viewed from front), confirm that the timing mark and notch are aligned at the reference position.
- Install the other parts in the reverse order of removal.