73. Balance Shaft Installation
Balance Shaft InstallationImportant: Do not disassemble the balance shaft assemblies. Remove and install the balance shafts as complete assemblies.
1. Lubricate the balance shaft bearing journals with clean engine oil.
2. Install NEW balance shaft assemblies with the counterweight down to prevent damage to the balance shaft bearings.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install NEW left balance shaft assembly retaining bolts.
^ Tighten the NEW left balance shaft assembly retaining bolts to 12 Nm (106 inch lbs.).
4. Install the balance shaft chain guide.
5. Install the balance shaft chain guide bolts.
^ Tighten the balance shaft chain guide bolts to 10 Nm (89 inch lbs.).
Important: Rotate the right balance shaft retainer plate counter-clockwise to allow chain installation over all 3 sprockets.
6. Install the balance shaft chain onto the balancer sprockets and crankshaft sprocket.
7. Rotate the crankshaft until the left hand balance shaft sprocket timing mark is at 12:00. The right hand balance shaft sprocket timing mark should be at 2:30. The crankshaft sprocket mark should be at 4:30. Make sure the 3 timing marks on the sprockets line up with a dark link on the chain. Every 11 crankshaft rotations, 3 of the 5 dark links on the chain will line up with the timing marks.
8. Rotate the retainer plate clockwise while holding the chain onto the crankshaft sprocket.
9. Install the balance shaft chain tensioner and bolts.
^ Tighten the balance shaft chain tensioner bolts to 10 Nm (89 inch lbs.).
10. Install NEW right balance shaft assembly retaining bolts.
^ Tighten the NEW right balance shaft assembly bolts to 12 Nm (106 inch lbs.).
Important: Do not force the tensioner to the next notch by pushing up on the tensioner shoe. This will over-tension the chain and may result in a whine noise.
11. Remove the small tool from the link plate hole in order to regain chain tension.