Balance Shaft: Service and Repair

CRANKSHAFT FORCE BALANCER

Fig. 9 Force Balancer Tightening Sequence:

TOOL REQUIRED:
^ J 36660 Torque Angle Meter

REMOVE OR DISCONNECT
1. Oil pan.
2. Retaining Bolts.
3. Balancer assembly.

INSTALL OR CONNECT
1. Rotate the crankshaft until the Fourth counterweight from the front is EXACTLY at Bottom Dead Center (BDC).

NOTICE: When installing the balancer, the end of the housing without dowel pins must remain in contact with the block surface. If it loses contact, gear engagement may be lost and permanent damage to either the crank or balancer gears may result.

2. Balancer onto block with balance weights EXACTLY at BDC (plus or minus one half gear tooth).
3. Balancer bolts.

TIGHTEN
^ Bolts to 12 Nm (107 lb. in.) in the following sequence: 3-1-2-4.
^ Following the same sequence, tighten the short bolts to 15 Nm (11 lb. ft.) plus 75 degrees (1 flat) and the long bolts to 15 Nm (11 lb. ft.) plus 90 degrees (1 1/2 flats).

4. Rotate crankshaft at least four times and check for clearance between the 4th counterweight and balancer weights.
5. Oil pan.