Tools Required

Notice: Refer to Fastener Notice in the Preface section.





Important: 

•

Note the position of the crankshaft balancer before removal. The balancer does not use a key or keyway for positioning. Mark or scribe the end of the crankshaft and the balancer before removal. The crankshaft balancer must be installed to the original position. If replacing the crankshaft balancer, note the location of any existing balance weights, if applicable. Install new balance weights into the new crankshaft balancer, if applicable. Crankshaft balance weights must be installed into the new balancer in the same location as the old balancer. A properly installed balance weight will be either flush or below flush with the face of the balancer. Refer to Engine Balancing and Crankshaft Balancer Cleaning and Inspection .

•	The crankshaft balancer installation and bolt tightening involves a 4 step tightening process. The first pass ensures that the balancer is installed completely onto the crankshaft. The second, third and fourth passes tighten the NEW bolt to the proper torque.

•	The used crankshaft balancer bolt is used only during the first pass of the balancer installation procedure. Install a NEW crankshaft balancer bolt and tighten as described in the second, third and fourth passes of the balancer bolt tightening procedure.

1. Install the J 42386-A and bolts.

Use 1 M10 - 1.5 x 120 mm and 1 M10 - 1.5 x 45 mm bolt for proper tool operation.

Tighten
Tighten the J 42386-A bolts to 50 N·m (37 lb ft).




2. Using the old balancer as a reference, mark or scribe the new balancer in the same location, if applicable. Refer to Crankshaft Balancer Cleaning and Inspection .
3. Install balance weights into the new balancer, if applicable.



4. Install the crankshaft balancer washer (1) onto the crankshaft balancer.




Important: The balancer should be positioned onto the end of the crankshaft as straight as possible prior to tool installation.

5. Position the balancer (138) onto the end of the crankshaft.



6. Use the J 41665  (2) and the EN-47812  (1) in order to install the balancer.

6.1.	Assemble the EN-47812  (1), nut, washer and the J 41665  (2).

Insert the smaller end of the J 41665  (2) into the front of the balancer.

6.2.	Use a wrench and hold the hex end of the EN-47812  (1).

6.3.	Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto the crankshaft.

6.4.	Remove the J 41665  (2) and reverse the installation tool.

Position the larger end of the J 41665  (2) against the front of the balancer.

6.5.	Use a wrench and hold the end of the EN-47812  (1).

6.6.	Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.

6.7.	Remove the balancer installation tools.




7. Install the used crankshaft balancer bolt (139).

Tighten
Tighten the crankshaft balancer bolt to 330 N·m (240 lb ft).

8. Remove the used crankshaft balancer bolt.




Important: The nose of the crankshaft should be recessed 2.4-4.48 mm (0.094-0.176 in) into the balancer bore.

9. Measure for a correctly installed balancer.

If the balancer is not installed to the proper dimensions, install the EN-47812 and the J 41665 and repeat the installation procedure.




10. Install the NEW crankshaft balancer bolt (139).

Tighten

1. Tighten the crankshaft balancer bolt a first pass to 50 N·m (37 lb ft).
2. Tighten the crankshaft balancer bolt a second pass to 230 degrees using the J 45059 .
11. Remove the J 42386-A .