22. Harmonic Balancer

TOOL REQUIRED
^ J 41665 Harmonic Balancer and Sprocket Installer
^ J 36660 Torque Angle Meter
^ J 42386 Flex plate Holding Tool

NOTE: 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 reinstalled 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 balancer 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. The crankshaft balancer installation and bolt tightening involves a four stage tightening process. The first pass ensures that the balancer is installed completely onto the crankshaft. The second, third and fourth passes tighten the bolt to the proper torque. The used crankshaft balancer bolt will be 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. Make sure the teeth of the tool engage the engine flex plate teeth.





1. Install a flex plate holding tool and bolts. Tighten the flex plate holding tool bolts to 50 Nm (37 ft. lbs.) Using the old balancer as a reference, mark or scribe the NEW balancer in the same location (if required).





2. Install balance weights into the NEW balancer (if required).

NOTE: Align the scribe mark on the balancer with the scribe mark on the crankshaft. The balancer should be positioned onto the end of the crankshaft as straight as possible prior to tool installation.





3. Install the balancer onto the end of the crankshaft.





4. Use a harmonic balancer and sprocket installer in order to install the balancer.
a. Assemble the threaded rod, nut, washer and installer. Install the smaller end into the front of the balancer.
b. Use a wrench and hold the hex end of the threaded rod.
c. Use a second wrench and rotate the installation tool nut clockwise until the balancer is completely installed onto the crankshaft.
d. Remove the tool and reverse the installation tool. Position the larger end of the installer against the front of the balancer.
e. Use a wrench and hold the hex end of the threaded rod.
f. Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.
g. Remove the balancer installation tool.
5. Install the used crankshaft balancer bolt. Tighten the crankshaft balancer bolt to 330 Nm (240 ft. lbs.).
6. Remove the used crankshaft balancer bolt.





NOTE: The nose of the crankshaft should be recessed 2.40-4.48 mm (0.094-0.176 inch) in the balancer bore.

7. Measure for a correctly installed balancer. If the balancer is not installed to the proper dimensions, install a harmonic balancer and sprocket installer.





8. Install the NEW crankshaft balancer bolt.
a. Tighten the crankshaft balancer bolt a first pass to 50 Nm (37 ft. lbs.).
b. Tighten the crankshaft balancer bolt a second pass to 120 degrees using a torque angle meter
9. Remove the flex plate holding tool.