Mercury F3AZ-6316-A Harmonic Balancer Pulley

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Go ahead and remove the shroud bolts of the fan, then put it over the fan. Remove the drivebelts, fan/clutch assembly, and shroud. If you are to remember only one thing about this process, it should be the mark on the vibration damper and crankshaft pulley. Then snatch off the pulley and front crankshaft bolt. Before yanking off these four pulley bolts, mark that pulley. Next, gently pull it away using a puller to separate it from the engine access hole. Once done with lubing its hub, set up this damper on its hooked position as placed on the crankshaft by gluing together a washer and bolt. Use a hammer instead if necessary to push through. Finally, your way back around to cooling system service steps before adding enough coolant for testing any possible leakages.

The keyway in the damper must be aligned with the Woodruff key in the crankshaft nose.