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Oldsguy · February 10th, 2005, 05:35 AM

The harmonic balancer is a way of externally balancing an engine. The purpose is to take the stress off the crankshaft bearings. If your harmonic balancer truly is bad you will probably get decreased engine life, possibly even pre-mature bearing failure. It would be in your best interest to find out what is causing that noise and repair it. A rattling noise under load could be something else, maybe a worn belt tensioner, in rwd cars it could be a worn tranny mount, or even an old loose exhaust hanger or worn out muffler. Good luck and hope you find the trouble and get it corrected.

February 10th, 2005, 05:35 AM	#2 (permalink)
Oldsguy Hot Rodder at heart Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 5,360	The harmonic balancer is a way of externally balancing an engine. The purpose is to take the stress off the crankshaft bearings. If your harmonic balancer truly is bad you will probably get decreased engine life, possibly even pre-mature bearing failure. It would be in your best interest to find out what is causing that noise and repair it. A rattling noise under load could be something else, maybe a worn belt tensioner, in rwd cars it could be a worn tranny mount, or even an old loose exhaust hanger or worn out muffler. Good luck and hope you find the trouble and get it corrected. __________________ Dan '77 Cutlass Supreme '46 2 door "The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.