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harmonic balancer

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BobHorvath

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How can you tell if this device is bad? Can it be re-built? Someone asked if I was running one. Is that an option? Do I need an alignment tool for the timing cover install or can I use the balancer to perform the alignment?
 
Well, if it is an original damper, the rubber is probably dried and cracking. IMHO, you're on borrowed time with it. Randy and I both went with the Pro-race damper that Moss, for one, sells. It is a nice piece of machine work, but you pay for it. Another option is having it rebuilt. Check THIS old thread out for some options for rebuilding. I have no experience with them, but I trust John Loftus' judgment.
 
You can put the cover on loosely, then press the dampener all the way onto the crank snout. At this point, the cover should be centered around the dampener hub, and can be tightened to spec.

Definitely lubricate the rubber seal before installing the dampener.

If you're having your original dampener relaminated, make sure the hub surface that wears on the seal is dead-smooth. If it's not, a redi-sleeve can be easily installed to correct it. See page four (4) of the pdf linked below.

https://www.timken.com/en-us/products/seals/industrial/products/Documents/Seal%20brochure%20FINAL.pdf
 
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