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So I am looking at installation of many harmonic balancers and noticed the Klowny video on YouTube. He used this “Friction Washer” at the end of the Harmonic balancer.
my question is if I need this washer at all for the install as I have noticed I cannot find the same washer besides that one I have posted.
Those came out in approx 2010, wasn’t oem at least on early c6’s.
I’ve never used one, but I pin my cranks . Good insurance but i bet few cars have them
No, the diamond washer was added during the first year of production (MY2005) to address loose balancers. Symptomatic customer cars got the washer retrofitted under a TSB.
My 2006 came with the washer from the factory. All the cars got them.
Originally Posted by C3Angel
So I’m good on not using it and replacing with just the ARP bolt, Summit Harmonic Bal., new belts, and new GM timing chain seal?
I would use the washer. There isn't anything in principle that makes it less necessary with an ARP bolt or a Summit balancer.
The only thing that would change would be keying/pinning the crank.
Note there's a new-style washer that comes without the rubber retainer. It just looks like a circular shim with a single keyway notch. Works the same way as the original.
Harmonic balancer help asap!
