Replacing Wobbling Harmonic Balancer

Tech discussions on the L77 6.0L V8.
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Silversled
Posts: 270
Joined: Fri Aug 12, 2016 7:13 am
Location: Tampa, FL

Replacing Wobbling Harmonic Balancer

Post by Silversled »

Hey Guys,

My 2014 has an apparent wobbling harmonic balancer (crank pulley).

Yes I can have the dealer replace it under warranty but why would I hand the car over to replace a $130 part? I have the tools and it's not my first rodeo. An important note is I plan on doing an LSA supercharger conversion once I finish some cosmetic stuff.

Question are: Are there any issues with just installing an OEM LSA pulley now and running it is? Are both pulleys the same diameter and offset as the stock L77? Will the LSA pulley function properly (i.e. not slip) if I don't pin it now?

Thanks.
2014 Chevrolet Caprice PPV
2014 Chevrolet Stingray Z51
2016 AMG C63
2015 BMW X5 iDrive 50i
xcidmigs
Posts: 783
Joined: Fri Feb 13, 2015 8:12 pm
Location: SE PA

Re: Replacing Wobbling Harmonic Balancer

Post by xcidmigs »

Would seem like your car if still under warranty should be repaired by GM in the event that you suffer any other engine failure items that are more serious and want them to repair that....
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