Harmonic Balancer Replaced, Still Has some play

Tech discussions on the L77 6.0L V8.
lastcall190
Posts: 604
Joined: Mon Sep 11, 2017 5:17 am
Location: North Jersey

Re: Harmonic Balancer Replaced, Still Has some play

Post by lastcall190 »

Then I stand corrected.
2012 Caprice
2008 CVPI

Both gone but not forgotten...
Tech56
Posts: 11
Joined: Sat Jun 16, 2018 10:10 pm

Re: Harmonic Balancer Replaced, Still Has some play

Post by Tech56 »

That is just my particular instance though. I agree a new pulley shouldn't wobble but I believe the GM publication states that it may appear that the pulley is wobbling even though it's in "spec"

I remember thinking to myself right after I put the new pulley on wow that looks great. Then I check it like a week later and it looks wobbly again. Rechecked the bolt and it was good. I did not use the bolt to pull the new one on either, the $20 tool from amazon works fine.
chipperdoodles
Posts: 27
Joined: Thu Jul 12, 2018 2:12 pm

Re: Harmonic Balancer Replaced, Still Has some play

Post by chipperdoodles »

Finally ordered a replacement and the right tools. I took a gamble and got a summit racing balancer for ls2 applications. If the fitment isn't right i'll just return it but I didn't want to buy another dayco and the price of this one (189) was dang good for an sfi rated balancerd. The only thing between that was the dayco one for 220 and then an ati one for about 400$. I'll keep things posted here just to let you guys know what's up!
chipperdoodles
Posts: 27
Joined: Thu Jul 12, 2018 2:12 pm

Re: Harmonic Balancer Replaced, Still Has some play

Post by chipperdoodles »

Right tools, nicer balancer mich easier this time. I didnt even have to remove the radiator fan. threw in some new spark plug wires while i was at it.
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CrashTestDummy
Posts: 2300
Joined: Sat Feb 07, 2015 2:31 pm
Location: Pearland, Texas

Re: Harmonic Balancer Replaced, Still Has some play

Post by CrashTestDummy »

That's purdy! Is it steel or aluminum? Have a part number for that new unit?
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
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chipperdoodles
Posts: 27
Joined: Thu Jul 12, 2018 2:12 pm

Re: Harmonic Balancer Replaced, Still Has some play

Post by chipperdoodles »

CrashTestDummy wrote:That's purdy! Is it steel or aluminum? Have a part number for that new unit?
Is Steel, I got it from summit racing.

https://www.summitracing.com/parts/sum-c2501

It's an 8 rib front (i just made sure the 6 rib belt was on the front 6 ribs), 4 rib accessory, our car wasn't listed under fitments but the engine is so i took a gamble. It's probably the cheapest sfi rated balancer out there too (at least that i could find). It's got a slot for a key too if you want to pin your crank or have an aftermarket one which is nice for future upgrades. Not that I have the money for that lol!
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