L82 Harmonic Balancer Replacement
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Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
L82 Harmonic Balancer Replacement
When I start my own personal project from hell this winter, I'm going to replace my almost 40 year old harmonic balancer, so I have an associated dumb question: is the L82 crank internally balanced from the factory or do I need to buy an external balance harmonic balancer?
Adam
Adam
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Melting Slicks
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From: Woodinville WA
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I've swapped a 6-3/4 balancer for an 8" one countless times. Just need to get the correct timing pointer for the balancer. THE 8" has a little more mass/inertia.
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Thread Starter
Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
Update: Well, I went overboard, but I got the SFI ATI Super Damper from a guy on ThirdGen for $160, so I couldn't say no... Way better than I needed but, I'll take it.
http://www.jegs.com/i/ATI/085/917200/10002/-1
Adam
http://www.jegs.com/i/ATI/085/917200/10002/-1
Adam
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Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
The dampener is only a VERY little much smaller than the one I have.
I didn't even know that these cars cam with a timing marker (never noticed mine) I have no understanding of how to setup timing so it's never occurred to me.
I will be doing a head, cam, lifter, push rod, timing chain, timing cover, and harmonic balancer replacement starting this winter. My thought is that while I'm doing all of that, I can just move the timing pointer to where it's supposed to go, right?
People replace harmonic balancers all the time, it can't be that hard, right? -Am I missing something obvious?
Adam
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perhaps the word pointer was incorrect, I meant the timing tab, with the numbers. Typically it is a fraction of an inch away from the balancer and when setting the mark/iine on the balancer to the number on the tab your viewing orientation/angle to the tab has no consequence. Unless you have a way of moving whatever timing tab you intend to install on the engine close to the balancer your viewing orientation/angle will effect the accuracy of your timing initial or total adjustment.
Thread Starter
Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
perhaps the word pointer was incorrect, I meant the timing tab, with the numbers. Typically it is a fraction of an inch away from the balancer and when setting the mark/iine on the balancer to the number on the tab your viewing orientation/angle to the tab has no consequence. Unless you have a way of moving whatever timing tab you intend to install on the engine close to the balancer your viewing orientation/angle will effect the accuracy of your timing initial or total adjustment.
What is the fix?
Do I just buy a timing pointer tab that's made to work with my new balancer and install it per the instructions and I'm good?
Adam
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Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
I have another dumb question that I probably should've figured out before I bought the thing: I noticed that ATI sells a version of the Super Damper that they say is for Serpentine belts; does that mean that you can only run a serpentine pulley setup with a serpentine-specific damper or why would they even sell such a thing?
Adam
Adam
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I found a number of 7" balancer timing tabs
https://www.summitracing.com/search?...1%2B4294943550
The link you provided further up in this thread was for a stock multi-belt drive like your l-82. That is what you bought, correct? You did not buy a balancer for a serpentine drive, correct?
https://www.summitracing.com/search?...1%2B4294943550
The link you provided further up in this thread was for a stock multi-belt drive like your l-82. That is what you bought, correct? You did not buy a balancer for a serpentine drive, correct?
Last edited by MelWff; Sep 8, 2017 at 01:36 PM.
Thread Starter
Melting Slicks
Joined: Jun 2016
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From: Woodinville WA
I found a number of 7" balancer timing tabs
https://www.summitracing.com/search?...1%2B4294943550
https://www.summitracing.com/search?...1%2B4294943550
So this really is just as simple as buying a new timing tab that matches the damper's diameter?
Adam