Harmonic Balancer... To get a new or just a seal
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Joined: Feb 2008
Posts: 151
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From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Harmonic Balancer... To get a new or just a seal
Well the title says it all. My harmonic balancer seal broke and I was wondering... Would I feel comfortable just replacing the seal or should I get a completely new balancer? Honestly, if the seal will last me a good while thats good too, but I just don't want to have to worry about it riding down the road. I'm wondering how durable they are. Can someone give me some suggestions or provide some good links? I'll take a look at all of them. Thanks.
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Harmonic Balancer... To get a new or just a seal
Pull the balancer and check it. If the snout on the balancer has a lip/ridge, you're screwed and you need a new one.
If not, then just grab a new seal.
PS - I love those wheels and white letter tires on that car. That's my style. (and unfortunately only my style on this forum...)
If not, then just grab a new seal.
PS - I love those wheels and white letter tires on that car. That's my style. (and unfortunately only my style on this forum...)
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Thread Starter
Member
Joined: Feb 2008
Posts: 151
Likes: 1
From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Harmonic Balancer... To get a new or just a seal
I grabbed a seal for now. I can't afford the full balancer and it's still hanging on there in good shape. I caught it just as it broke off in my driveway and has only been started once for about 10 seconds after its done so hopefully I didn't ruin it
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Joined: Jan 2000
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Harmonic Balancer... To get a new or just a seal
What are you calling the "seal"? The only seal on the balancer is the front oil seal in the timing cover, and when it fails it leaks oil, not makes the balancer fall off.
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Member
Joined: Feb 2008
Posts: 151
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From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Harmonic Balancer... To get a new or just a seal
Well its a really tiny ring that goes on the front of the balancer. It has a spring wrapped around the inside. Hang on, I'll check the specific name.
Timing Cover Seal? Sound right?
Timing Cover Seal? Sound right?
Thread Starter
Member
Joined: Feb 2008
Posts: 151
Likes: 1
From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Harmonic Balancer... To get a new or just a seal
Alright, now the guy at autozone is telling me I'm going to need a new harmonic balancer. The rubber has separated from the metal. I'm thinking I wasn't descriptive enough.
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From: Mississauga, Ontario, Canada
Car: 1984 Chevrolet Camaro Z28
Engine: Carb'd LT1 w/ a Cam :)
Transmission: T56
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Re: Harmonic Balancer... To get a new or just a seal
Anyways, you can always go to a scrap yard and grab one from another 305/350...or, grab a decent one from Summit.
I think you can pick up a decent SFI balancer from Summit for just over $100.
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Harmonic Balancer... To get a new or just a seal
Which of those do you need? They're very different parts.
Last edited by Apeiron; Aug 5, 2008 at 02:55 PM. Reason: Automerged Doublepost
Thread Starter
Member
Joined: Feb 2008
Posts: 151
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From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Harmonic Balancer... To get a new or just a seal
Autozone has one for $50. Could I get away with that?
P.S. if you could find a link in your spare time, that'd be cool if I need to get one from Summit.
P.S. if you could find a link in your spare time, that'd be cool if I need to get one from Summit.
Thread Starter
Member
Joined: Feb 2008
Posts: 151
Likes: 1
From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Harmonic Balancer... To get a new or just a seal
My dad bought one for $35. I'll install it soon.
I need to know guys... Is this a common problem or am I running that engine too hard?
I need to know guys... Is this a common problem or am I running that engine too hard?
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