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A Tale of Two Balancers

Old May 12, 2001 | 04:50 PM
  #1  
Bort62's Avatar
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A Tale of Two Balancers

Allright, In the world of Internally Balanced SBC's, we have Two Balancers. The One with the Strait Up Timing mark, and the Other one.

The Lg4 has the "other" one, and I just bought a strait Up, to replace it.

My Question For you, Is How many deg off Is one mark from the other, IE where should I make my "correct" Mark. I would Simply trace the line over from the old balancer, But with 150k On it, Its accuracy is suspect, and hence the reason for this whole undertaking.


Thanks...



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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver
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Old May 12, 2001 | 05:33 PM
  #2  
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From: okeana Ohio usa
I had a problem like yours I put a balancer from a 79 305 on my 85 305 tpi ta. And couldn't figure out why the timing marks were so off. So ended up pulling it off and matching the timing mark with the other And I think I got it pretty close. Another way is to find top dead center of compression stroke for #1 cylnder and the balancer should be at 0tdc.
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Old May 12, 2001 | 07:18 PM
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From: Reno, NV
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2 1/16 inches should be REAL close.

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Old May 13, 2001 | 07:28 PM
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Just for anyone that may later archive and find this post:

For your 6 and 3/4 balancer, the degrees are as follows

(6.72/2)^2 * pi = 35.7665" circumference

35.7665"/360 = 2.125/x

x = 20.389 (crank degrees, so since 2.125 isn't exact, go with 21 or 20, 20 is nicer)

So it should be off by about 10 cam degrees.

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1984 T-top Trans Am
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Old May 13, 2001 | 09:52 PM
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haha, Yeah I should have thought of that 84

Oh well, Thanks guys.



------------------
60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype
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