C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Correctly Aligning Crank/Hub and Pulley

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Old Jun 22, 2009 | 12:24 PM
  #1  
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JAKE
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Default Correctly Aligning Crank/Hub and Pulley

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1996 Vette LT1

Since this is only the 2nd LT1 I've built and because I can't find Volume 2 of my FSM set, I want to check my memory on the alignment just to be sure I do it right.

When installing the hub, I'm supposed to align the DOT on the hub with the keyway groove in the crank snout. then when installing the damper/balancer/pulley, I'm supposed to alight the cast-in arrow with the hub's DOT.

Am I correct? I want to prevent any chance of a vibration in my son's 96 LT1Vette.

Thanks for any help.

Jake
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Old Jun 22, 2009 | 01:37 PM
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From: Apple Valley MN
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Can't confirm the crank to hub orientation, but the pulley's arrow lines up with the raised area of the hub. And if I remember correctly, it will only bolt up one way - the bolt holes aren't evenly spaced.
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Old Jun 22, 2009 | 01:46 PM
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With #1 cylinder at TDC, the cast in arrow on the crank hub should be at 12 o'clock. The balancer will only fit on the hub one way, so you don't have to worry about orienting the balancer.
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