LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Crank hub install

Old Jan 15, 2009 | 06:16 PM
  #1  
01pewterz's Avatar
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From: Mabank, Texas
Crank hub install

When putting the crank hub back on does it have to line up with anything? Its not keyed, but I was just wondering since I stuck it back on, do I need to pull it back off and reposition it?
Old Jan 15, 2009 | 06:37 PM
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Only if you want it to line up for judging TDC, like when adjusting valves and such.
Old Jan 15, 2009 | 08:36 PM
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01pewterz's Avatar
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ok well I'll just leave it then, I think its lined up w/ #6 TDC right now
Old Jan 15, 2009 | 09:20 PM
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Just a tip. While you have it at TDC, mark the balancer with a paint pen so you can easily find it again. TDC for #6 is also TDC for #1. Just compression vs exhaust strokes.
Old Jan 15, 2009 | 09:37 PM
  #5  
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Originally Posted by 01pewterz
ok well I'll just leave it then, I think its lined up w/ #6 TDC right now
That's the same thing. The crank rotates twice for every time the cam does. 1 and 6 TDC are in the same position as far as the crank goes.
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