QUICK! Harmonic Balancer Question!
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From: Cherry Hill, NJ
Car: 92 Trans Am 'Vert
Engine: 305 TPI
Transmission: 5 Speed
QUICK! Harmonic Balancer Question!
On a 92 305 TPI (lb9) harmonic balancer, is the timing mark supposed to be aligned with the crank keyway, or a few degrees off (about 1/2")?
I need to put it back on today, but Im not 100% sure if it has slipped... I searched but didnt find the answer.
Please, help quick!
I need to put it back on today, but Im not 100% sure if it has slipped... I searched but didnt find the answer.
Please, help quick!
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Joined: Sep 2002
Posts: 234
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From: Jacksonville, Tx
Car: 91 RS, 00 TA Ram Air, 86 IROC
Engine: 305 tbi, LS1, 355
Transmission: 700R4, 4L60E, 700R4 NonLU
the timing mark should be a few degrees off of the keyway, as far as I can remember. Just built 2 engines within the last month. Hope this helps, sorry I couldn't be 100% sure.:rockon: 
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The timing grooves on most balancers are about 7° retarded from the crank keyway. 7° is about as closely as I could measure with my equiupment. I've heard a rumor that some Corvettes used a different timing tab on some earlier engines due to the short water pump, and that affected the balancer groove position.
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From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
I have my timing gears set on TDC on the #1 piston....when I go to put the HB back on where will the line most likely be at when lining up with the timing marks?
should it be lined up with "0" or I few degrees off?
should it be lined up with "0" or I few degrees off?
Last edited by Wishmaster's87IROC; Aug 16, 2003 at 11:24 AM.
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