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| klkordzi | Harmonic Balancer Question | ||
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Guru Newb
 
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I'm putting the engine back together on my 85 and found it interesting that there wasn't a timing tab on the engine. Aside from that, when I have the engine at top dead center on the compression stroke. the mark on the balancer is not at the 0 mark on the tab (2 o'clock), it's at 10 o'clock. Is this right? Also was the timing tab left off or didn't it come with one?
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Posted on: 2009/8/8 16:29
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| bogus | Re: Harmonic Balancer Question | ||
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Grand Imperial Pooh-Bah
 
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ouch. I am not sure what to suggest here...
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Posted on: 2009/8/8 22:21
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| rklessdriver | Re: Harmonic Balancer Question | ||
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Senior Guru
 
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Sounds like most likely the Harmonic Balancer's outer ring has slipped on the hub.
Most SBC's TDC mark are at 2 o'clock althou some are straight up at 12 o'clock, so you have to be careful that you have the correct timming cover/tab/harmonic balancer combination. Will |
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Posted on: 2009/8/8 22:30
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1984 Corvette. 434 SBC with a Powerglide. Best pass - 8.48@160MPH 1.23 60ft on MT 275/60R15 Radials. 1972 Corvette. LS5 454 BBC with M20 4 speed. Best Pass - Doing good to just pass a gas station. |
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| klkordzi | Re: Harmonic Balancer Question | ||
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Guru Newb
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I changed the timing cover when I changed the cam and added an aftermarket timing tab. I was thinking that the balancer had slipped since the timing mark was so far out but when I looked at the elastomer it didn't look like it had slipped. So pretty much the timing mark will line up with the keyway on the crank right?
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Posted on: 2009/8/8 22:46
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| vetteoz | Re: Harmonic Balancer Question | ||
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Senior Guru
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Quote:
klkordzi wrote: added an aftermarket timing tab. Was the timing tab correct for your engine.The position changed over the years |
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Posted on: 2009/8/9 0:18
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| anesthes | Re: Harmonic Balancer Question | ||
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Master Guru
 
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Older ones were more in the 12 oclock position, then they moved to like 2 oclock. Best to get a new balancer and timing tab.
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Posted on: 2009/8/9 3:40
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