LT1-LT4 Modifications 1993-97 Gen II Small Block V8

The little triangle or arrow on the H/B

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Old 04-01-2006, 02:14 PM
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Default The little triangle or arrow on the H/B

I am going to pull my harmonic balancer, and noticed it has no keyway.
It does have like an arrow or triangle pointing upward, does this mean
anything. Or it doesen't matter how I reinstall it??
Old 04-03-2006, 12:52 PM
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I'm like 99% sure that the little triangle/arrow type thing is an indication of top dead center and once you take off the balancer you'll probably notice that there is also like a little triangle type thingy in between two of the spokes of the hub which should be aligned with the triangle on the balancer so that you know when the engine is at top dead center.
Old 04-03-2006, 07:26 PM
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I agree! I don't understand why GM did not key the hub! The crank is keyed and if the hub was keyed TDC would be more of a sure thing.


Mike
Old 04-03-2006, 09:02 PM
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actually on 93-94 the crank is not keyed. I recently pulled the hub off of my 94 to replace the front main seal and just as a precaution I made sure the engine was at TDC and I had the trans off so I made a line on my flexplate with a level so that I could verify it being at TDC when I pulled the hub off. Thankfully I made that mark on my flexplate or else my engine might not be at TDC because the crankshaft was not keyed.
Old 04-05-2006, 08:11 AM
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I wonder if corvette LT1s are different, I helped with a friends 92 C4 and the crank was slotted for a key and the crank on my 95 C4 is slotted too.



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