Thread: Harmonic, Balancer, Crankshaft, Sensor

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  1. #1 Re: Harmonic, Balancer, Crankshaft, Sensor 
    Donating Users alkygto's Avatar
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    Could the outer ring have slipped on the hub? I'm not real familiar with the 3800 balancer (yet. lol) but most have a rubber ring between the hub and outer ring and it could have slipped.

    As far as the crank goes, has the motor ever been out of the car before you bought it?

    1997 Pontiac Grand Prix GTP
    1969 Pontiac GTO
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  2. #2 Re: Harmonic, Balancer, Crankshaft, Sensor 
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    The balance of the engine does seem to have improved, as it idles smoother now.
    I am more curious about the effect of the crankshaft sensor and it telling the computer what position the crank is in being 20* off.
    Also, under boost this engine always made a rattly noise, I always assumed it was a bad coupler in the SC but since the new Crank sensor and harmonic balancer adjustment, the noise is completely gone.

    alkygto - I bought this engine from a junkyard, its a 1999 L67, car is 2003.
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