Harmonic balancer install..

Discussion in 'High Tech Retrofits' started by bondora68, Nov 18, 2020.

  1. bondora68

    bondora68 Veteran Member

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    I put my harmonic balancer on my LS1 engine today. I used the old bolt but my torque wrench tops out at 150Ft Lbs. I kept going but how do I know when it is fully seated? Will it be flush with the end of the crankshaft?
     
  2. badazz81z28

    badazz81z28 Veteran Member

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    Did you use a install tool? You go until it stops.....I only use ARP bolts and ATI balancers, but with them there always a small step that the bolt head rest on the balancer. The snout of the crank is not flush with the balancer. I suggest you find the proper torque wrench. I don't like anything on the engine as good-n-tite. I bought my torque wrench from AutoZone.
     
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  3. badazz81z28

    badazz81z28 Veteran Member

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    I was just a Lowe’s and the craftsman torque wrench up to 250ftlbs is marked down to $50!
     
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  4. Pierre74LT

    Pierre74LT New Member

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    this is the way GM say to install a balancor on an ls1
    1. Install the used crankshaft balancer bolt.
      Tighten
      Tighten the used crankshaft balancer bolt to 330 Y (240 lb ft).
    2. Remove the used crankshaft balancer bolt.
      Important: The nose of the crankshaft should be recessed 2.40-4.48 mm (0.094-0.176 in) into the balancer bore.

    3. Measure for a correctly installer balancer.
      If the balancer is not installed to the proper dimensions, install the J 41665 and repeat the installation procedure.



      [​IMG][​IMG]
    4. Install the NEW crankshaft balancer bolt.
      Tighten
      1. Tighten the new crankshaft balancer bolt a first pass to 50 Y (37 lb ft).
      2. Tighten the new crankshaft balancer bolt a second pass to 140 degrees using the J 36660-A.
     
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