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Harmonic balancer bolt torque.

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Old April 3rd, 2017, 08:19 AM
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Bfg
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Harmonic balancer bolt torque.
What is the correct torque on the harmonic balancer bolt on a 65 400? My CSM list it as being 50 lbs. seems I have read somewhere else it's around 150 lbs.
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Old April 3rd, 2017, 09:25 AM
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Do you have the small or large bolt? There were two different sizes used in 1965 and that could be the difference your coming up with.

Here's another thread discussing this difference.

https://classicoldsmobile.com/forums...ncer-bolt.html
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Old April 3rd, 2017, 11:15 AM
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It is the larger 1 1/18.
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Old April 3rd, 2017, 12:58 PM
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the large bolt taking a 1-1/8" socket needs 160 ft lb. with oil as the lube on the threads.
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Old April 3rd, 2017, 06:32 PM
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Ok thanks.
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