Stripped crankshaft hole with new harmonic balancer bolt.

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rusted nuts

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Helicoil did the trick!

Was a tense hour as I left the harmonic balancer on the crankshaft while drilling and tapping to fit the coils. Cramped and hard to see, worried the whole time I was going to overcut the hole, but the bolt went right in afterward! Had my son use an old v belt with a crowbar to keep the pulley still while I torqued down the harmonic balancer bolt. Small victory with so much left to do on the truck but hell, I'll take it!
Good job.
 

Camar068

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Glad to hear. thx for posting, good to know
 

SirRobyn0

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Helicoil did the trick!

Was a tense hour as I left the harmonic balancer on the crankshaft while drilling and tapping to fit the coils. Cramped and hard to see, worried the whole time I was going to overcut the hole, but the bolt went right in afterward! Had my son use an old v belt with a crowbar to keep the pulley still while I torqued down the harmonic balancer bolt. Small victory with so much left to do on the truck but hell, I'll take it!
Yea good work. I had this happen with a Mr Gasket bolt when I did my timing chain. I just ran a thread chaser over it the crank, got another new bolt, applied lock tite to it and torqued it to 20lbs less than spec.
 

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