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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Head bolt stripped during installation, redo right?

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Old Jun 9, 2018 | 08:37 PM
  #1  
Bobobigdog's Avatar
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Head bolt stripped during installation, redo right?

Details: 3VZE on a 88’ 4Runner

So I stripped the #3 bolt on the right head, the last 90 degree turn didn’t feel nearly as tight. I checked, not even 75ft-lbs. Is the block stripped or the bolt? The other head went on perfect.

I think the right thing to do is take the head off, investigate the block/bolt, replace gasket and bolts. Right?

Thanks people.

Last edited by Bobobigdog; Jun 9, 2018 at 08:38 PM. Reason: Forgot some details
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Old Jun 9, 2018 | 08:41 PM
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From: Wv
Will the bolt get tight at all or as you tighten the bolt and you start to feel resistance it becomes loose?
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Old Jun 9, 2018 | 08:45 PM
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As I pulled that last quarter turn it just felt like lower resistance, it is about 65 ft-lbs I’ll have to check that tomorrow morning. I checked the other bolts and 75 ft-lbs doesn’t budge any of them.
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Old Jun 9, 2018 | 09:10 PM
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From: Wv
Did you tap the threads? As crucial as head bolt torque is if it were me and i doubted the integrity of the block threads I'd tear it apart and verify the problem however if it's not obvious that its stripped maybe the thread were dirty
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