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Intake bolts wont stay seated

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Old Jan 17, 2015 | 07:39 PM
  #1  
1969cutlass4d's Avatar
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From: Idaho
Intake bolts wont stay seated

Working on Alice, and seems every morning I check to make sure that the bolts on my edelbrock intake I installed are staying where they should, seems that at least two of them are always loose.

I have been torquing them to 20fp and not sure how to keep them in place. any ideas?
Old Jan 17, 2015 | 07:41 PM
  #2  
tru-blue 442's Avatar
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From: Marble Falls TX
Use lock washers.
Old Jan 18, 2015 | 11:48 AM
  #3  
Fun71's Avatar
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I found that when using composition intake gaskets with the aluminum intake manifold that I had to retorque the intake bolts every week or so for a couple months until they quit loosening up on me. I think the thermal expansion of the aluminum intake crushes the gasket some, then when the intake cools the bolts are slightly loose. As I said, this eventually stopped after many retorque cycles. Just keep checking them and retorquing as necessary.
Old Jan 18, 2015 | 04:16 PM
  #4  
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Same as Fun71.....I had to re-torque quite a few times. Mine were front,both sides.The ones in the middle just a tad.The rear bolts stayed in spec.I torque em to 35fp.Eddy performer manifold.
Old Feb 2, 2015 | 11:15 AM
  #5  
64Rocket's Avatar
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I think intake torque is more than 20 lbs.

Gene
Old Feb 2, 2015 | 12:17 PM
  #6  
joe_padavano's Avatar
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Originally Posted by 64Rocket
I think intake torque is more than 20 lbs.

Gene
35 ft lbs to be exact. Be sure the bolts are clean and dipped in engine oil first.
Old Apr 20, 2015 | 10:54 AM
  #7  
Don Roberto's Avatar
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From: Chicago
Re-torquing Edelbrock Intake Manifold

I also recently put new gaskets in and yes, the bolts will have to be re-torqued because I already have oil leaks, especially on the back side. I also removed the valve covers to paint them and the bolts are all loose too with some leaking as well. So I will have to re-torque everything. However, for the Performers intake, the instructions indicate 25 pounds of torque, not 20 or 35. For the intake leaks I will finger press more silicon by the leaking areas and then re-torque.
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