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Exhaust Manifold Torque Pattern....bolt tightening..

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  #1  
Old 09-20-2022, 12:28 PM
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Exhaust Manifold Torque Pattern....bolt tightening..

Hi, Is there a pattern of re-installing the exhaust manifolds on a F-250 5.4L 2V V-8?? Or do you just go around the horn when re-installed and just tighten. Does anyone know of a specific pattern?
 
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Old 09-21-2022, 08:40 PM
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Great Question!

Never seen a required torque sequence for the exhaust manifold.

I would just tighten, and final torque like a head gasket sequence,

start in the middle, and radiate your way to the ends .
 
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Old 09-22-2022, 05:06 AM
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Does anyone know of a specific pattern?
Yes, there is. It's in the factory service manual. It is not as described above.

From the '03 WSM:

LH manifold shown. RH manifold is mirror image.



 
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Old 09-22-2022, 11:09 AM
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Originally Posted by projectSHO89
Yes, there is. It's in the factory service manual. It is not as described above.

From the '03 WSM:

LH manifold shown. RH manifold is mirror image.




Thanks, that is interesting!

Always something to learn.
 
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