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what is the torque spec for the 8 mm head bolts?

Sent to Ford Experts June 26 2008 at 10:37 AM
   

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2003 explorer 4.0 sohc

Already Tried:
hayns said 24 ft-lbs, and broke bolt before reaching torque spec.

Customer (name blocked for privacy)
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June 26 2008 at 11:10 AM (33 minutes and 30 seconds later)
         
hi what are these bolts for? are they 8mm head or 8mm thread?

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June 26 2008 at 11:14 AM (3 minutes and 46 seconds later)
         
the bolts that mount the head to the block, there are two 8mm bolts and eight 12mm bolts, for my 03 explorer, 4.0L SOHC, flex fuel. hayns manual said 24 Ft-lbs, but the bolt broke before reaching that torque.
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June 26 2008 at 11:18 AM (4 minutes and 18 seconds later)
         
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June 26 2008 at 11:24 AM (5 minutes and 23 seconds later)
         
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June 26 2008 at 11:29 AM (4 minutes and 53 seconds later)
         
when in the sequnece do the 8mm bolts get torqued?
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June 26 2008 at 11:34 AM (5 minutes and 12 seconds later)
         
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this is the procedure:

1. torque the (8) 12mm bolts to 26 ft-lbs, making sure they are evenly tightened

2. torque the (2) 8mm bolts to 23-25 ft-lbs

3. tighten (8) 12mm bolts 90 degrees

4. tighten (8) 12mm bolts a furthur 90 degrees

when tightening the 12mm bolts follow this order (5 & 6 closest to chain):

5 1 3 7

6 4 2 8



Edited by Dave UK on June 26 2008 at 11:35 AM

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