4.0 New Head Bolt Degree Wheel. - JeepForum.com
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Unread 04-02-2013, 10:48 PM   #1
NewLegs
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4.0 New Head Bolt Degree Wheel.

I know theres a specific pattern and torque sequence for installing a head on the 4.0l engine block. But, I'm using new head bolts, and it's common to use a degree gauge to stretch the bolt past required torque.

I guess my question is, what are the degrees for the bolts?
Thanks for your input!

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Unread 04-02-2013, 11:05 PM   #2
cruiser54
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Just torque them to spec and be done with it.
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Unread 04-03-2013, 12:19 AM   #3
NewLegs
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Yeah I've done a lot of reading on it and have found apparently the 4.0 head bolts are a 'variant' of the Torque-to-yield (TTY) type bolts and can be reused once. I wasn't sure if that means torque specs are good enough, or a degree wheel needs to be used as well

But I have found absolutely nothing about degrees, which leads me to believe that you^ are right, and I should just use spec torque.
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Unread 04-03-2013, 10:48 AM   #4
laybackman
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Quote:
Originally Posted by cruiser54 View Post
Just torque them to spec and be done with it.
Agreed! Torque them in their proper sequence is most important.
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Unread 04-03-2013, 11:11 AM   #5
NewLegs
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Thanks guys appreciate it!!
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Unread 04-03-2013, 12:51 PM   #6
mdm
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Don't forget:



(4) Coat the threads of stud bolt No.11 with Loctite
592 sealant, or equivalent.
(5) Tighten the engine cylinder head bolts in
sequence according to the following procedure (Fig.
56).
CAUTION: During the final tightening sequence,
bolt No.11 will be tightened to a lower torque than
the rest of the bolts. DO NOT overtighten bolt
No.11.
(4) Coat the threads of stud bolt No.11 with Loctite
592 sealant, or equivalent.
(5) Tighten the engine cylinder head bolts in
sequence according to the following procedure (Fig.
56).
CAUTION: During the final tightening sequence,
bolt No.11 will be tightened to a lower torque than
the rest of the bolts. DO NOT overtighten bolt
No.11.
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