HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
pwallnuts08

head bolt tourquing method?

7 posts in this topic

I'm having trouble understanding what the manual is saying. 07 WR 450, it says to first tourque to 22lbs then take them out regrease and retighten in a x cross to 14lbs.... But then the notes also say after that to mark the bolt and the head then turn the bolt 90 degrees in each of the two steps to reach the specified angle of 180 degrees.... So is the final tourque 14lbs? 22lbs? or 14 and then another 180 degrees? thanks in advance!:bonk:

Share this post


Link to post
Share on other sites

It first says tighten to 22lbs then remove and regrease, then it says NOTE "retighten to the specified tourque in two or three steps in the proper sequence", then the next block reads Bolt Cylinder Head to 14lbs: put a mark on the corner of the bolt and also the cyliner head as shown.; NOTE "Tighten the bolts 90 degrees in each of the two steps to reach the specified angle of 180 degrees in the proper tightening sequence as shown." the picture just shows the bolts being rotated

Share this post


Link to post
Share on other sites
I'm having trouble understanding what the manual is saying. 07 WR 450, it says to first tourque to 22lbs then take them out regrease and retighten in a x cross to 14lbs.... But then the notes also say after that to mark the bolt and the head then turn the bolt 90 degrees in each of the two steps to reach the specified angle of 180 degrees.... So is the final tourque 14lbs? 22lbs? or 14 and then another 180 degrees? thanks in advance!:bonk:

- 22lbs then remove and grease (actually, you want to use 'anti-seize')

- re-install (do not move gasket!) and torque to 14

- then turn each bolt once, in a star pattern, 90 degrees, and repeat once

Share this post


Link to post
Share on other sites

Ok, easy enough. So 14lbs, and then basically another 1/2 turn by doing 1/4 then another 1/4 in a star... correct?

Share this post


Link to post
Share on other sites
I'm having trouble understanding what the manual is saying. 07 WR 450, it says to first tourque to 22lbs then take them out regrease and retighten in a x cross to 14lbs.... But then the notes also say after that to mark the bolt and the head then turn the bolt 90 degrees in each of the two steps to reach the specified angle of 180 degrees.... So is the final tourque 14lbs? 22lbs? or 14 and then another 180 degrees? thanks in advance!:bonk:

The final torque is 14lbs plus and additional 180 degrees.

But after you regrease and go to 14lbs, don't just turn it 180. Turn all 4 90 degrees, then 90 degrees again.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0