replaced bent valves on my dads 98 xj8 4.0 and im ready to put the head back on but cant find the torque specs and pattern for the headbolts anywhere, i searched but no luck.
if someone can help me out id appreciate it.
i found this site with everything else i just cant find the pattern and torque specs
Tmingi chain and tensioner replacement
if someone can help me out id appreciate it.

i found this site with everything else i just cant find the pattern and torque specs
Tmingi chain and tensioner replacement
Sean B
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try looking at page 21 of this pdf, I guess this should help?
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sparkenzap
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What Sean's pdf says and what I believe to be correct is your original post is missing a second round of 1/4 turns.
Sean B
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yep, after your initial 90, you do another 90. The M8 bolts are torqued to 17-20lb ft.
thanks for all the help guys, car is up and running he got it for 800 bucks with 50k miles.
after binging it home i did a compression test and 2 cylinders were 0 on bank b so i took the valve cover off and noticed a failed secondary chain/tensioner which meant bent exhaust valves.
after binging it home i did a compression test and 2 cylinders were 0 on bank b so i took the valve cover off and noticed a failed secondary chain/tensioner which meant bent exhaust valves.
Sean B
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What did you do with the bent valves cylinder head? use another head? I've got to ask if you replaced both secondary tensioners or just B bank?
Sounds like a bargain, good man!
Sounds like a bargain, good man!



