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Old 08-26-2007, 07:37 PM   #1
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Exhaust manifold bolt

I've come across several, (at least four), 2.5 cyl heads with the last, (closest to the firewall), exhaust manifold bolt broken off in the head. I believe I've even read about it happening on the forum here. What's up with this? Why is it so common, and would it be a wise decision to stud that hole...or better yet all of them?

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Old 08-27-2007, 10:36 AM   #2
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its pretty common on all vehicles with some miles on them for the manifold bolts to break. its from the extreme heat theyre under. i always try to hose them down in PB blaster for a couple days prior to having to unbolt it.
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