Stripped exhaust manifold threads
#1
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Stripped exhaust manifold threads
So upon removing my oem manifold for the first time, the majority of the threads in one hole in the head came out with the manifold stud, that came out with the nut. So, I assume helicoil-ing it is the appropriate route? Is this something I should attempt to do on my own having never done this before, or take to a machine shop? Definitely have the appropriate tools to do it, only the guy knowledgeable enough that would typically give me a hand is currently house ridden to do surgery.
Suggestions?
Suggestions?
#4
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Agreed on the king-serts. Helicoil is a cheapo way out; may not stay in place. You want the ones with a positive locking mechanism to stay put.
If you're not comfortable to do it yourself, at least pull the head and take it in. Having the car towed in to do it in place is just one more variable to eliminate.
If you're not comfortable to do it yourself, at least pull the head and take it in. Having the car towed in to do it in place is just one more variable to eliminate.
#7
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Good deal. Will look into the Keenserts. Thanks! My only concern, and maybe it's just over thinking things, but could this be done with a hand drill (as opposed to a drill press)? Will the bit follow the original hole enough that it remains perpendicular to the flange?
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So here's what happened...
I drilled the 12.5mm hole, and tapped it m14x1.5. The problem was, when i threaded the insert in and tightened it down (using a bolt), it didn't go in far enough. And the bolt backed out without the insert. So, it was stuck.
So what we did was used red locktite put a bolt in, and let it sit overnight. Bolt came out perfectly the next day.
Since i didn't really feel like paying $40 for the only bottoming tap I could find locally, we used an angle grinder and rounded just the slightest bit of the insert. Worked great. MUCH better than a helicoil. Highly recommend it.
I paid: $6 for the insert (x2 for the one i broke with locktite), $7 for the tap, and $7 for the drill bit.
Pictures:
I drilled the 12.5mm hole, and tapped it m14x1.5. The problem was, when i threaded the insert in and tightened it down (using a bolt), it didn't go in far enough. And the bolt backed out without the insert. So, it was stuck.
So what we did was used red locktite put a bolt in, and let it sit overnight. Bolt came out perfectly the next day.
Since i didn't really feel like paying $40 for the only bottoming tap I could find locally, we used an angle grinder and rounded just the slightest bit of the insert. Worked great. MUCH better than a helicoil. Highly recommend it.
I paid: $6 for the insert (x2 for the one i broke with locktite), $7 for the tap, and $7 for the drill bit.
Pictures: