Olypen Guy
Newbie
I've got a 1992 k2500 with the 5.7 TBI. Previous owner at some point broke both the stud and bolt that hold the aluminum AC bracket to the cylinder head. I was able to retrieve one from the head, but the other, I've now broken two easy outs into it. There's not enough left to drill it any bigger and still save the threads. So now I'm wondering if there's enough room for drilling it all out and placing a heli-coil in there. I know one of the intake bolts must be kind of close, but I'm not sure where coolant and oil journals go in there. Right now, swapping out the heads is not an option for me. I don't have the money nor do I have the time.
I've tried penetrating oil, heat, you name it. It's recessed about 1/8 of an inch into the head, and I don't currently have access to a welder, so welding a nut on to it is also not an option.
Has anyone done a heli-coil?
The red circle is the one I'm having issues with. Green circle came out fine. Blue circle is the intake bolt I'm slightly concerned about. Then of course, the hidden from outside view, coolant and oil journals.
I've tried penetrating oil, heat, you name it. It's recessed about 1/8 of an inch into the head, and I don't currently have access to a welder, so welding a nut on to it is also not an option.
Has anyone done a heli-coil?
The red circle is the one I'm having issues with. Green circle came out fine. Blue circle is the intake bolt I'm slightly concerned about. Then of course, the hidden from outside view, coolant and oil journals.
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