So the previous owner stripped the hell out of the oil drain plug case threads. The plug still stays in, but it does leak a little. I bought a helicoil kit today but the helicoils are larger than the length of the bolt. Thought I could cut them down to a smaller size, but my big concern is how thin the metal layer of the case seems to be.
1) Does the case need to be THICKER than the helicoil, or can the extent of the helicoil be flush with the openings? i.e. how small does the helicoil need to be really.
2) Anyone have another suggestion for how to approach this?
I really want to proceed cautiously before I tap out the helicoil thread