helicoils work great if they are put in properly and not abused after installation. I used a helicoil in the "head gasket" of my 2 stroke motorbike, that surely proves it's worth.# and that was years ago and its still going strong, many plugs later
@Dylan started
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helicoils work great if they are put in properly and not abused after installation.
I used a helicoil in the "head gasket" of my 2 stroke motorbike, that surely proves it's worth.#
and that was years ago and its still going strong, many plugs later