Quote:
Originally Posted by bobkatfly
Thanks Maxum. I like the insert over the helicoil. Just one thing though. The insert has a flange stop to limit the thread engagement. The o-ring seal on the plug is a face seal so it would compress on the flange.
It seems the counterbore tool in the kit creates a counterbore that the flange sits in so if you control the bore depth you can get the flange to sit flush with the housing. Sound right?
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I would use the timesert too. You can easily adjust the depth of the hole to get the flange flush, but I don't think you need to over-think it. O-rings can seal all kinds of ways. In my experience, grease on the tap will be more than adequate enough to catch the aluminum chips, especially since gravity is on your side. If you are truly worried, drill and tap while it's full of oil. It will be messy, but the oil will flow the chips out, not in. That said, aluminum chips are not going to damage steel gears and hardened bearing surfaces. The steel will just squishing and chop it to dust.