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Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

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Old 06-26-2007, 03:53 PM   #11
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Checking.......

M8x1
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Old 06-26-2007, 06:39 PM   #12
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Thanks Bill! Hopefully I can do this w/o removing the SC.
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Old 06-26-2007, 06:50 PM   #13
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You MIGHT be able to do it through the accessory bracket, as it'* sleeved with a steel collar, but you'll know that answer when you get the heli-coil kit. My bet is you'll need a SC outlet gasket.

Here'* an example of what you want:
http://cgi.ebay.com/Helicoil-Thread-...QQcmdZViewItem

Or
http://cgi.ebay.com/M18-2-5-RECOIL-H...QQcmdZViewItem

The stock stud may be M8x1 or M8x1.25. I'm not sure. I THINK I went with M8x1, but I could do that because I replaced the stud and nut with a stainless M8x1 Hex-head cap screw.
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Old 06-26-2007, 07:08 PM   #14
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Stripped threads:
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Drilled out with either the drill that comes in the kit, or the drill size the kit instructions specify (I also lightly chamfered the lip to make the tap start easier for the next step):
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Tapping the new threads to match the insert (use oil, back out frequently to clean the slag, keep it STRAIGHT):
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Finished tapping:
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The new thread insert screws in just like a bolt, using the insertion tool (clean the oil from the tapping step out first) and apply a little red loctite to the OUTSIDE of the coil and the INSIDE of the tapped hole before insertion. This will help lock the insert in place:
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Insert fully seated. The tab sometimes breaks off naturally, but I usually have to get in there with small needle-nose pliers to break it off. It doesn't really matter. Your stud/bolt will just bend it out of the way:
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Old 06-27-2007, 10:20 AM   #15
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Thanks Bill. I would have checked this last night when I said I was about to, but the internet wasn't working.

Looks pretty easy. I wish I didn't have to remove the SC again, but it shouldn't be that much of a pain. Did you say you can buy these inserts separately, whatever size you need?
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