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stripped inner head

stripped inner head

Old 02-07-2009, 09:30 AM
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Questions?? stripped inner head

hey guys,
a few months ago i bought a tamiya nitrage 5.2 (which has a 5.2 cc, FR-32FX engine).
this is my first nitro car, so i am very new to nitro cars, however, i have had a lot of experience with electric RC cars.

anyway,
i few days ago i managed to strip the inner head of my nitrage by over tightening the glow plug.
i order a new inner head, but yesterday evening, i got a mail from the online shop to say that my order had been shipped, but that it would take a month for it to arrive!

since i am not really prepared to wait a month to drive my nitrage again, i need to find a way to fix the stripped threads inside my inner head, so i can screw the glow plug back in.
does anyone have any idea on how to fix this?

thanks
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Old 02-07-2009, 11:37 AM
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i think the threads are 1/4 32, you could try a helio coil ?? never tired it but read about it.
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Old 02-07-2009, 12:21 PM
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They make helio coils that small?
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Old 02-07-2009, 01:51 PM
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yup
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Old 02-07-2009, 05:52 PM
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actually it's called helicoil.
even so, i would have to buy it, which means that i would need to wait for the helicoil to arrive.
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Old 02-07-2009, 06:01 PM
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Originally Posted by sugs
They make helio coils that small?
I've used helicoils that were 4-40

If you go this route you'll have to get a special tap too. So for instance, if the threads are 1/4-28 you'll need a 1/4-28 STI tap. This tap will cut larger than 1/4-28 so the threaded insert can be installed.
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