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Is it safe to re-tap the crankshaft?

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Old 06-01-2004, 07:02 AM
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Default Is it safe to re-tap the crankshaft?

I've managed to crush first couple of threads in the crankshaft, that bolt #20 goes into on the crankshaft.
So now the bolt doesn't catch at all.

Would it be safe to retap this thread? Would it hold the massive torque that this thread is put under?




Modified by VWkila at 12:00 PM 6/1/2004
Old 06-01-2004, 07:21 AM
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Default Re: Is it safe to re-tap the crankshaft? (VWkila)

you can attempt to retap it, but as you said who knows if it will hold the torque for the bolt you might need to have it helicoiled
Old 06-01-2004, 11:10 AM
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Default Re: Is it safe to re-tap the crankshaft? (eLusive ek4)

Yes, I've thought about Helicoils... It would be a real b!tch to helicoil the crankshaft. Aren't Honda carankshafts heat treated steel?
Old 06-01-2004, 04:58 PM
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Default Re: Is it safe to re-tap the crankshaft? (VWkila)

mmm not too sure i would take it to the machine shop
Old 06-01-2004, 05:00 PM
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Default Re: Is it safe to re-tap the crankshaft? (eLusive ek4)

I just ended up re tapping. It held the 130 lb-ft of torque, so I'm just gonna keep it like it.

Thanks for your help!
Old 07-12-2005, 02:17 PM
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Default Re: Is it safe to re-tap the crankshaft? (VWkila)

What size tap did you use?
Old 07-13-2005, 08:48 AM
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Default Re: Is it safe to re-tap the crankshaft? (hideandgoseiki)

I took a 302 crank to a machine shop and they tapped it in like 2 secs for free
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