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head Bolt Thread Repair

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Old Jun 18, 2012 | 10:48 AM
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Default head Bolt Thread Repair

A friend has a '95 Dyna which is blowing head gaskets because of stripped threads for the head bolts. I haven't torn it down yet, so my question is... Is this a common problem, and is it repairable with thread repair kits like Heli Coil?

Any input is appreciated.
 
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Old Jul 13, 2012 | 05:25 PM
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I don't know if it is common, but stripped threads can certainly be repaired using helicoils. There are other thread inserts available, but whichever you go with I recommend having them installed by an indy who has the right tools. It is easy to make a mess of installing them.
 
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Old Jul 29, 2012 | 03:02 PM
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Turns out the case is cracked. This is a shop diagnosis, not my own. In this situation I assume the easiest fix is to just swap on a used engine?
 
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Old Jan 25, 2013 | 09:57 PM
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Default Harley helicoils

NO!!!! I tried helicoils on the threads of my 95 FXDWG and they did not hold. I called my local shop and he told me the same thing. I am going to try a steel insert (time-sert) instead.
 
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