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Old 05-07-2010, 12:00 PM   #104
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Originally Posted by sailor View Post
^^^ Grinding until you see round circle is necessary to remove ALL of the bolt head...

If you still see "hex" in the grinding area some head remains...

(No more side notes on aircraft, gets too confusing for ya - (Grumpy knows his t on that...)

As to worries about removing the stub, once tension is off removal is generally MUCH easier - if locktite was used, a little heat to melt it could be applied - being careful of rubber nearby of course...
No! ~ I mean the stub end has taken the shape of the hex head because I dremeled along the back of each of the hexs' 6 flat sides. The head is 8mm thick - I don't think there can be any head left on the front of the crank? ~ but it may well have 'mushroomed' with the heat generated by the dremel cutting? What would have been the original depth of the bolt head 8mm? 9mm? 10mm? 12mm?

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