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Discussion Starter #1
It happened. I knew I had overtorqued the unshouldered bolt the other day, so I came into the shop this morning to redo it, undid the bolt and went to retorque it to 12 ft/lbs and it snapped with what felt like no force at all. I've read the bolts are no longer in production and hard to find, but since it's just a bolt (without the shoulder) could I replace it with a bolt that matches specs from McMaster? Any tips on extracting the shaft?
 

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12 Ft lbs? No wonder it snapped. 6mm bolts only torque to 7 ft lbs. As long as it is not a shouldered bolt you can use any bolt. Your local hardware store should have them.
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Discussion Starter #3
That's what I read on here. Seemed like too much but did it to do it.

On a side note, should red locktite be used? I don't like the idea of supergluing a bolt that needs to be removed in order to go down into the engine, and in this case I'm especially glad I didn't cos I feel like getting the shaft of the bolt out would've been near impossible.
 

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12 Ft lbs? No wonder it snapped. 6mm bolts only torque to 7 ft lbs. As long as it is not a shouldered bolt you can use any bolt. Your local hardware store should have them.
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This is true for standard 8.8 bolts but these are 12.9 and specs say they should be tightened to 12-15 Ft lbs. 12 lubed. Also see the sticky topic in this section.
 

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Discussion Starter #6 (Edited)
I've been searching but haven't found complete confirmation and cant find my pitch finder: are the cam sprockets bolts M6x1.0? Most of the m6 bolts in the bike are that, would make sense if the thread is coarser than a m6x1.25. Also what length are they supposed to be?
 

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They are standard M6 metric bolts so the pitch is 1.0. The length is not that critical because you can just cut off the rest. 20mm is already too long.
 
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