Crank Bolt, It’s Not M8 x1.25 |
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Crank Bolt, It’s Not M8 x1.25 |
Mblizzard |
Aug 18 2019, 06:28 AM
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#1
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
This not a stock crank. The stock is M8 x1.25. I am sure this is some variation of the AA 78 mm crank but the bolt into nose of crank is clearly not stock.
As near as I can tell it is a M7 1.25. 1.0 is too coarse to start. Anyone know for sure what the threads are on these cranks and where to get the bolt? Type 4 store online has the stock bolt. |
Mark Henry |
Aug 19 2019, 05:56 PM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Take it to a machine shop they can tell you what the size is.
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Superhawk996 |
Aug 19 2019, 06:36 PM
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#3
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914 Guru Group: Members Posts: 5,869 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Take it to a machine shop they can tell you what the size is. (IMG:style_emoticons/default/agree.gif) Machine shop could also heli-coil it to whatever you want. That crank nose fastener is not highly stressed. |
mepstein |
Aug 19 2019, 07:26 PM
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#4
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914-6 GT in waiting Group: Members Posts: 19,295 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Take it to a machine shop they can tell you what the size is. (IMG:style_emoticons/default/agree.gif) Machine shop could also heli-coil it to whatever you want. That crank nose fastener is not highly stressed. (IMG:style_emoticons/default/agree.gif) any machine shop could make it perfect for you with the right type of insert |
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