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Stripped threads, hole size?

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Old Mar 27, 2013 | 09:43 AM
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Default Stripped threads, hole size?
Stripped a hole on the inner primary that holds the outer primary on, one of the lower ones near the plug. Anyone know the size of that so I can tap it one bigger?

Thanks
 
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Old Mar 27, 2013 | 09:44 AM
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Use a thread guage on an existing bolt. Or use a die on an existing bolt until you find the correct size,
 
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Old Mar 27, 2013 | 09:55 AM
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Would if I had stuff need to borrow a set to fix just trying to get a step a head
 
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Old Mar 27, 2013 | 10:05 AM
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A better choice would be a heli-coil repair kit. Then you use the same bolt as original and have a stronger thread than you did when new.

And I believe all the outer primary bolts are 1/4 20

You can always go online at Ronnie's to find out what the bolt size is.
Another hint if it used the same tool as all the other screws then it is the same size bolt as them.

http://www.shopronniesharleydavidson...partfinder.htm

Don't know about Helicoils here is what you would need.
http://www.autozone.com/autozone/acc...er=557009_0_0_

Helicoil 5521-4 1/4-20 Inch Coarse Thread Repair Kit : Amazon.com : Automotive Helicoil 5521-4 1/4-20 Inch Coarse Thread Repair Kit : Amazon.com : Automotive
 
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Old Mar 27, 2013 | 12:56 PM
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Originally Posted by vzts4q

And I believe all the outer primary bolts are 1/4 20
I believe you are correct.
 
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Old Mar 27, 2013 | 01:00 PM
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+1 on the helicoil, used plenty on aircraft in the army, never had to redo one
 
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Old Mar 27, 2013 | 01:14 PM
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Helicoil would be the way to go. NAPA sells them with the appropriate bit and installer tool. Make sure you tap straight.
 
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Old Mar 27, 2013 | 02:20 PM
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Thanks, I appreciate the info as always
 
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Old Mar 27, 2013 | 03:40 PM
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Helicoils suck, and will pull out. If you have the ability and the thickness do a time-sert repair http://www.timesert.com/ It wil last forever
 
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Old Mar 27, 2013 | 03:45 PM
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Yes 1/4-20. How the heck did you strip it? I work on them daily and never stripped one. They are only suppose to be around 108 inch pounds.
 
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