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Binding mount on a Bushwacker

post #1 of 6
Thread Starter 

Anybody know if I will need a 3.7 or a 4.1 drill bit to mount bindings on my bushwackers?  Also, if a ski calls for  a 3.7 mil drill bit, is the 12AB tap still used, or is there a different method for making  threads on an all wood ski?  Thanks.

post #2 of 6
Quote:
Originally Posted by salmonsoup View Post
 

Anybody know if I will need a 3.7 or a 4.1 drill bit to mount bindings on my bushwackers?  Also, if a ski calls for  a 3.7 mil drill bit, is the 12AB tap still used, or is there a different method for making  threads on an all wood ski?  Thanks.

3.5 or 3.6 with no tap on non-metal topsheet

 

4.1 and tap metal topsheet

post #3 of 6
Thread Starter 

Chenzo,  Thanks for the reply.   Today I removed the demo bindings and it looks like there is going to be some interference with the old holes and the new holes that need to be drilled to mount a Solly s810.  Would you know what the proper procedure is to drill out the new holes so that the new screws and binding wont rip out? Can I just move the toe piece forward or aft of the old holes or is there a different procedure.  Thanks.

post #4 of 6

Are you using a paper or metal jig?  If you are freehanding it, you can find a paper jig here - http://www.tetongravity.com/forums/showthread.php/153971-Binding-Mount-Paper-Templates

 

By lining up the jig, you should be able to find a mount area free of old holes.  You might end up ahead or behind center.

 

You will want to plug the old holes - if you dont have plugs you can fill them with 5 min epoxy, or even wood glue.

 

My rule for the distance between new and old holes is a minimum of 1/8", 1/4" is better.

 

Yes you can just move the toe, but that heel doesn't have a huge range.

 

Do one ski at a time, start to finish - so if you screw up, you only screw up one ski.

 

Alternatively you can install heli-coils or inserts - or have a shop do it.

 

good luck

post #5 of 6
Thread Starter 

I've been using the paper templates from TGR.  I was just curious about the distance needed between the holes.  I can easily squeeze a quarter inch out of the front binding.  Thanks for your time.

post #6 of 6

ya, sorry for the elaborate post.  nobody responded to you, so i thought i'd give a quick in depth response.  you prolly live somewhere that has open ski areas right now - we are still 3 weeks away from an average early opening around here.  :ski

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