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HomeAircraftHelicopterHelicopter Main Discussion › Replacement shafts for Sullivan starter wands
04-25-2009 05:35 AM  9 years agoPost 21
Dood

rrProfessor

Wescanson

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USED motor oil.
Thats how I was taught to harden steel.
The microscopic metallic particles are supposed to fill in the expanded pores of the hot metal. As the metal cools, the pores close up and seal in the metallic particles floating in the oil.

Oil is better to quench in than water since the metal cools slower, less chance of the metal cracking.

There are lots of ways to do it, but this has worked for me.

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04-25-2009 06:08 AM  9 years agoPost 22
ch-47c

rrElite Veteran

san jose, ca

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Why don't you grind down the end of the shaft with a grinder or belt sander and forget the ball end, which in most applications just wears out the hex adapter.

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04-25-2009 06:10 AM  9 years agoPost 23
george0079

rrElite Veteran

USA

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the sullivan shaft is only hexed on the tip. the rest of the shaft is round

Hell... I can fix that.
Uh oh..
Nope.
It's ***ked!!!
RE-KIT!!!!!

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04-25-2009 01:20 PM  9 years agoPost 24
bclong211

rrApprentice

Columbia ,SC

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Dood you beat me to it. I was going to ask if anyone had tried hardening their shaft when they got it? I have done it with oil for all of my days for all types of applications and has always worked perfectly. Great way to prep pinions also!

I meant to do that!!!

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