changed to upper subframe bolt rant
Posted: Sun Dec 22, 2013 7:10 pm
Murphy is a close personal friend of mine and, in fact, lives next door. We even exchange gifts each year…. Project - Drill out upper subframe and replace with one continuous bolt Resource - Kit from Eagle MikeChallenge - one bolt head already sheared off So, I’m down in the garage, working on the bike by drilling out the remnants of the stock bolt that held the upper frame together on the port side. Flashbacks of the movie Armaggedon w/Bruce Willis et al where they are trying to drill through solid iron core to save the earth plague me. “Aha success!”, after three drill bits, I finally have a hole drilled. Brand new DeWalt ‘ drill just bought for this project comes through and we’re in. So, in goes the extractor bit. No problem here – dang can’t find the stupid T-handle for extractor bits. But hey, I use that thing so infrequently, I’m not surprised it’s gone. I may have loaned it out, left it somewhere, rat may have walked off with it - who knows…. But the end of the extractor is a square end so I can get something on it – or I’ll just go get another handle – but those handles really don’t provide much grip or leverage anyway. So, ever so carefully I am trying to unscrew the bolt with the extractor. I am using a crescent wrench (the jaws go to 0) to turn the extractor. When suddenly, “sproing”… the extractor is now broken off in the hole drilled. “Hey Murph – Merry Christmas – Thanks!!” So open to suggestions to get an extractor out or drill through it or burn the bike to the ground and say “to Hell with it…” I’ve been able to drill through from the other side with Eagle Mike’s “warm-up” bit. I just don’t see going through all that solid steel with anything short of a laser. [b][i]Stu[/i][/b][b][i]o&>o[/i][/b][b] ~~~~~[/b][b][i]/)[/i][/b][b]~~~~~[/b]
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What shape of easy-out have you used? If a square tapered one, they can sometimes be worked out but if a spiral, that's more fun. I have carbide drill bits (Garr 1500 series) which will drill holes in a file or easy-out so might consider that if a round one. If you have oxy-acetylene, use a small tip, crank the oxygen pressure up quite high, adjust to a neutral flame and heat the extractor to red. When it's red, crank the oxygen knob open and the extractor will burn to nothing in a second. Likely, the wrench encouraged just enough bending in addition to turning to snap the extractor. Another is to tack a rod onto the extractor which will loosen the extractor, then use the rod to slide hammer the extractor out. A couple of light taps is all which is usually needed. Drilling from the other side and using a punch is a certain method.... Otherwise you might try butane or propane to see if you can get the extractor hot enough (red) to draw the temper then use conventional drill bit and lots of lube to drill out. If it's a square or spiral square, you might be lucky but if one of the round ones with fine splines, "rots-a-ruck" unless you have oxy. Then, may as well burn it out. This is the subframe bolt right? If so, why not drill through and install a through bolt? That used to be the formula but maybe the thinking has changed? Keeping fingers crossed on your behalf. Wish you were closer as would like to offer some help. Norm Stu posted: "Murphy is a close personal friend of mine and, in fact, lives next door.
We even exchange gifts each year .
Project - Drill out upper sub frame and replace with one continuous bolt
Resource - Kit from Eagle Mike
Challenge - one bolt head already sheared off
So, I m down in the garage, working on the bike by drilling out the remnants
of the stock bolt that held the upper frame together on the port side.
Flashbacks of the movie Armaggedon w/Bruce Willis et al where they are
trying to drill through solid iron core to save the earth plague me. Aha
success! , after three drill bits, I finally have a hole drilled. Brand
new DeWalt drill just bought for this project comes through and we re
in.
So, in goes the extractor bit. No problem here dang can t find the stupid
T-handle for extractor bits. But hey, I use that thing so infrequently, I m
not surprised it s gone. I may have loaned it out, left it somewhere, rat
may have walked off with it - who knows . But the end of the extractor is
a square end so I can get something on it or I ll just go get another
handle but those handles really don t provide much grip or leverage
anyway.
So, ever so carefully I am trying to unscrew the bolt with the extractor. I
am using a crescent wrench (the jaws go to 0) to turn the extractor. When
suddenly, sproing the extractor is now broken off in the hole drilled.
Hey Murph Merry Christmas Thanks!!
So open to suggestions to get an extractor out or drill through it or burn
the bike to the ground and say to Hell with it
I ve been able to drill through from the other side with Eagle Mike s
warm-up bit. I just don t see going through all that solid steel with
anything short of a laser.
Stu
o&>o
~~~~~/)~~~~~
---"
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