John Schmidt
Member
Posts: 15325
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« on: May 24, 2017, 06:38:02 PM » |
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I'm a member of both AOPA(Aircraft Owners and Pilots Assoc. over 35 yrs.) and the EAA(Experimental Aircraft Assoc.). Both have a monthly rag which I enjoy even though I've not piloted an a/c in 20 years. The EAA has a "hints" section toward the back and one came up recently which I've used in the past so thought I'd pass it along. It involves a broken bolt, which according to Murphy's Law will break off either flush or below the surface. Since the bolts are usually broken off with a slight taper, it's difficult to drill a starter hole for an Easy Out or similar due to the bit slipping off sideways. If below the surface, here's what I've done. Find a roll pin just small enough in diameter to go in the hole without ruining the threads. Use it as a guide and run a smaller drill bit down through it to drill a starter hole for your Easy Out. It's especially valuable if the broken bolt does have a taper to it. To give credit as printed, it was written by Lee Krueger of Omro, WI, and is called ROLL PIN DRILL GUIDE in the April issue of Sport Aviation. I found out a long time ago it does work, just be careful as to the size of roll pin you use. Just thought I'd pass it on, FWIW.  |
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wiggydotcom
Member
Posts: 3387
Do Your Best and Miss the Rest!
Yorkville, Illinois
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« Reply #1 on: May 24, 2017, 07:23:47 PM » |
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That's a good tip, John. Thanks for passing it on.
Here's another one for getting out broken bolts/screws regardless if any portion is sticking up above the surface or not.
As a member of Caterpillar Maintenance for almost 40 yrs, we've used an air scriber with a fine tip(the kind they would let you use at a Police Department to etch your name on valuables) and have gotten out hundreds of screws just by digging the point in, letting it do it's vibration action...and then slowing guide it in the CCW direction.
You'd be surprised, even screws and bolts that were fairly tight will come loose and back out using this method.
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VRCC #10177 VRCCDS #239  |
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baldo
Member
Posts: 6961
Youbetcha
Cape Cod, MA
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« Reply #2 on: May 24, 2017, 11:25:07 PM » |
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I'm a member of both AOPA(Aircraft Owners and Pilots Assoc. over 35 yrs.) and the EAA(Experimental Aircraft Assoc.). Both have a monthly rag which I enjoy even though I've not piloted an a/c in 20 years. The EAA has a "hints" section toward the back and one came up recently which I've used in the past so thought I'd pass it along. It involves a broken bolt, which according to Murphy's Law will break off either flush or below the surface. Since the bolts are usually broken off with a slight taper, it's difficult to drill a starter hole for an Easy Out or similar due to the bit slipping off sideways. If below the surface, here's what I've done. Find a roll pin just small enough in diameter to go in the hole without ruining the threads. Use it as a guide and run a smaller drill bit down through it to drill a starter hole for your Easy Out. It's especially valuable if the broken bolt does have a taper to it. To give credit as printed, it was written by Lee Krueger of Omro, WI, and is called ROLL PIN DRILL GUIDE in the April issue of Sport Aviation. I found out a long time ago it does work, just be careful as to the size of roll pin you use. Just thought I'd pass it on, FWIW. That's a good tip, John. I've done something similar while doing sheet metal work on aircraft in the not too distant past. They're called drill bushings and use the same basic principle as your sorcery. I know this is not a tool that will be found in many toolboxes outside a hangar, but if you have time to purchase one and have it shipped, they're the bees knees.  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #3 on: May 25, 2017, 03:22:48 AM » |
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Yep, anything that can be used as a guide such as the roll pin works good and is a nice tip to post.
That Murphy guy really gets around doesn't he ?
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f6john
Member
Posts: 9735
Christ first and always
Richmond, Kentucky
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« Reply #4 on: May 25, 2017, 06:28:42 AM » |
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All good ideas I hope I don't need to use. I had an exhaust bolt break off flush with the surface of the head on my 95 SS. My solution which I got from the Impala bb was to take a nut the same size or slightly smaller than the broken bolt and mig weld the nut to the broken bolt through the opening of the nut. It won't be pretty or very strong but it will be enough to take a wrench and back the bolt out.
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Beardo
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« Reply #5 on: May 25, 2017, 07:23:29 AM » |
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All good ideas I hope I don't need to use. I had an exhaust bolt break off flush with the surface of the head on my 95 SS. My solution which I got from the Impala bb was to take a nut the same size or slightly smaller than the broken bolt and mig weld the nut to the broken bolt through the opening of the nut. It won't be pretty or very strong but it will be enough to take a wrench and back the bolt out.
That's exactly what I had to do to remove a broken off stud on my exhaust manifold of my truck. Tried drilling it out and using an EZ out, it snapped off in the hole. |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #6 on: May 25, 2017, 09:18:56 AM » |
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I've found over the decades there is more than one way to milk the cow. John took the time to post one such way that does work and I thank him for letting everyone know. Knowledge is power so they say. But who is they.
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John Schmidt
Member
Posts: 15325
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #7 on: May 25, 2017, 09:29:30 AM » |
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I've found over the decades there is more than one way to milk the cow. John took the time to post one such way that does work and I thank him for letting everyone know. Knowledge is power so they say. But who is they.
Patrick, speaking of milking the cow, on the farm we had to be creative during that chore. At the end of the day often spent in the fields, you still had to milk them....a tiring chore when you're bone tired. This is before a milking machine was available. My cousins and I came up with a really unique method for those "end of the day" sessions.....we taught the cows to jump up and down. That way all we had to do was hang on. Sure made things easier, and the cows got a little cardio at the same time. I used to tell my little girls that story while they sat wide-eyed, then would add if the cows jumped fast enough we had ready made butter. My wife always used to tell me I was raising damaged children.  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #8 on: May 25, 2017, 10:00:19 AM » |
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I could name a few guys I know that probably wish they had thought of that !  |
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wiggydotcom
Member
Posts: 3387
Do Your Best and Miss the Rest!
Yorkville, Illinois
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« Reply #9 on: May 25, 2017, 01:43:40 PM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
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VRCC #10177 VRCCDS #239 |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #10 on: May 25, 2017, 01:50:26 PM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
Now I'd enjoy watching you try that ! |
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wiggydotcom
Member
Posts: 3387
Do Your Best and Miss the Rest!
Yorkville, Illinois
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« Reply #11 on: May 25, 2017, 05:47:05 PM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
Now I'd enjoy watching you try that ! Reread the first 5 words of my post...  |
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VRCC #10177 VRCCDS #239 |
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The emperor has no clothes
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« Reply #12 on: May 25, 2017, 05:53:41 PM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
Now I'd enjoy watching you try that ! Reread the first 5 words of my post... Sure, they all say that.  |
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wiggydotcom
Member
Posts: 3387
Do Your Best and Miss the Rest!
Yorkville, Illinois
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« Reply #13 on: May 25, 2017, 06:05:45 PM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
Now I'd enjoy watching you try that ! Reread the first 5 words of my post... Sure, they all say that. I apologize to John for my part in taking his great thread......into the gutter.   |
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VRCC #10177 VRCCDS #239 |
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John Schmidt
Member
Posts: 15325
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #14 on: May 25, 2017, 06:26:05 PM » |
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Wiggy, not a problem....for me anyway! We're OK. |
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FryeVRCCDS0067
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« Reply #15 on: May 26, 2017, 05:34:21 AM » |
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I'm a member of both AOPA(Aircraft Owners and Pilots Assoc. over 35 yrs.) and the EAA(Experimental Aircraft Assoc.). Both have a monthly rag which I enjoy even though I've not piloted an a/c in 20 years. The EAA has a "hints" section toward the back and one came up recently which I've used in the past so thought I'd pass it along. It involves a broken bolt, which according to Murphy's Law will break off either flush or below the surface. Since the bolts are usually broken off with a slight taper, it's difficult to drill a starter hole for an Easy Out or similar due to the bit slipping off sideways. If below the surface, here's what I've done. Find a roll pin just small enough in diameter to go in the hole without ruining the threads. Use it as a guide and run a smaller drill bit down through it to drill a starter hole for your Easy Out. It's especially valuable if the broken bolt does have a taper to it. To give credit as printed, it was written by Lee Krueger of Omro, WI, and is called ROLL PIN DRILL GUIDE in the April issue of Sport Aviation. I found out a long time ago it does work, just be careful as to the size of roll pin you use. Just thought I'd pass it on, FWIW. That is a great idea. If you don't have a roll pin a center drill works great to get it started. They are too stiff to bend and will almost always start the way you want them to. Once you have a hole started, drilling it out with a left hand bit will usually unscrew the broken bolt as you drill.  |
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"Extremism in the defense of liberty is no vice. And... moderation in the pursuit of justice is no virtue.'' -- Barry Goldwater, Acceptance Speech at the Republican Convention; 1964  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #16 on: May 26, 2017, 09:44:37 AM » |
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I have no personal experience, but I hear if you hold on to a bull that same way, he'll probably jump up and down in the same manner-to help you milk him....
Now I'd enjoy watching you try that ! Reread the first 5 words of my post... Thats why I used the word 'try' instead of 'do'. |
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