SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: seapat on May 31, 2015, 10:33:30 PM
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I was trying to be very patient. Sprayed with wd 40, then used liquid wrench, taped on it, let it soak. Sprayed again waited. Decided to add heat with, twisted Allen then stripped it. Trying to drill it out with cordless not working very well. Don't have drill press. If and when I do get the set screw drilled out what size is the set screw? I think I'm screwed literally might need help. lol
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I was trying to be very patient. Sprayed with wd 40, then used liquid wrench, taped on it, let it soak. Sprayed again waited. Decided to add heat with, twisted Allen then stripped it. Trying to drill it out with cordless not working very well. Don't have drill press. If and when I do get the set screw drilled out what size is the set screw? I think I'm screwed literally might need help. lol
Sometimes you need to cut your losses... Allen set screws are hardened. Pretty tough to drill. You may need a cobalt bit.
I have fought these before, they can be a real PITA. Once they are all broken up, it's drill time.
GT
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Trying to post pictures from my phone
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Set screwed
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Can you get an easy out to bite into it? I normally heat the aluminum around the screw with a propane torch and then they come right out.
If not a reverse drill bit might be the way to go.
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Heat. Then hammer a Torx bit into it if its rounded.
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Thread size is 1/4-20, you can Helicoil it or just tap it out to 5/16-18. If you go with the 5/16 size, then put a small point on the tip of the screw so it will go into the slot. We use stainless steel fasteners and always put a little Anti Seize on the threads before tightening. That way you can remove it when required. TIMINATOR
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Ok finally got the bitch out. It took hours. Drilling, heat, easy out, over and over.There is only 2 two tiny threads left. Should I put in a helli coil next size down so it will still fit in slot. It seams like the 1/4 set screw is big for the slot in the first place. First time changing throttle cable. Thank you for everyone's help.
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I'm in the process of doing the same thing. I actually drilled all the way through the cable and the pedal on the other side oops. Good thing is I'll be doing what the threads above say. Tapping to the next size up. It took me about 30 seconds to drill it out and when my lazy ass puts this beer down I'm thinking 5 minutes to tap it out and put in the "double" set screw setup.
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The slot is tiny. 1/8 in. 1/4 set screw already seams big. You would have to grind on the 5/16 quite about to make it fit the slot. Then again might be easier than going and buying helicoil kit?
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I'm definitely not the expert but the next size up in the tap and die kit (9 bucks, harbor freight) I bought says 10-24. It seems like it would tap it out just slightly larger perfectly but I'm not sure if that's metric or...
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10-24 is two sizes smaller. #10 screw with 24 threads per inch
Equivalent to a 3/16 coarse thread screw
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Next size up is 5/16, I just bought same one today anticipating, chasing the threads. Sae
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Thanks for the heads up. Maybe my set screw is smaller. I can only get the 10-24 tap in to the first two threads so it seems like it would be a good fit. Regardless it's soft aluminum So im assuming tapping it the easier route. Then I'll have a tap and die set in the tool box.
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The tap drill size for a 5/16-18UNC is a letter F drill which is .257"
I would shoot through it with a 1/4" drill bit and tap it 5/16-18.
Install this http://www.mcmaster.com/#92845a175/=xfyknq
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The tap drill size for a 5/16-18UNC is a letter F drill which is .257"
I would shoot through it with a 1/4" drill bit and tap it 5/16-18.
Install this http://www.mcmaster.com/#92845a175/=xfyknq
Disregard that part, they are $4.52 each.
A standard stainless set screw with anti-seize would work best.
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That would work perfect and go into the slot, but expensive. The stainless set screws are .98 cents at home depot. I don't like grinding on such a tiny piece. I guess that's what gloves and vice grips are for. Thanks Flusher.
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...I guess that's what gloves and vice grips are for. Thanks Flusher.
NEVER WEAR GLOVES WHILE MACHINING!!!
The glove could get snagged and pull your hand into the machine!
No jewelry
No watches
No long sleeves or baggy clothes
Tie long hair back and tuck inside shirt
Work safe!
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NEVER WEAR GLOVES WHILE MACHINING!!!
The glove could get snagged and pull your hand into the machine!
No jewelry
No watches
No long sleeves or baggy clothes
Tie long hair back and tuck inside shirt
Work safe!
X2...
I have a glove story, a long hair story, a "safety vest" story, a hoodie story, a wedding ring story and a shoe lace story, let's just say, none of them ended well...
GT
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$ 4.52 sounds pretty cheap, compared to getting hurt. I only have angle grinder. I Just taped it out to 5/16.
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Im sorry, I didn't mean to make it sound like that.
I wouldn't be any help if I cost you a limb.
28 years in a machine shop, I am proud to still have all my fingers and finger nails.
One friend of mine got his hair caught in the lead screw on a lathe and it ripped his scalp off.
Guy I worked with reached over a running horizontal boring mill. His jacket sleeve got caught and his right arm was ripped out of his body, from his neck to his ribs.
Guy in the shop behind mine got his shirt caught in a fly cutter on a vertical mill and it killed him.
Guy at my friends company was polishing a part on a lathe, using emery tape. Company had recently required to use of cut resistant Kevlar gloves. He couldn't let go fast enough when the emery tape wound up, grabbing the glove, pulling his hand in and pulverizing every bone before the hand came out of the glove. The company now has a new policy on wearing gloves around machinery.
Be safe,
Joe
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X2 on the gloves. I work in the safety industry and I've seen my share of horror stories. You shouldn't be doing a heavy machining with higher speed spinning things so you should be good pretty safe gloveless. Remember eye protection though. I'm gonna tap mine tomorrow so I'll we watching this thread...
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Im sorry, I didn't mean to make it sound like that.
I wouldn't be any help if I cost you a limb.
28 years in a machine shop, I am proud to still have all my fingers and finger nails.
One friend of mine got his hair caught in the lead screw on a lathe and it ripped his scalp off.
Guy I worked with reached over a running horizontal boring mill. His jacket sleeve got caught and his right arm was ripped out of his body, from his neck to his ribs.
Guy in the shop behind mine got his shirt caught in a fly cutter on a vertical mill and it killed him.
Guy at my friends company was polishing a part on a lathe, using emery tape. Company had recently required to use of cut resistant Kevlar gloves. He couldn't let go fast enough when the emery tape wound up, grabbing the glove, pulling his hand in and pulverizing every bone before the hand came out of the glove. The company now has a new policy on wearing gloves around machinery.
Be safe,
Joe
Joe,
We live in a parallel universe...
GT
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X2...
I have a glove story, a long hair story, a "safety vest" story, a hoodie story, a wedding ring story and a shoe lace story, let's just say, none of them ended well...
GT
I try to keep it brutal, Red Asphalt style.
I have been really lucky, 10 years teaching machine shop and no serious injuries. In fact, I am the only instructor who doesn't have one.
My wife is beside herself about the wedding ring thing, but she deals with it.
Sorry for graphic violence.
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Joe,
We live in a parallel universe...
GT
No hoodies in my multiverse
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I try to keep it brutal, Red Asphalt style.
I have been really lucky, 10 years teaching machine shop and no serious injuries. In fact, I am the only instructor who doesn't have one.
My wife is beside herself about the wedding ring thing, but she deals with it.
Sorry for graphic violence.
Not so much graphic, at least to me. More of a "keep ya kn your toes and stay safe".
I worked with a guy who came to us from Boeing as a CNC tube bender. I always gave him crap for being too comfortable. He'd load a tube in the bender and turn away as the machine would clamp up, and still have his hand in the mix. Saw him a few years back, needless to say he was missing two fingers ..
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If you need to grind the end of a small set screw or socket head cap screw, place it on the end of an Allan wrench. Be careful not to allow it to become lodged between the tool rest and the wheel.
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No hoodies in my multiverse
The hoodie story is the best one....
So this dude was being a mamby pamby and took off his hard hat and pulled the hoodie over his ears and got clocked it the head with a 400 HP motor swinging from a crane hook, it knocked him out cold and he fell into the roof cutout we were rigging the motor into and wend down 25' and landed on his left side, breaking six ribs, a clavicle, his jaw and his arm in three places... He didn't feel cold though...
He decided to change professions. I think he does storefront window painting now.... Like Santa and crap....
GT
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The hoodie story is the best one....
So this dude was being a mamby pamby and took off his hard hat and pulled the hoodie over his ears and got clocked it the head with a 400 HP motor swinging from a crane hook, it knocked him out cold and he fell into the roof cutout we were rigging the motor into and wend down 25' and landed on his left side, breaking six ribs, a clavicle, his jaw and his arm in three places... He didn't feel cold though...
He decided to change professions. I think he does storefront window painting now.... Like Santa and crap....
GT
That fool is lucky to be alive!
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That fool is lucky to be alive!
We thought he was dead...
GT
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Disregard that part, they are $4.52 each.
A standard stainless set screw with anti-seize would work best.
Flusher besides this being the wrong size. 3/8. What was the reason to disregard? I think this one will work better.
http://www.mcmaster.com/#92845a167/=xfzvhs (http://www.mcmaster.com/#92845a167/=xfzvhs)
Also for safe grinding practice, you said to hold with allen wrench. This does not sound very secure unless you wrap tape?
I need to order my cable. I can order set screw too. or just grind it and be safe. :-\
Thanks again
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Flusher besides this being the wrong size. 3/8. What was the reason to disregard? I think this one will work better.
http://www.mcmaster.com/#92845a167/=xfzvhs (http://www.mcmaster.com/#92845a167/=xfzvhs)
Also for safe grinding practice, you said to hold with allen wrench. This does not sound very secure unless you wrap tape?
I need to order my cable. I can order set screw too. or just grind it and be safe. :-\
Thanks again
In my haste, I clicked on the wrong link. I should be working and not F'n off. Sometimes my cell phone has issues with the McMaster Carr site and my fat fingers.
The part you posted is correct.
For now, I am going to say, I can not describe my technique. You also need to dress the end of the thread or it won't start in and/or damage your new threads.
Honestly, I would leave it long. It won't hurt anything.