Stuck pinion set screw
03-25-2013, 05:35 AM
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Stuck pinion set screw
I am trying to change the pinion on my LX2e froma 14t to a 16t, and I cannot get the set screw off for the life of me! I have stripped many hex wrenches, even new ones in the process of trying to get it loose. I was thinking of just trying to slide it off the motor shaft carefully, but wasn't sure if I should. I did this once before and it worked great, but that was on a $15 Titan 550 motor. Any tips or recommendations on what I can do?
03-25-2013, 05:44 AM
#2
RE: Stuck pinion set screw
get yourself a pinion gear puller, it can pull it off while supporting the shaft
ive got one of these and I can say it works a treat
[link=http://www.ebay.com.au/itm/PINION-GEAR-PULLER-FOR-UP-TO-5MM-MOTOR-SHAFTS-RC-Helicopter-Worldwide-Free-Ship-/180844894538?pt=AU_Toys_Hobbies_Radio_Controlled_V ehicles&hash=item2a1b32194a]ebay[/link]
ive got one of these and I can say it works a treat
[link=http://www.ebay.com.au/itm/PINION-GEAR-PULLER-FOR-UP-TO-5MM-MOTOR-SHAFTS-RC-Helicopter-Worldwide-Free-Ship-/180844894538?pt=AU_Toys_Hobbies_Radio_Controlled_V ehicles&hash=item2a1b32194a]ebay[/link]
03-25-2013, 06:31 AM
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RE: Stuck pinion set screw
It may have thread-locker on it. A small amount of heat will help. Not a lot as you don't want to ruin anything. 3 to 5 seconds with a small butane torch should be all it needs to soften the thread-locker.
Also, I use a hex-bit with a 1/4" drive socket wrench for better leverage and a stronger/better grip in the screw.
Also, I use a hex-bit with a 1/4" drive socket wrench for better leverage and a stronger/better grip in the screw.
03-25-2013, 06:59 AM
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RE: Stuck pinion set screw
Well I'm pretty sure it has thread locker on it since it is straight from the factory and has never been taken off. The problem is, is that even if the thread locker does come loose, I doubt my hex wrenches will grab the set screw. If I cannot get it off by applying some heat, I may just try sliding it off with a pair of pliers. I know it will take some grunt though.
03-25-2013, 07:16 AM
#6
RE: Stuck pinion set screw
if you don't mind writing the pinion off you can take a dremel and put a small notch on the set screw. then use a flat head screwdriver and get it out and of course don't make it to deep
03-25-2013, 07:27 AM
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RE: Stuck pinion set screw
Don't have a dremel lol. I did some research and read up on the ways to remove it. You guys mentioned all but using a pair of wire cutters to pry it off, using the bellhousing as leverage. Although I will try heating the pinion to loosen the thread locker first.
03-25-2013, 08:28 AM
#9
RE: Stuck pinion set screw
Do yourself a favor and get a good set of hex wrenches. They'll stop most of the stripped hex screw problem. Those L hex wrenches are usually junk. Too soft.
03-25-2013, 08:33 AM
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RE: Stuck pinion set screw
ORIGINAL: cumminspower5.9
Don't have a dremel lol. I did some research and read up on the ways to remove it. You guys mentioned all but using a pair of wire cutters to pry it off, using the bellhousing as leverage. Although I will try heating the pinion to loosen the thread locker first.
Don't have a dremel lol. I did some research and read up on the ways to remove it. You guys mentioned all but using a pair of wire cutters to pry it off, using the bellhousing as leverage. Although I will try heating the pinion to loosen the thread locker first.
03-25-2013, 09:13 AM
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RE: Stuck pinion set screw
Well, without a Dremel, pinion puller, or an expensive set of allen tools, The only thing left is to heat the pinion and set screw, and jump right in to loosening the set screw. Hopefully this will work. If not, I will have to see what my dadhas for tools, see if I can rig up a puller or something.
03-25-2013, 09:33 AM
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RE: Stuck pinion set screw
Drilling it out is an option, but I don't want to risk damaging the motor shaft. But is is a considerable action. But on the otherhand, If i want to use the 14t pinion again, I cant
03-25-2013, 10:00 AM
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RE: Stuck pinion set screw
Saw this after replied to your pm. Pry it off and then later dremel a groove in the set screw to get it out, when you either have a dremel or can get someone else to do it for you.
03-25-2013, 10:56 AM
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RE: Stuck pinion set screw
I think that's the only way to deal with it right now with the tools I have. Heat it up and see if it will loosen. If not pry it off! I've done it before, and never damaged the motor or shaft, just have to be careful. I need more hobby specific tools lol
03-25-2013, 12:47 PM
#17
RE: Stuck pinion set screw
Here's a good quality pinion removal tool for little money,
http://www.hobbyking.com/hobbyking/s...arehouse_.html
I broke a 5mm motor shaft right where it exits the motor while prying off a stuck pinion had it almost half way off with a pair of pliers prying off the motor mount then snap,
The motor shafts take NO side force and can snap easily.
http://www.hobbyking.com/hobbyking/s...arehouse_.html
I broke a 5mm motor shaft right where it exits the motor while prying off a stuck pinion had it almost half way off with a pair of pliers prying off the motor mount then snap,
The motor shafts take NO side force and can snap easily.
03-25-2013, 02:18 PM
#18
RE: Stuck pinion set screw
so let me guess this right, u want to remove the pinion, but dont want to buy anything, u are happy to try and rip the pinion off the shaft but not drilling it out?????
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
"Sometimes you need to spend a little to get something done right"
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
"Sometimes you need to spend a little to get something done right"
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
03-26-2013, 04:03 AM
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RE: Stuck pinion set screw
ORIGINAL: phmaximus
so let me guess this right, u want to remove the pinion, but dont want to buy anything, u are happy to try and rip the pinion off the shaft but not drilling it out?????
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
"Sometimes you need to spend a little to get something done right"
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
so let me guess this right, u want to remove the pinion, but dont want to buy anything, u are happy to try and rip the pinion off the shaft but not drilling it out?????
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
"Sometimes you need to spend a little to get something done right"
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
03-26-2013, 04:47 AM
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RE: Stuck pinion set screw
ORIGINAL: cumminspower5.9
I know it sounds ridiculous, and makes me look like a cheapy. But usually I find good methods of doing things that don't cost me money. I like your idea of clamping the pinion in a vice and punching out the shaft. I will definitely try that if heat doesn't work. drilling would be my last option as I may want to use stock pinion at some point.
ORIGINAL: phmaximus
so let me guess this right, u want to remove the pinion, but dont want to buy anything, u are happy to try and rip the pinion off the shaft but not drilling it out?????
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
''Sometimes you need to spend a little to get something done right''
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
so let me guess this right, u want to remove the pinion, but dont want to buy anything, u are happy to try and rip the pinion off the shaft but not drilling it out?????
Applying excessive laterial pressure to the motor shaft isgoing to do more damage to the motor than drilling out the screw. My tip is if u drill out the screw, stop before u hit the motor shaft. Then u dont have to worry about damaging it.
I agree with The Mad Modder
''Sometimes you need to spend a little to get something done right''
here is a nother method.......
clamp the pinion in a vice, use a 2mm centre punch and hammer to back out the shaft from the pinion.
u have a vice, centre punch and a hammer right?
03-26-2013, 06:23 AM
#22
RE: Stuck pinion set screw
could probably buy a cheap hacksaw (under $5 from most stores home improvement stores) to cut the notch instead of a dremel if you are really hard up on cash. it SHOULD work
03-26-2013, 07:00 AM
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RE: Stuck pinion set screw
ORIGINAL: on_your_six
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.
03-26-2013, 07:29 AM
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RE: Stuck pinion set screw
ORIGINAL: on_your_six
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.
Morons....trolling the internet since the 1960's
03-26-2013, 07:41 AM
#25
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RE: Stuck pinion set screw
Sometimes you just have to say it straight up. Now the OP knows the heat trick to free up a set screw. I use an electrical soldering iron. Once you have rounded off the set screw.. there is not much you can do about it. Cutting a slot would be very hard to do and not much metal to work with. I used that slotting trick just last week on a servo screw... if it won't budge... use some heat to free it up. The new pinion is not that much, but if you yank and pull on the rotor, you may end up replacing the motor too!
ORIGINAL: redfisher1974
Funny, But harsh...
ORIGINAL: on_your_six
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.
The stock pinion is toast... drill it and forget it... you can always buy another pinion.. oh wait a minute.. you don't want to spend anything... never mind ignore.