Questions tagged [repair]
Bricks and Elements sometimes break - perhaps we can help you fix them?
5
votes
1answer
139 views
Why are my pieces breaking? “3612 Arm piece straight with 2 and 3 fingers”
I've dug up my old LEGO (from 1990's) and most bricks are simply scratched and dirty.
However, the arm pieces 3612 break on touch!
Are they simply a bad, too thin, design, or is there something more ...
1
vote
2answers
60 views
EV3 brick not turning on, nothing on display?
Ev3 brick not turning on, nothing on display, just red leds are on, tried 3 buttons not working.
7
votes
3answers
700 views
Minifigure Hand broken and stuck in arm
A friend of mine gave me some of his old minifigures. As you guys can see, the hand of one of the figures is broken and a part of the hand is stuck in the arm.
Do you have any ideas how to remove the ...
3
votes
1answer
114 views
How to safely straighten 2569 Lego Antenna Whip 8H?
I have one of those, in trans-neon green, that's slightly bent. I don't want to break it or make it opaque. Is there a way to make it straight again without risk? Preferably universal way, but way ...
7
votes
1answer
148 views
Why do LEGO parts break?
I disassembled the Airplane set 7893 with normal pressure on the bricks and it happened that some parts broke like dry brittle leaves, see picture. The storage conditions have been in the open and ...
9
votes
2answers
351 views
How can I repair a red 12v train motor from Set# 7730?
I have a LEGO 7865 Red 12 volt train motor from a LEGO 7730 train set. The motor has stopped working as it has been dropped on one of the wheels.
How can I open the motor case to effect a repair?
6
votes
1answer
140 views
How to fix the 4.3V output supply of a NXT 2.0?
I have a Mindstorm NXT 2.0 from 2007 (PCB code: 62115.40H) at which the sensors except the simple "Touch sensor" are no longer working. Also the tacho-signal of the motors do no longer work. (The ...
6
votes
1answer
95 views
Lubricating 6216m2 engine
Is there any way to lubricate old 6216m2 engines (these grey round ones)? I have 2 from my childhood, and they still run, but have trouble starting and make an awful 'whining' sound from time to time. ...
3
votes
1answer
1k views
Is it possible to fix a broken EV3 Port?
I have an EV3 running RobotC version 4.55.
The medium motor connected to Port A does not run, but if I connect it to another port (B,C,or D) it works. I tested it manually through the EV3 motor tab ...
5
votes
1answer
2k views
How to open Duplo train base 2961b?
How can I open a Duplo train base 2961b without destroying it? It is not working despite fresh batteries. There are no screws.
4
votes
1answer
291 views
Is it possible to repair LEGO box creases?
Has anyone tried ironing or flattening a creased lego box to diminish the appearance of the damage?
2
votes
0answers
180 views
Unable to turn on NXT. Completely Frozen
I recently downloaded a file on my NXT and when I used it, it didn't work. The motors started to make sounds like they were jammed, one stuck and now it won't even turn on. I tried the reset button ...
2
votes
1answer
192 views
can I open/repair this pullback motor?
my son has a duplo pullback motor
this motor does not work well. after pull back it forwards 2 and a half wheel turns and stops. there is a small resistance. forcing it forward two millimeters it ...
1
vote
0answers
102 views
Does LEGO still exchange the Mindstorms NXT bricks with flicker problems? [duplicate]
I'm new here. Does LEGO still exchange the Mindstorms NXT bricks with flicker problems? If not, does anyone know of someone willing to try and fix them for a fee or barter?
5
votes
3answers
4k views
EV3 screen stuck at “Starting…”
After I turn the device on, its screen is stuck at "starting..." for a long time. It hasn't change into the regular screen, and the light behind the button was still red (didn't become green). Is ...
8
votes
4answers
674 views
How to help a yellowed brick with a sticker?
My parents recently finally decided they can return me my childhood toys with 1990s Technic sets including the 8880 Super Car. All other sets were in boxes, but this one spent the last 15+ years ...
3
votes
3answers
879 views
How can I fix my chewed up LEGO head?
When I was about 8 I used to bite down on loose LEGO heads to "fix" them. Of course after the heads "treatment" they would have chew marks around the neck.
Is there any way to make these marks less ...
10
votes
1answer
848 views
Can I safely dissassemble a 74569 motor (the old, fast 9v one)
I have an ancient 74569 motor:
Unfortunately, it's broken: The shaft spins freely by hand, but when I connect power to it, it doesn't spin at all.
I would like to see if I can just open it and place ...
4
votes
2answers
891 views
Cracked LEGO torso [duplicate]
I recently discovered that my LEGO Legolas minifig from LEGO Lord of the Rings has two small cracks starting from the base of the torso on each side, but I wonder: will these cracks extend and damage ...
4
votes
2answers
351 views
Faulty NXT Motor
I have a motor that prevents the program from running. It simply allows a few slow movements forward with stops in between. It seems very stiff to rotate manually. Any way I can repair this motor?
9
votes
1answer
777 views
How to restore old, scratched plates
I have some old lego plates that are quite scratched. They look rather dull compared to the newer pieces in my collection. Is there any way to restore (even partially) the shiny look between the studs?...
10
votes
1answer
538 views
What element is this a piece of, and how can I repair it?
Yesterday, as I was putting away some Lego, I saw the following obviously broken piece.
I couldn't figure out what element this was a piece of, so I was all ready to ask it here, when I came across ...
1
vote
1answer
332 views
Minifigure Torso Cracks
So I recently picked up the new Star Wars AT-AP and I was quite please with what I got, but after not even a week The awesome Commander Gree Figure had a torso crack that went from the bottom of the ...
11
votes
4answers
5k views
Can I repair a broken LEGO brick with glue?
I have a dump truck hinge piece that snapped in half when it got bent backwards too hard. Is there a type of glue that would be appropriate to repair the piece? Would superglue be a good choice? ...
5
votes
4answers
4k views
How do I repair loose arm joints?
The arms on my LEGO minifigures are loose. How can I repair these to remain in place when I move the arm to the location I want it to stay in?
3
votes
2answers
654 views
Is it possible to shrink down a wheel?
I have a tire 6581 which is stretched to the point it doesn't fit perfectly with the balloon designated for it, at one place it is kinda popped out. It is caused by my stretching it when I was younger ...
7
votes
2answers
8k views
How to repair cracked/peeling decals?
Does anyone have any ideas on how to repair and protect cracked/peeling decals, like these pictured in my 10019 set:
Some kind of film or lacquer?
8
votes
1answer
1k views
NXT motors not moving?
I've been looking around the net for a solution to this problem, to no avail.
After taking my NXT v1 out of storage, I tried using a motor, but it sortof just, moves back and forth once, then '...
4
votes
1answer
1k views
I need help with a broken LEGO motor
I have a LEGO motor and it broke but I didn't know why so I took apart the LEGO motor to see if the wires were the problem. I tested the wires to see if they were working but they weren't and I can't ...
6
votes
1answer
756 views
Fix for monorail sticking at monoswitch?
I recently acquired an old monorail set, and I'm having problems getting it to work properly. It works fine on normal track, and it is able to continue on or stop at a monoswitch when the switch is ...
8
votes
4answers
1k views
How to straighten 32L axles?
I have a number of the 32L technic axles, but most of them have some bend to them. Is there a straight-forward way to straighten these? Trying to bend them by hand has not seemed to change anything, ...
17
votes
5answers
7k views
Repairing Lego minifigure torso cracks/damage
I have a ton of Lego minifigures that I really put through their paces throughout my childhood (fighting pirates, exploring space... basic stuff really). A number of them are damaged on the torso. ...
9
votes
2answers
1k views
How to fix my XL motor?
I used the XL motor near water. Now it stopped working. Can someone tell me what I can do to fix it?
13
votes
2answers
2k views
Is there a way to re-tighten a minifigure's hip joint?
When a minifigure is new, the joints where its legs joins its hips is relatively stiff. However, when a minifig gets old and has been used a lot, this joint can get very loose leaving its legs very ...
16
votes
2answers
7k views
Is it possible to change the battery in a 54604 light brick?
I got 4 of these in in a bulk lot of Lego, but the lamp is getting quite dim in a couple of them.
Is it possible to change the battery in a 54604 light brick?
It looks like the brick should open, ...
13
votes
1answer
2k views
How to repair leaky pneumatics?
Some of my pneumatics parts, mostly pistons, have seals which no longer prevent the air from escaping completely. On some parts they are unreliable and on others they are not working at all.
Why do ...
15
votes
4answers
438 views
How can I fix a flattened gear?
I have an old small gear that somehow got flattened to an oval shape. The axle hole is too narrow to slide a bar through, although it is not completely closed shut.
How can I repair this gear?
15
votes
1answer
16k views
NXT screen either flickering or blank, what do I do?
The screen on my LEGO MINDSTORMS NXT brick has just stopped working. It is either flickering, or blank. I have tried turning it on and off, installed fresh batteries, and I can even hear the selection ...
7
votes
2answers
7k views
How can I get my NXT to turn on - all it does is softly click?
Recently when I plugged my NXT brick into my PC I clicked on the wrong option and now all it does is clicks when I turn it on? How do I get it back to a usable state?
12
votes
2answers
2k views
What can I do to repair my minifigures loose neck/head joint?
I have a number of loose neck joints on my minifigures. How can I repair them? Any suggestions?
