Hi,
Bought a nice lot yesterday with some interesting technic parts. My five year old started building right away and was very interested in the pneumatic cylinders that were in there. But as it goes with five year olds, he was also a little too excited with pumping away the cylinder and that resulted in the seperation of the piston and the cylinder. It does not look to be broken off, but I'm not sure if it's fixable or not. I want to try to repare it, but I don't know how to open it. I've seen some posts about opening the cylinder but they are always the later versions. This is the red one which was only in one set: 8040 building set. (part number 4688c01) Does anyone have some tips about opening it and if it's reparable or not?
Thanks!