To solve the mission, go to YouTube and type in Club Penguin Mission.... They will teach you exactly how to solve the mission and get extra rewards... Hope that helps... :)
In EPF Mission 8, the gear is inside Herbert's drill.
In the mission, take it from Rookie who is in the town.
Restore the missing clock tower gear
find a gear that is ice
you don't you right it on a peice of paper
You have to get the Clock Tower prime gear, and return it to G. It is a wheel, from the mission Clock Work Repairs, the gear that goes in the middle.
make it make the gear!
Get the flyer from Rookie in the town.
the prime gear is what keeps the penguin standard time clock running
In The Missing Gear, you have to put the frozen spring in the Tester, which is in the Gadget Room. Then, click the Fire picture on the Tester in the Gadget Room, and then it will melt.
Rookie has it in the town.
give it to Gary