Recently spilled pepsi on my macbook pro and had it cleaned and diagnosed, everything is fine except for sticky keys around where the pepsi was spilled. They are still usable and I have cleaned them with isopropyl which has helped, they are fine when I first use it, but after it heats up they become sticky again especially the space bar. In order to fix this I have been told I will need to replace the top shell, I can't afford this and was wondering if anyone else can tell me how to clean it without it costing me a fortune and taking into account that I have never taken a computer apart.