you just need 1 liter petrol in a plastic bottle with a tiny hole on its cap,a toothbrush and some Vim mixed with water in shower and some pieces of cloth.And alot of stamina.
Step by Step procedure:
Throw water on engine with pressure.
Dry it using cloth.
Throw petrol on greased parts.
Start rubbing with toothbrush(also throw petrol while doing this)
Tie a piece of cloth on your fingers of your hand and again start rubbing.
Shower vim mixture.
Wash engine bay with water.
Dry it using a clean cloth.
Now if you want to make it Lush Push apply some polish on body parts and Luster on Plastic.
you are done. 
Note:Be careful with wiring,Rub gently,Try to cover distributer with a plastic bag.!
Example,Engine bay of my Cultus 2002 model.