You need a shop manual on it. Get one at a parts store or MOTORLIT.COM.
A timing chain is designed to last the lifetime of the engine.
It has a timing belt ! Recommended to be replaced every 60000 miles.
Both the 2.4 liter 4 cylinder and the 3.0 liter V6 engines use a timing BELT
The water pump is located in the shroud that houses the timing belt. This is why the pump is changed when you get a new timing chain.
Timing Chain
For a 2009 Mitsubishi Lancer ( 2.0 and 2.4 liter four cylinder engines ) ( timing CHAIN )
timing belt
A Mitsubishi Mirage has a timing belt
Timing belt
It has a timing belt.
timing chain
The Mitsubishi Canter 4M51 engine does not have a timing belt or chain.