when it doesnt work
Mitsubishi says every 60,000 miles it should be replaced.
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.
were are the timing marks at
65000 miles
yes
90k
you die
in answer to your question the timing belt should be changed every 55/60 thousand miles
A timing chain is designed to last the lifetime of the engine.
Each 60K miles.
It has a timing belt ! Recommended to be replaced every 60000 miles.