cam chain
It uses a cam chain.
Never as it does not have a cam belt. The cam is driven by a chain that normally will last the life of the engine and requires no maintenance.
Cam chain
It will never break. Reason being is that the 2005 Ford Focus has a cam chain and not a belt. The cam chain is designed to last the life of the engine.
it has a chain
You don't as it has no cam belt. The cam is driven by a chain which normally will last the life of the engine.
Cam Chain.....
Timing belt/chain or cam belt/chain
Why are you replacing the cam chain on a 2.4 Liter Honda? They will normally last the life of the engine.
The cam chain will last the life of the engine and need not be replaced until the engine is overhauled.
if its a single overhead cam it has a belt and if its dual it has a chain