Timing chains are designed to last the life of the engine unlike timing belts.
Chain
I was looking at a drawing on one of the Ford websites and it shows for a 2010 Ford Taurus 3.5L V6 engine : There is ( 1 primary chain ) that goes to each cylinder head and each of the ( 2 cylinder heads has a short timing chain that connects the two over head camshafts ) So , all together ( 3 timing CHAINS are used )
The V6 has a timing belt that MUST be changed every 105,000 miles.
timing chain....
Timing chain
It has a timing chain.
It has a timing chain.
Timing chains are designed to last the life of the engine.
chain
Chain
Timing Chain
It has a timing chain.