I know the 1st generation xB's (04-06) have the 1.5L 1NZ-FE Toyota engines and use a timing chain. I'm not sure about the engines on the second generation.
Timing chain
Timing chain.
It must have a timing CHAIN ( The Gates website does not list a timing belt for the 1.5 liter , 4 cylinder engine in a 2005 Scion XB )
No t-belt on that puppy. Internal Timing Chain.
its a chain, and a non-interference (free spinning) engine. which means, in case of a timing chain failure, the valves will clear the pistons and there will be no engine damage
Scion xB was created in 2003.
The 2010 Scion xB has 16 valves.
The 2004 Scion xB has 16 valves.
The 2014 Scion xB has 16 valves.
The 2006 Scion xB has 16 valves.
The 2011 Scion xB has 16 valves.
The 2012 Scion xB has 16 valves.