The belt that you refer to is a self adjusting steel belt that is inside the engine. It does not need replacement.
Your Toyota Previa has a chain and not a belt the should last the life of the engine and does not normally need replacing.
i need to see the chart on how the belt gose on my supercharger
How often do you need to change the cam belt on an Astre 1.6 club 2000 plate
I think that you never need it. Because , it has no belt, it has chain instead.
The 1994 Mercury Topaz has a chain and not a belt.
You should change the belt when it is about to wear out, which a mechanic should be able to tell you when you need to, or you can also change it more often to make sure you wont need to.
Every 60,000 miles.
every 100k mate
Every 60,000 miles.
About every 60.000 miles
There is no timing belt. It is a chain driven cam and there is no change interval. They get changed when the engine is overhauled.
03 camry 4 cylider has a timing chain a 03 v6 camry hmilesas a belt and you change it every 90,000