The old Corollas in the 70s and 80s had timing chains. In the 90s, Honda, Toyota, and even Nissan started making belt-driven cranks instead of chains. Now they are back to timing chains. What happened?
In: Engineering
It’s all in the actual engineering and execution but chains are generally more reliable and cheaper to maintain. Belts are cheaper engineering. The engines are easier to design and manufacture but more work for the customer. There’s fewer oil passages on the gear drive side of the engine in belt designs but they leak just the same. Glad Honda went to chains mostly years ago. Even Ferrari dumped belts on their V8 from the 430 and their V12 from the Enzo and 599.
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