How does Toyota offer non-interference engines and seemingly no other manufacturer does? Contemporary Toyota 4-bangers don't even have a timing belt service interval for normal duty. I think it's 90K miles for severe duty, whatever that is for a timing belt. So you putter along, the engine quits, the car is towed to any shop, $300 later you're on your way with a new belt. Same thing you'd pay to have it replaced before it snaps. If the belt snaps on any other car you're out a cylinder head and possibly an engine.

It's only geometry - why hasn't this caught on throughout the industry? Does Toyota have a patent?

Sixto
87 300D