If the belt breaks into little pieces, the debris and rubber particles will collect inside the timing cover only, not damaging anything internally in the actual engine. I've seen and done enough timing belts on non interference engines that break or shred, and only replace the belt along with the water pump, cam and crank seals while you're in there. If I were a Toyota owner, I would be more concerned about the late 90s-mid 2000s engine sludge problem.
13th Nov 2020, 19:32
If the belt breaks into little pieces, the debris and rubber particles will collect inside the timing cover only, not damaging anything internally in the actual engine. I've seen and done enough timing belts on non interference engines that break or shred, and only replace the belt along with the water pump, cam and crank seals while you're in there. If I were a Toyota owner, I would be more concerned about the late 90s-mid 2000s engine sludge problem.