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Some engine's are interference engine's which can cause damage to valves. That's why manufacturers have maintenance schedules to prevent future problems but moving parts can break outta schedule. If your mechanically inclined it's very easy to change a timing belt. YouTube videos are available to watch on YouTube. I recommend watching Richpen06
That Can Only Be Determined After Replacing the Timing Belt Or Removing the Head, It has Been MY Experience that About 20% DO Have Valve Damage. This is Aftet MY 30 Years As A Mech/Tech. I Normaly Advise Customer Of the Chances And R&R Timing Belt and as I Say Toyota Is Better than Honda About NOT Tapping Valves when jumping Time.
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1993 Toyota 2.2 you have valve clearance,meaning if you broke the belt driving you just broke a belt and NO VALVE DAMAGE. On the cam gear line that dot on top with the mark at the top if the cylinder head it a little dipple.As for the crank just line up the dots.There is nothing confusing turn one at a time or both at a time.
that is an interference engine, so if it was running when it broke, chances are very good that the valves are bent, at least-in worst case situations, pistons can be damaged too, but I would have the head removed and have the valves redone-while off, the top of the engine can be checked out. Timing bests are supposed to be replaced every 60,000 miles.
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