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its best not to take the chance as engine could of been scimed years ago. and it will take out the valves more if it has. even in a non interference engine it will cause a lot of damage if going above 2.000 revs.
most modern engines are interference designed. keeps the engine profile smaller for fitment in the engine bay. I have successfully straightened valves on a 2.7 V6 honda engine that snapped the cambelt. Just revved the heck out of it once the new belt was on. All ok afterwards. Did you shut down as soon as the belt jumped the cog ?
I assume it's your timing belt, not a chain, which rarely, if ever snap. Depending on the make of the car and the engine you may, or may not, have serious engine damage.. DO NOT ATTEMPT to start the car, have it towed to your shop of choice. If there is no engine damage a timing belt replacement generally will run you 2 or 3 hundred bucks...if you did serious engine damage you may have to decide if the car if worth the money to have it repaired. What you need to know is whether your car has an "interference" or "non-interference" type engine.. In an interference type engine if the timing belt breaks the valves will "interfere" with the pistons as they travel up if the timing belt breaks, which results in generally catastrophic engine failure.. non-interference engines generally suffer little or no engine damage with a broken timing belt.. I broke a timing belt on my 1990 Toyota Supra going 70mph, but it was a non-interference engine and after having the belt replaced it was fine.. here is a good list someone put together on what type of engine is in your car.. you should find the engine type either marked on the engine or on a label under the hood, or the owners manual.. good luck. http://yourcarangel.com/2014/07/interference-engines-complete-list/
The water pump is driven by the cam belt and on some vehicles with an interference engine if the water pump failed and cause the cam belt to break then it could cause internal engine damage. Your 1997 Rav4 water pump is driven by the cam belt but is not an interference engine. So, not to worry as no damage has been done. Just replace the water pump and cam belt and all should be well.
If you 2000 Dodge Stratus is equipped with either the 2.0 Liter (SOHC) 4 cylinder engine or the 2.5 Liter (SOHC) V6 then you have serious engine damage. Both these engines are interference engines. When the belt breaks the pistons will make contact with the valves thus causing damage. The belt on the 4 cylinder should have been replaced at 100,000 miles. The belt on the V6 should have been replaced at 60,00 miles. At 60 mph you for sure are going to have some damage. How much damage, you will know when they open it up.
The maintenance interval is 60,000 miles, but they usally last quite a bit longer before they fail.
This is a non-interference motor , meaning the valves will not hit the pistons if the belt brakes.
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