If the timing chain breaks, the chances are the engine would most likely be seized. The top part of engine would not turn and if you can see the valve trains from the oil filler cap, cranking the engine would allow you to see if they are working. Other than that you would have to at least remove the valve cover or perform a compression test.
Have you checked for sparks?
Sunday, October 28th, 2012 AT 3:04 PM