Bad Timing Chain How To Tell Timing Belt or Chain is Jumped

Key signs a timing belt or chain might be jumped:
Engine won’t start: This is the most obvious sign, as a severely jumped belt or chain can prevent the engine from firing properly.

 Bad Timing Belt or Timing Chain symptoms

Rough idling or misfires: The engine may run unevenly or intermittently due to incorrect valve timing.

Loss of power: You might notice a significant decrease in engine power when accelerating.

Ticking or rattling noises: A worn or stretched timing chain can produce noticeable rattling sounds, while a failing belt might make ticking noises.

Check engine light: The engine control module may detect the timing issue and illuminate the check engine light.

Excessive exhaust smoke: In some cases, a jumped timing belt can cause increased exhaust fumes

bad fire: un burned gases  due to misfire / mis timing

Tensioner springloaded / hydraulic.

Bad water / coolant pump

Not starting: broke volves in the cylinders

Late spark:

Oil leak from the head of engine: timing chain may steches the seals or gaskets can lead to lean engine oil or gsket weaout /overheat.

Metal shvaing in the oil:

 

detector to use air / fuel ratio