Originally Posted by JohnZo

That's a bit low. I guess I would try a spoonful of engine oil in each cylinder to get the pressure up. The water likely washed out the oil on the rings. After that I would check that the injectors are actually firing.

So what path do you think the water took to get into the cylinders? Exhaust or Intake?

Originally Posted by robertf

that low compression on all cylinders sounds like a worn out timing chain

was the gas tank underwater too?