In message , The Other Mike
writes
On Tue, 1 May 2012 16:21:21 +0100, hugh ] wrote:

If the engine stops DO
check the exhaust is not under water before you try to restart - other
wise you will hydraulic the engine.

air comes in 'suck squeeze bang blow' combustion products are then
forced out of the exhaust

That's when the engine is running.
Engines don't suck air through the exhaust. Even if the exhaust is
flooded the engine will not hydraulic, it might not start but it will
certainly not hydraulic.


Standard part of MOD ( and other) off-road training. Happened to my
mate's Land Rover.
Suggest you go and try it.
--
hugh