DEEP WATER
If you determine
it is safe to go on, proceed slowly and avoid making large waves in the
water. In a manual transmission car, engage first gear and keep the engine
running fast by releasing the clutch enough to partially engage gear and
giving more acceleration than usual. The fast-moving exhaust gases prevent
water from entering the tailpipe. In cars with automatic transmission, engage
first gear and feather the brake, slowing the vehicle while keeping engine
revs up at the same time. But doing this for more than a few seconds can
seriously damage the engine. If submerged too deep, the engine will stall
and water will enter through the air intake, causing a condition called
engine hydro-lock, forcing the car to stop.
What should you do if stalled in deep water? If possible, have someone
tow your car out. A car with a manual transmission can be driven out using
the starter motor. The job is made easier by removing the spark plugs,
thereby lowering compression and allowing the starter to crank easily.
Try not to let water enter the cylinders as it can lock the engine, ruining
it. This is a last resort for rescuing a car stranded in a flood and is
not recommended. |
July 2001
