Engine Flushing - Evinrude E-Tec 40 HP Service Manual

Engine Flushing

Flush the outboard with fresh water following each
use in brackish, salt, or polluted water to minimize
the accumulation of scale and silt deposits in cool-
ing system passages.
The outb oard can b e flu shed on th e trailer o r at
dockside; running or not running.
The outbo ard mu st be lo cated in
IMPORTANT:
a well ven tilated area with
drainage during the flushing procedure.
Keep water inlet pressure between 20 to 40 p si
(140 to 275 kPa).
Flushing — Outboard Running
A
WARNING
To prevent injury from contact with rotat-
ing propeller, remove the propeller before
flushing.
Place outboard in VERTICAL (DOWN) position in
a well ventilated area.
Thread garden hose into flushing port.
Turn water supply on.
Run outboard at IDLE only until full operating tem-
perature is reached.
Leave the outbo ard in VERTICAL (DOWN) posi-
tion long enough for the powerhead to drain com-
pletely.
Reinstall propeller.
appropriate grou nd Flushing — Outboard Not Running
Outboard can
TILTED (UP) position.
Thread garden hose into flushing port.
Turn water supply ON.
Flush outboard for at least five minutes.
Turn off water supply and remove garden hose.
Leave the outbo ard in VERTICAL (DOWN) posi-
tion long enough for the powerhead to drain com-
pletely.
002024
ROUTINE SERVICE
COOLING SYSTEM
be in VERTICAL ( DOWN) or
2
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