4 cylinders + 6 cylinders 4 cylinders + 6 cylinders - Steyr Motors

ToC SERVICE MANUAL MARINE ENGINES
05 COOLING SYSTEM
05.00.07 Drain coolant system
Raw water circuit
1 Remove drain plug (ill.1/pos.1).
1
NOTE:
Drain plug (ill.1/pos.1) does not exist
for all models.
2 To drain the raw water ducts on the engine, remove
cover rear of raw water pump (ill.2+3/pos.1).
00.07 ill.1
NOTE:
For complete removal of water residues
from pump housing and water ducts
of raw water circuit, proceed as follows:
3 Lock exhaust pipe with special tool No. VR00144/0
(ill.4/pos.1)
1
4 Remove plug J 1.
Connect special tool No. VR00145/0 instead of plug
J1.
00.07 ill.2
5 Start the engine by pressing the button, until raw
water system is completly emptied.
ATTENTION: Only start with special tool No.
VR00145/0. Engine only be cranked
by starter motor, but not start.
6 After complete drainage, assembly is done in reverse
order.
1
ATTENTION: If the water is not drained in time before
the winter season, this could result in
frost damage on the engine as well as
the drive.
00.07 ill.3
1
00.07 ill.4
Z001019/0_6_July 2008 Page COOLING SYSTEM - 13