Replacing The Coolant - Rotax 914 series Maintenance Manual

General note
See
Carry out visual inspection of all coolant hoses (1) for damage, leaks,
Coolant hoses
hardening as a result of heat and porosity.
Inspect all connections on the top and bottom of the cylinder head and on
Water pump
the water pump (2).
Inspect expansion tank (3) for damage. Inspect protection rubber at the
Expansion tank
bottom of the tank for tight fit.
Inspect the gasket of the radiator cap (4) and check the pressure release
Radiator cap
valve and return valve for proper operation.
See chap. 12-20-00 section: 11.4).

11.2) Replacing the coolant

General note
See
To replace the coolant the following steps are necessary:
Instruction
Step
1
2
3
4
Effectivity: 914 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Risk of Burns!
WARNING WARNUNG
Hot engine parts!
Always allow engine to cool down to ambient tempera-
ture before start of any work.
Fig. 13.
Risk of Burns!
WARNING WARNUNG
Never open the radiator cap when the cooling system
is hot. For safety's sake, cover cap with a rag and open
slowly. Sudden opening of the cap could provoke the
escape of boiling coolant and result in scalding.
Use only coolant as recommended in the current Op-
NOTICE
WARNUNG
erators Manual.
Fig. 14.
Open the radiator cap on the expansion tank.
Remove the bottom attachment screw (1) (with sealing ring) of water pump
(2).
Drain the engine coolant.
NOTES: If the radiator is located below the engine, also detach the
lowest positioned coolant hose.
Fit attachment screw (stainless steel) along with a new sealing ring. Tighten
to 10 Nm (90 in.lb).
Procedure
12-20-00
page 30
January 01/2010