BOMBARDIER 1980 Shop Manual page 93

SECTION 03
SUB-SECTION 02, (ENGINES)
COOLING SYSTEM
INSPECTION
Check general condition of hoses and clamps tightness.
DRAINING THE SYSTEM
To drain the cooling system, remove the coolant tank
cap.
Remove the R. H. access gnll, and connect a length of
plastic hose to the radiator drain valve in order to drain
the cooling system outside of the body,
Open the drain valve.
valve
DISASSEMBLY & ASSEMBLY
@To check thermostat, put It in water and heat water.
Thermostat should open when water temperature reaches
43"C (110"F).
@@Apply pipe thread sealant to avoid leaks.
(444 ENGINE TYPE), PAGE 4
REFILLING THE SYSTEM
Capacity:
6.25 liters
(1.4 Imp, gaL) (1. 7 US. gaL)
60% concentrated antifreeze
+
40% water
To refill the cooling system, unscrew the plug on top
of the cylinder head, then slowly pour the liquid into the
coolant tank until it reaches the plug hole in the cylinder
head, Reinstall the plug. Continue to pour the liquid in
the coolant tank until the coolant level reaches 25 mm
(1 ") below filler neck of reservoir.
With the pressure cap removed, start engine to allow
the coolant to circulate and let it run until normal
temperature is reached. Stop engine.
Then recheck coolant level, ensuring that it is 25 mm
(1 ") below filler neck of reservoir.