BOMBARDIER 1982 Shop Manual page 122

SECTION 02 ENGINE
. SUB-SECTION 05 (464 ENGINE TYPE)
7. Plug
2. Plate (battery)
3. Clip nut (2)
4. Lockwasher
714
(2)
5. Round slotted head machine screw
1/4-20
x
1/2 (2)
6. Hexagonal elastic stop nut 1/4-20 (2)
7. Coolant tank
8. Bracket
9. Hexagonal flanged elastic stop nut
1/4-20 (4)
70. Clip (4)
77. Hexagonal head cap screw M6 x 7.00 x 76 (2)
72. Hexagonal elastic stop nut 6 x 7.00 (2)
73.
Pressure cap
74.
Overflow hose 76"
(406
mm)
INSPECTION
Check general condition of hoses and clamp tightness.
DRAINING THE SYSTEM
•
WARNING: Never drain or refill the cooling sys-
. tem when engine is hot.
To drain the cooling system, remove the coolant tank
cap and siphon the coolant mixture using a primer
pump, a length of plastic hose and steel tubing inserted
as deep as possible into the lower hose of the tank.
rfQ1 .... - -
Primer pump
IT
DISASSEMBLY & ASSEMBLY
CD
@Apply pipe thread sealant to avoid leaks.
@
See if the cap pressurizes the system. If not, install a
new 13 Ibs cap, do not exceed 13 Ibs of pressure.
@)To check thermostat, put it in water and heat water
thermostat should open when water temperature reaches
43°C (110°F).
PAGE 120
75. Hose 23" (584 mm)
76. Gear clamp (2)
77. Clip
78. Inlet hose
79. Gear clamp (6)
20. Heat exchanger (2)
27. Radiator protector (2)
22. Hexagonal washer head self-tapping screw
70-24
x
1/2 (2)
23.
Rivet
(42)
24. "U" hose
25. Outlet hose
26. Grommet
27. Thermostat
28. Sensor
REFILLING THE SYSTEM
Capacity:
Approximately 5 liters
(1.1 Imp. gal.) (1.3 U.S. gal.)
55% antifreeze
+
45% 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 tem-
perature is reached. Stop engine .
Then recheck coolant level, ensuring that it is 25 mm
(1") below filler neck of reservoir.
•
WARNING: Always unscrew cap to the first step
with a cloth to release pressure, before removing it.
)