Section 03 ENGINE
Subsection 06 (COOLING SYSTEM)
GENERAL
The engine removal is not necessary when work-
ing on water pump, thermostat or thermo-switch.
Check general condition of hoses and clamp tight-
ness.
Air bubbles in radiator when engine is running in-
dicates a leaking engine gasket.
WARNING
In order to avoid getting burned, do not re-
move or loosen the radiator cap or the engine
drain plug when the engine is hot.
During assembly/installation, use the torque val-
ues and service products as in the exploded
views.
WARNING
Torque
wrench
tightening
specifications
must strictly be adhered to.
Locking devices (ex.: locking tabs, elastic
stop nuts, self-locking fasteners, cotter pin,
etc.) must be installed or replaced with new
ones where specified. If the efficiency of
a locking device is impaired, it must be re-
newed.
COOLING SYSTEM
INSPECTION
LEAK INDICATOR HOLE
Check the leak indicator hole if there is oil and/or
coolant and replace oil seals in water pump cover
if necessary (refer to
WATER PUMP
).
NOTE:
Coolant leakage indicates a faulty seal on
impeller side and oil leakage indicates a faulty seal
on crankcase side.
vmr2006-071-011_a
1. Leak indicator hole
COOLING SYSTEM LEAK TEST
Remove the front cover. Refer to
BODY
.
Remove the radiator cap.
Install the special radiator cap (P/N 529 035 991)
on radiator.
Pressurize cooling system to 90 kPa (13 PSI).
vmr2006-071-010_a
Check all hoses, radiator and cylinder/base for
coolant leaks. Spray a soap/water solution and
look for air bubbles.
52
vmr2006-071
Содержание BOMBARDIER DS250 2006
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