Ski-Doo 2005 MACH Z, Shop Manual

Page: 105 / 343

Section 02 ENGINE
Subsection 10 (COOLING SYSTEM)
Rear Cap Heat Exchanger
Summit Models Only
For disassembly, drain cooling system.
Remove rear hose cover.
Remove Oetiker clamps and unplug rear cap heat
exchanger hoses.
Drill all rivets retaining rear cap heat exchanger to
frame.
A35C3GA
1
1
3
2
REAR CAP HEAT EXCHANGER
1. Remove Oetiker clamps
2. Drill all rivets
3. Rear cap heat exchanger
Remove rear cap heat exchanger.
For installation, reverse the removal procedure.
Heat Exchanger Protector
Insert heat exchanger protector into rear heat ex-
changer C-rail and crimp C-rail at rear end.
Thermostat
There is no thermostat on those models.
COOLING SYSTEM REFILLING
PROCEDURE
CAUTION: To prevent rust formation or freez-
ing condition, always replenish the system
with the BRP premixed coolant or with 50%
antifreeze and 50% water.
Pure antifreeze
without water freezes (like slush ice). Always
use ethylene glycol antifreeze containing cor-
rosion inhibitors specifically recommended for
aluminum engines.
System Capacity
Refer to TECHNICAL DATA.
Refilling Procedure
IMPORTANT: USE THE PREMIXED COOLANT
(P/N 293 600 038). Do not reinstall pressure cap.
With engine cold, refill coolant tank up to COLD
LEVEL line. Start engine. Refill up to line while
engine is idling until rear heat exchangers are
warm to the touch (about 4 to 5 minutes). Al-
ways monitor coolant level while filling tank to
avoid emptying. Install pressure cap.
Lift rear of vehicle and support it safely.
Activate throttle lever 3 - 4 times to bring engine
speed to 7000 RPM.
Apply the brake.
Lower vehicle back on ground and add coolant up
to 15 mm (1/2 in) above the COLD LEVEL line.
A
A33C1IA
1
TYPICAL
1. Cold level line
A. 15 mm (1/2 in)
Lift front of vehicle of 60 cm (24 in) and support it
safely. Let the vehicle idle for two minutes.
Put vehicle back on ground and add coolant up to
15 mm (1/2 in) over COLD LEVEL line.
When engine has completely cooled down,
recheck coolant level in coolant tank and refill up
to line if needed.
Check for coolant mixture freezing point. Specifi-
cation is - 37°C (- 35°F). Adjust as necessary.
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