Ski-Doo Ski Doo MX Z 2005 [1021/1429] Draining the system
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Ski-Doo Ski Doo MX Z 2005 [1021/1429] Draining the system

Ski-Doo Ski Doo MX Z 2005 [1021/1429] Draining the system
Section 03 ENGINES (2-STROKE)
Subsection 08 (LIQUID COOLING SYSTEM)
COOLING SYSTEM LEAK TEST
Install special radiator cap (P/N 529 021 400) in-
cluded in engine leak tester kit (P/N 861 749 100)
on coolant tank. Install hose pincher (P/N 295 000
076) on overflow hose. Using pump also included
in kit pressurize all system through coolant reser-
voir to 100 kPa (15 PSI).
Check all hoses and cylinder/base for coolant
leaks. Spray a soap/water solution and look for
air bubbles.
529 021 400
A32C3AA
295 000 076
INSPECTION
Check general condition of hoses and clamp tight-
ness.
DRAINING THE SYSTEM
WARNING
Never drain or refill the cooling system when
engine is hot.
To drain the cooling system, siphon the coolant
mixture from the coolant tank no. 2 using the
siphon tool (P/N 529 035 880). Disconnect hose
at water pump to drain coolant from engine.
When the coolant level is low enough, lift the rear
of vehicle to drain the radiator.
DISASSEMBLY AND ASSEMBLY
Coolant Pump
Refer to BOTTOM END section.
3,4 Sender and Plug or Elbow
Apply Loctite 592 (P/N 293 800 018) thread sealant
on sender no. 3 and plug or elbow no. 4 to avoid
leaks.
1, Pressure Cap
Check if the cap pressurizes the system. If not,
install a new 90 kPa (13 PSI) cap (do not exceed
this pressure).
2, Coolant Tank
For removal, drain cooling system before remov-
ing coolant tank no. 2.
Remove all hoses from coolant tank.
Slide down the coolant tank to disengage it from
oil tank.
Check if the tank is cracked or melted. Replace if
necessary.
For installation, reverse the removal procedure.
NOTE: It may be necessary to move oil tank for
an easier installation of coolant tank.
6, Radiators
Remove all debris between radiator fins. A clean
radiator is more efficient than a dirty one.
Check if radiator fins are damaged. Replace bro-
ken radiator if necessary.
NOTE: A radiator with many broken fins does not
work properly.
For disassembly, drain cooling system.
Remove rear suspension (refer to REAR SUSPEN-
SION).
Using Supertanium
TM
bit (P/N 529 031 800), drill
all rivets retaining radiator to the frame or grind
the rivets with a grinding disk.
Pull the radiator a little and remove the Oetiker
clamps.
For installation, reverse the removal procedure.
5, Thermostat
For disassembly, drain the cooling system (see
above).
Unscrew clamp retaining hose to the water outlet
socket.
mmr2005-017 149

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