Ski-Doo REV Series Shop Manual

Section04ENGINE
Subsection 05 (LIQUID COOLING SYSTEM)
Rear Radiator and Rear Radiator
Protector
Refer to FRAME for rear radiator removal/installa-
tion procedures.
For cleaning and inspection refer to FRONT RADI-
ATOR.
Radiator and Radiator Protector
Insert radiator protector no. 7 into radiator C-rail
and crimp C-rail at rear end. Refer to FRAME for
radiator no. 6 removal.
Thermostat
For disassembly of thermostat no. 5,drainthe
cooling system (see above).
Unscrew clamp no. 11 retaining hose no. 12 to
the water outlet socket.
Remove:
– water outlet
– socket screws
– gasket thermostat.
To check thermostat, put in water and heat water.
Thermostat should start to open when water tem-
perature reaches the following degree.
To check thermostat, put in water and heat water.
Thermostat should start to open when water tem-
perature reaches the following degree.
ENGINE TEMPERATURE
All 42°C(108°F)
It will be almost fully open at 50°C(122°F).
Thermostat is a double action type.
– Its function is to give faster warm up of the en-
gine by controlling a circuit; water pump — en-
gine — coolant tank. This is done by bypassing
the radiator circuit.
A16C02A
1
2
TYPICAL — CLOSED THERMOSTAT, COLD ENGINE
1. To reservoir
2. From cylinders
– When the liquid is warmed enough, the ther-
mostat opens progressively the circuit, water
pump — engine — radiators — coolant tank
to keep the liquid at the desired temperature.
(See the diagram of the exploded view).
A16C03A
2
1
TYPICAL — OPEN THERMOSTAT, WARM ENGINE
1. To radiators
2. From cylinders
These 2 functions have the advantage of prevent-
ing a massive entry of cold water into the engine.
For installation, reverse the removal procedure.
136 mmr2004-Rev

Ski-Doo REV Series Specifications

General

Chassis	REV
Track Width	15 in
Fuel Capacity	10.6 gal
Seating Capacity	1
Reverse	Available on most models
Electric Start	Available on most models