Suzuki LT-Z400, Service Manual

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1F-2 Engine Cooling System:
General Description
Engine Coolant Description
B933H21601001
CAUTION
!
• Use a high quality ethylene glycol base
anti-freeze, mixed with distilled water. Do
not mix an alcohol base anti-freeze and
different brands of anti-freeze.
• Do not put in more than 60% anti-freeze or
less than 50%. (Refer to Fig. 1 and 2.)
At the time of manufacture, the cooling system is filled
with a 50:50 mixture of distilled water and ethylene
glycol anti-freeze. This 50:50 mixture will provide the
optimum corrosion protection and excellent heat
protection, and will protect the cooling system from
freezing at temperatures above –31
°
C (–24
°
F).
If the vehicle is to be exposed to temperatures below –
31
°
C (–24
°
F), this mixing ratio should be increased up
to 55% or 60% according to the figure.
Anti-freeze Proportioning Chart
Fig.1: Engine coolant density-freezing point curve
Fig.2: Engine coolant density-boiling point curve
Schematic and Routing Diagram
Cooling Circuit Diagram
B933H21602001
Anti-freeze density Freezing point
50% –31
°
C (–24
°
F)
55% –40
°
C (–40
°
F)
60% –55
°
C (–67
°
F)
I310G1160001-01
I310G1160002-01
WATER
PUMP
RADIATOR
ENGINE COOLANT
TEMPERATURE
SENSOR
THERMOSTAT
CYLINDER HEAD
CYLINDER
RESERVOIR
TANK
I933H1160001-01
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