wsm wg972-e4, Workshop Manual

Page: 52 / 153

GENERAL
WG972-E4, WSM
G-26
Anti-Freeze
• There are two types of anti-freeze available: use the permanent
type (PT) for this engine.
• Before adding anti-freeze for the first time, clean the radiator
interior by pouring fresh, soft water and draining it a few times.
• The procedure for mixing water and anti-freeze differs
according to the make of the anti-freeze and the ambient
temperature. Basically, it should be referred to SAE J1034
standard, more specifically also to SAE J814c.
• Mix the anti-freeze with fresh, soft water, and then fill into the
radiator.
IMPORTANT
• When the anti-freeze is mixed with fresh, soft water, the
anti-freeze mixing ratio must be less than 50 %.
* At 1.01 × 100000 Pa (760 mmHg) pressure (atmospheric). A
higher boiling point is obtained by using a radiator pressure cap
which permits the development of pressure within the cooling
system.
NOTE
• The above data represents industrial standards that
necessitate a minimum glycol content in the concentrated
anti-freeze.
• When the coolant level drops due to evaporation, add
fresh, soft water only to keep the anti-freeze mixing ratio
less than 50 %. In case of leakage, add anti-freeze and
fresh, soft water in the specified mixing ratio.
• Anti-freeze absorbs moisture. Keep unused anti-freeze in a
tightly sealed container.
• Do not use radiator cleaning agents when anti-freeze has
been added to the coolant.
(Anti-freeze contains an anti-corrosive agent, which will
react with the radiator cleaning agent forming sludge which
will affect the engine parts.)
9Y1211108GEG0044US0
[9] CHECK POINTS OF EVERY 2 YEARS
Replacing Intake Air Line
1. Loosen the clamp (2).
2. Remove the intake air hose (1) and clamp (2).
3. Replace new intake air hose (1) and new clamp (2).
4. Tighten the clamp (2).
NOTE
• To prevent serious damage to the engine, keep out any
dust inside the intake air line.
9Y1211108GEG0045US0
Vol %
anti-freeze
Freezing point Boiling point*
°C °F °C °F
40 − 24 − 11 106 223
50 − 37 − 35 108 226
(1) Intake Air Hose (2) Clamp
KiSC issued 07, 2015 A