I
Fig.
3-
13
Fig.
3-14
Mixture percentage Specific gravity
Protection
(Volume)
of
mixture at
Solution Water
20°C (68°F)
Above - 26
°C(-1
5°F)
45
55
1.066
Above
-40°C(-40°F)
55
45 1.078
3
3-E.
COOLING SYSTEM PRESSURE TE
ST
1. Check the pressure cap function. To check, first
wet the cap rubber gasket to insure an air tight
seal and then attach a tester to the cap.
Pump the tester to the specified pressure.
If
the
pressure drops rapidly and excessively, replace
the cap.
Standard valve opening pressure:
0.9
±
0.15
kg/cm2 (13 ± 2
lb/in•)
2. Inspect the cooling system for leaks.
I)
Attach a tester in place
of
radiator pressure cap.
2) Run the engine until
it
reaches normal operating
temperature.
3) With the engine running and tester installed, pump
up the system to approx.
0.9 ± 0.1 kg/cm• (13 ±
1 lb/in
2
)
and observe the gauge.
Note:
Never allow
the
pressure
to
build
up
to
more than
1.0
kg/cm• (14
lb/in•).
If
the pressure drops rapidly, inspect ail external parts
for leaks.
If
no external leaks appear and the pressure
continues
to
drop, inspect the engine oil to determine
whether
or
not
coolant
is
leaking into the crankcase
due
to
a cracked cylinder block or damaged head gasket.
3-F.
"V"
BELT AND TENSION ADJUSTMENT
1: 1f the belt
is
broken, glazed, or worn, replace the
belt with a new one.
If
the belt is stretched so that
it
cannot be tightened sufficiently, install a new
belt.
2.
If
the belt
is
noisy, check the tension
of
the
belt.
Also, check for misaligned pulleys.
3. When the belt
is
pressed down with I 0 kg (22 lb)
force, the belt should deflect the specified amount.
For
new
belt
9-11
mm
(0
.3
-0
.4
in)
F
or
used
belt
12
-14
mm
(0.5
-
0.6
in)
3-G.
ANTIFREEZE SOLUTION
To prevent freezing, it is recommended
to
use
MAZDA
genuine Jong life solution.
The mixing rate
of
water and
MAZDA
genuine long life
solution
is
shown
in
the left table.
Note:
a)
Always use
soft
water (demineralized water) in the
coo
ling system.
b) If
the
MAZDA genuine long life solution
is
not
available, use antifreeze solution (for aluminum
engine, Ethylene-Glycol based)
or
anti-corrosive
solution
on
the
market
in
accordance
wit
h
the
season and
the
maker's instruction.
3 4
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