Radiator Repairs
A leaky radiator core should be repaired by soldering. Patent solu
tions added to the coolant in
order
to seal the
radiator
should be used
only in case of emergency as they may clog the cooling jackets and
pipes.
Anti-frceze
Solutions
During
the
cold
season
when
the
temperature
often
falls
below
tho
freezing point it is necessary to fill the cooling
system
with a freeze-
proof mixture instead of water, which may freeze and damage the
radiator
core or the cylinder block. Methylated spirit or ethylene
glycol
may
be used as antifreeze solutions. Methylated spirit, how
ever, is
not
very suitable because of its low boiling point, especially
when
driving
with high
coolant
temperature,
which is
desirable
during the coldseasonto make effective use of the heater. See page
58.
Glycol, on the other hand, has a boiling point above
that
of
water
and therefore only water need be added when replenishing. The dis-
Ethylene
glycol
volume
°/o
Freezin
°C
g
point
op
Boiling
°C
'
point
°F
Spec.
grav.
10
— 4
25
101
214
1.012
20
—10
14
102
216
1.027
30
—17
2
103
217
1.041
40
—26
—15
104
219
1.055
50
—39
—38
106
223
1.068
60
—56
—68
109
228
1.076
Ethylene
glycol
(U.S.
gal.)
Volume
%
Freezin
°C
g
point
°F
Boilin
°C
I
point
°F
Spec.
grav.
1
quart
13
— 6
21
101
214
1.012
2
quarts
25
—14
7
103
217
1.041
3
quarts
38
—24
—11
104
219
1.055
4
quarts
50
—39 —38
106
223
1.068
36
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