System Testing - Honda CRF450R 2009 Service Manual

COOLING SYSTEM
SYSTEM TESTING
COOLANT (HYDROMETER TEST)
Make sure the engine is cool, remove the radiator cap.
Test the coolant specific gravity using a hydrometer
~~
....
,,::~:::~~~:
(see below for ·COOLANT GRAVITY CHART
M
) .
For maximum corrosion protection, a 1:1 solution of
ethylene glycol and distilled waler is recommended
(page
7-8),
STANDARD COOLANT CONCENTRATION :
1: 1 mixture with distilled water
look for contamination and
replace
the
coolant
if ........ _
necessary.
After checking the gravity. Install the radiator cap
securely.
COOLANT GRAVITY CHART
5
10
15
"-
0
20
,g
25
e
30
c
35
•
" 40
8
1
45
I
50
f - -
55
60
-
~
0
(32)
1.009
1 018
1.028
1.036
1.045
1.053
1.063
Coolant temperature °C (O F)
5 10 15
~25
1 30 35 --'---40
(41 )+ (SO) (59)
cW"ll~L1J 86 )
(95) (1 04)
1.009 1.008 1.008 1007 1006 1005 1.003 1.001
1 01f+101ijij, .016
~1.011 1 1 '009
26 1.025 1.018 1.016
34 1.033 1.02511.023
043 1.042 1.034 . 1.031
~:~ -l.-~ ,
51 1.049 1.041 1.038
1.027 1.0
1.035 1.0
1.044 1.
1.052 1.0
1.062 1.
~ 060
f
1.058 1.049 1.046
1.072 1.070
1 . 068~ .066
1.056 1 1.053
. 1.080 1.078 1.076
1
1.074 1.063 1.060
1.086
1
1.084 1.082 1.080 1.068 1.065
_ ~=tf"i Oij95 i j-l
.. 093 1.091 1.088 1.076 1.073
. 1.100 1.098 1.095 1.092 1.080 1.077
45 SO
(113) (122)
0.999 0.997
1.007 1.005
1.014
I
1.012
1.021 1.019
1.028 1.025
1.035 1.032
1.043 1.040
1.050 1.047
1.057 1.054
1.062 1.059
1.070 1.067
1.07<fTT071
7-7