CHK
ADJ
Periodic checks and adjustments
3-9
6C13G11
2. Clean the electrodes
1
with a spark plug
cleaner or wire brush. Replace the spark
plug if necessary.
3. Check the electrodes for erosion and
excessive carbon or other deposits, and
the gasket for damage. Replace the
spark plug if necessary.
4. Check the spark plug gap
a
. Adjust if out
of specification.
5. Install the spark plugs, tighten them fin-
ger tight, then to the specified torque
using a spark plug wrench.
Checking the thermostat
1. Remove the cover
1
, gasket, and ther-
mostat
2
.
2. Suspend the thermostat in a container of
water.
3. Place a thermometer in the water and
slowly heat the water.
4. Check the thermostat valve opening at
the specified water temperatures.
Replace if out of specification.
Specified spark plug:
DPR6EB-9 (NGK)
Spark plug gap
a
:
0.8–0.9 mm (0.031–0.035 in)
T
R
.
.
Spark plug:
17 N·m (1.7 kgf·m, 12.5 ft·lb)
S69J5E40
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