Isuzu Rodeo UE. Service manual — part 304
6D2–3
IGNITION SYSTEM (6VD1 3.2L)
Ignition Coil
Removal
1. Disconnect battery ground cable.
2. Ignition coil connector and ignition coil.
f
Disconnect three connector from ignition coil.
f
Remove harness bracket bolt on cylinder head
cover.
f
Remove fixing bolts on ignition coil.
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Legend
(1) Ignition Coil Connector
(2) Bolt
(3) Ignition Coil Assembly
Inspection and Repair
Check the ignition coil assembly for insulation. Check
terminals for corrosion or damage, and replace as
necessary.
Measuring resistance of ignition coil assembly.
Terminal No.
Limit
1 to 2
Without 0 ohm or infinity
maximum ohm.
1 to 3
Same as above
2 to 3
Same as above
Measure resistance of ignition coil assembly, and replace
the ignition coil assembly if its value exceeds the
standard.
060RW006
Installation
1. Install the ignition coil assembly (3).
Connect ignition coil connector (1) and ignition coil
(3), then tighten bolt (2) to the specified torque.
Torque: 4 N·m (35 lb in)
060RW001
2. Connect battery ground cable.
6D2–4
IGNITION SYSTEM (6VD1 3.2L)
Spark Plug
Removal
1. Remove spark plugs.
Inspection and Repair
The spark plug affects entire engine performance and
therefore its inspection is very important.
f
Check electrode and insulator for presence of cracks,
and replace if any.
f
Check electrode for wear, and replace if necessary.
f
Check gasket for damage, and replace if necessary.
f
Measure insulation resistance with an ohmmeter, and
replace if faulty.
f
Adjust spark plug gap to 1.0 mm (0.04 in)
∼
1.1 mm
(0.043 in).
f
Check fuel and electrical systems if spark plug is
extremely dirty.
f
Use spark plugs having low heat value (hot type plug)
if fuel and electrical systems are normal.
f
Use spark plugs having high heat value (cold type
plug) if insulator and electrode are extremely burned.
Sooty Spark Plugs
Much deposit of carbon or oil on the electrode and
insulator of spark plug reduces the engine performance.
Possible causes:
f
Too rich mixture
f
Presence of oil in combustion chamber
f
Incorrectly adjusted spark plug gap
Burning Electrodes
This fault is characterized by scorched or heavily oxidized
electrode or blistered insulator nose.
Possible causes:
f
Too lean mixture
f
Improper heat value
Measuring Insulation Resistance
f
Measure insulation resistance using a 500 volt
megaohm meter.
f
Replace spark plugs if measured value is out of
standard.
Insulation resistance: 50 M
W
or more
011RS010
Cleaning Spark Plugs
f
Clean spark plugs with a spark plug cleaner.
f
Raise the ground electrode to an angle of 45 to 60
degrees. If electrode is wet, dry it before cleaning.
f
After spark plug is thoroughly cleaned, check
insulator for presence of cracks.
f
Clean threads and metal body with a wire brush.
f
File the electrode tip if electrode is extremely worn.
f
Bend the ground electrode to adjust the spark plug
gap.
011RS011
Installation
1. Spark plugs
f
Tighten spark plugs to the specified torque.
Torque: 18 N·m (13 lb ft)
6D2–5
IGNITION SYSTEM (6VD1 3.2L)
Crankshaft Angle Sensor
Removal
1. Disconnect battery ground cable
2. Wiring connector from crankshaft angle sensor.
3. Remove crankshaft angle sensor from cylinder block.
012RS008
Installation
1. Install crankshaft angle sensor into the cylinder block.
Before installation,apply small amount of engine oil to
the O–ring.
Torque: 10 N·m (89 lb in)
2. Reconnect wiring connector to crankshaft angle
sensor.
6D2–6
IGNITION SYSTEM (6VD1 3.2L)
Main Data and Specifications
General Specifications
Ignition System
Ignition Form
Electronic Ignition System (El system) with Crankshaft angle Sensor
Spark Plug
Type
K16PR–P11
RC10PYP4
PK16PR11
Plug gap
1.0 mm (0.04 in) – 1.1 mm (0.043 in)
Torque
18 N·m (13lb ft)
Torque Specifications
E06RW001
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