F300IGIgnition_System-Part1
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PART 1 - PART 2 - PART 3 - PART 4
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DAIHATSU
F300
IGNITION SYSTEM
PRECAUTIONS TROUBLE SHOOTING IGNITION SYSTEM OUTLINE D!STRlBUTOR SST [Special Service Tools] TIGI-ITENING TOROUE
SPEC|F|CAT|ON ........................................... IG-31
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IGNITION SYSTEM
PRECAUTIONS
1. Do not leave the ignition key switch turned ON for more than ten minutes while the engine is stopped. 2. When a tachometer is connected tothe system, connect the test probe of the tachometer to the negative
(-) terminal of the ignition coil. 3. As some tachometers are not compatible with this ignition system, it is recommended to confirm the
compatibility of your unit before using. 4. Never allow the ignition coil terminals to touch ground. It could result in damage to the ignitor andlor the
ignition coil. 5. Do not disconnect the battery cable when the engine is running. 6. Make sure that the igniter is properly grounded tothe body.
Engine will not startfhard to SIafI. (Engine crank normally.)
incorrect ignition timing
Ignition coii fauity
igniter faulty
D1str:r>utor faulty
Spark plug wires faulty
Spark plugs faulty
Ignition wiring disconnected or broken
Heset timing.
Inspect coil.
lnspecl distributor.
Inspeci spark plug wwres.
Inspect plugs.
Inspect wiring.
Rough idle or engine stalls.
Spark plugs faulty
Ignition wiring faulty
inC0rreCt ignition timing
ignition coil faulty
Igniter faulty
Distributor faulty
Spark plug wires faulty
Inspect plugs.
Inspect wiring.
Reset Uming.
Inspect coil.
Inspect distributor.
Inspect spark plug wires
Engine hesitationlpoor ac- celeration
Spark plugs faulty
Ignition wiring faufty
Lncorrect ignition timing
Inspect plugs.
Inspect wiring.
Reset timing.
Engine meseling (Engine runs after ignition switch is turned OFF)
Incorrect ignition timing
Muffler expmsion (after fire) all the twme
Incorrect ignition timing
Fieset
Engine backfire
Incorrect ignition timing
Pnor fue! economy
Spark plugs faulty
Incorrect ignition timing
Inspect plugs.
Reset timing.
Engine overheating
lncgrrect ignition timing
Reset timing,
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IGNITION SYSTEM
IGNITION SYSTEM CIRCUIT The ignition system employs a full-transistorized, battery Ignition type.
Baile
To iniector reiay (HD-E only)
Spark plug
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IGNITION SYSTEM
DISTRI B UTOFI
The distributor is a full-transistorized type which incorporates a signal generator and an ignitor. The signal generator consists of a signal rotor, a magnet and a pickup coil. The ignition signal is obtained electrically by the rotation of the signal rotor. This type of distributor has no contact point. Since there is no problem attributable to contact points, no maintenance is required reiating to Contact points. As for the timing advance device, the distributor is equipped with a two-stage vacuum timing advance device and a governor timing advance device. A high-voltage terminal is protruded iateraiiy.
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SPECIFICATIONS
Engine]
Vacuum controller negative pressure circuit Wiring diagram
NOTE:
Be sure to ground the distnbutor housing to the
A coil to pe used should be one equivalent to the Daihatsu part nunjber 90048-52072.
Timing advance characteristics
Govemor characteristics diagram
Vacuum V
Advance
9.
Advan
peciited value
Advance
Q
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[HD-E Engine] (General specifications)
#E
Z
Imneusu JAPAN
Vacuum controller negative pressure circuit Wiring diagram
Chamber
E|ack!Orange stripe Battery [WI I Dlsmbutor Ay 7 gl Whgnitcr Btack % To
distributor
NOTE: 1. Be sure to ground the distributor housing to the
body 2. A coil to be used should be one equivalent to the
Daihatsu Dart number 9DO4&52072.
Tlrning advance characteristics
Specified value SOO rpm 0.0° 1300 80° 2077 9.5" 3000 12.0° 3500 1 1
nee degr
Adva
i
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i
f
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_ IGNITION SYSTEM [HD-E Engine] (U.S. specifications)
Vacuum controller negative pressure circuit Wiring diagram
Kev SW
NOTE:
Be sure to ground the distributor housmg to the body A coil to be used should be one equivalent to me Daihatsu Dart number 90048-52072.
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Intake
Timi
ng advance characteristics
ovemor characteristics diagram
Vacuum characteristics diagram
Specified value f
hambe
Adva
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lNITION TIMING CONTROL SYSTEM
Engine]
ie sub timing advance is carried out during the idling operation so that the engine idling may be stabilized 2 the engine revolution speed rises, negative pressure starts to b
, negative pressure starts to be applied tothe main diaphragm side. 3. Thus. the ignition timing advances further to an optimum setting. addition, a WV provided at the main side dei
e delays the transmission of negative pressure so that the ignition ning may be retarded during the acceleration period. Consequentiy, the combustion temperature is :_-cred, thereby reducing the NOX and HC emissions.
ike Type HD-C engine. Type HD-E engine also employs a system which conducts a two-stage vacuum
ning advance and governor timing advance.
i nn-E engine 1
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SPARK PLUG '
f
The spark pfug is a resistor-incorporated, compact spark plug whose width across flats ofthe hexagon section is 16 mm.
Recommended spark plugs
IGNITION COIL
The ignition coil employs a closed core coil which features iight weight and compact design.
Hill
The closed core coil features high energy conversion efficiency because its magnetic flux circuit is closed owing to an iron core. thus keeping leakage flux to a minimum level. l
Ignition coil specifications
Primary Coil Resistance: 1.35 - 1.65 £2 Secondary Coil Resistance: 22 30
IN-VEHICLE INSPECTION -" 4'
Spark test (Check to see if spark occurs.) 1. Turn OFF the ignition key switch. 2. Disconnect the fuel pump retay and injector relay from the
relay box. (Only for HD-E Engine)
3. Connect a timing iight to the resistive cord between the
distributor and the ignition coil.
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IGNITION SYSTEM
4. Ensure that the timing lightfiashes while the engine is being
cranked by the starter motor. If the timing light fiashes, check the resistive cords and spark plug. li the timing iight wifi not flash. perform the check according to the chart given below. NOTE: - After completion of the inspection, reconnect the fuel
pump relay and injecior relay to the relay box.
SPARK TEST
Check resistance of the resistive cords, Remace me resisme
Check power suppiy to ignition coil.
(1)Disconnect connector of ignition coil, (2)Turn ON ignition key Switch. 1 (3)Ensure that batiery voltage is applied to positive (+) terminal of ignition coil oi engine wire.
Check wiring between ignition swftch to ignition Coil. |
Measure resistances of primary coil and secondary coil Li--| Replace ignition coil, of ignmon con, BHD f V f W 7" f
Resistance [at 20°C]
Primary: 1,35 -1.65 £1 Secondary: 22 - 30 KS1
Measure air gap between signal rotor and signal Adiust Air gap. generator. BAD
