10
Attach the spark plug on plug cap, ground
the electrode on the cylinder head.; start
the engine and check the spark conditions
→no spark
or weak
spark
Perform the ignition system troubleshooting
↓normal
Install a compression gauge in the spark
plug hole and restart the engine and
check the cylinder compression
→low
cylinder
compression
1. Check valve clearance;
2. check cylinder head gasket for leakage
3. Check combustion chamber for excess
carbon buildup
4. check valve seats and guides
5. check for worn piston, piston rings and
cylinder
↓normal compression (80 psi/.55 Mpa)
Install the spark plug. Restart the engine
according to the starting procedure.
2.8.3 Ignition system troubleshooting
■Spark plug inspection
1. Remove spark plug
2. Attach the removed spark plug to the plug cap
3. Ground the negative electrode of the spark plug against the cylinder head or engine block and engage
the electric starter and check to see if a spark jumps across the electrode.
Measure the spark plug gap and perform
the spark test.
Standard gap: .028-.034 in. (0.7-0.8 mm)
↓no spark
Perform the spark test again using a new
spark plug
→normal
spark
Replace the spark plug
↓no spark
Perform the spark test again using a new
spark plug
→normal
spark
Replace Ignitor
↓no spark
Check ignition module
→abnormal Replace the ignition module
↓normal
Check resistance of ignition coil
→abnormal Replace the coil
↓normal
Check trigger air gap and trigger
resistance
→abnormal
Adjust the air gap and/or replace the
trigger
↓normal
Check the ignition coil resistance and high
voltage cable and insulation cap
→abnormal
Check the ignition coil
↓
Check or replace wiring harness
Содержание IG6000
Страница 1: ...IG6000 IG6000h Generator Service Manual The Coast Distribution System June 1 2007 ...
Страница 8: ...4 1 4 Wiring Diagram ...
Страница 32: ...28 7 FRAME HOUSING AND FUEL TANK 7 1 Disassembly and reassembly ...
Страница 34: ...30 8 ALTERNATOR IGNITION COIL TRIGGER STARTER MOTOR FAN COVER 8 1 Component Identification ...