Westinghouse iGen2200 Instruction Manual page 35

Figure 42 – Removing the Spark Plug Boot
4. Remove the spark plug boot by firmly pulling it
up and away from the engine (see Figure 42).
NOTICE
Never apply any side load or move the spark plug
laterally when removing the spark plug. Applying
a side load or moving the spark plug laterally may
crack and damage the spark plug insulator.
5. Clean area around the spark plug.
6. Use a spark plug socket wrench to remove the
spark plug from the cylinder head by unscrewing
it anti-clockwise (see Figure 43).
Figure 43 – Removing the Spark Plug
7. Place a clean rag over the opening created by
the removal of the spark plug to make sure no
dirt can get into the combustion chamber.
8. Inspect the spark plug for:
• Cracked or chipped insulator; replace the
spark plug.
• Excessive wear of the electrodes; replace the
spark plug.
• Excessive carbon or oil fouling of the
electrodes; clean the electrodes with a wire
brush or replace the spark plug.
MAINTENANCE
• Spark plug gap of 0.7 mm or 0.028 inch
(see Figure 44); after cleaning with a wire
brush, check using a spark plug gap tool or
feeler gauge and adjust by carefully bending
the ground electrode. Always check the gap
of a new spark plug before installing it.
When replacing the spark plug, use only
the specified part as listed in Table 3.
NOTICE
Use only the recommended spark plug
(Torch brand) or equivalent. The use of a non-
recommended spark plug can damage the engine.
A
G
F
E
A - Gap
B - Ground Electrode
C - Gasket
D - Insulator
Figure 44 – Spark Plug
9. Install the spark plug by following the steps
outlined below:
a - Carefully insert the spark plug back into the
cylinder head. Hand screw the spark plug
clockwise until it bottoms out (seats).
b - Use a spark plug socket wrench to finish
tightening the spark plug. If re-installing
a used spark plug, tighten approximately
1/8 to 1/4 of a turn after the spark plug
seats. If installing a new spark plug, tighten
approximately 1/4 to 1/2 a turn after the
spark plug seats. The tightening torque
should not exceed 12 Nm (9 lb-ft) for
the iGen1200 or 17 Nm (13 lb-ft) for the
iGen2200, 2500 & 4500.
c - Replace the spark plug boot, making sure
the boot fully engages onto the spark plug's
terminal.
10. Re-install the spark plug access cover.
B
C
D
E - Terminal
F - Thread
G - Centre Electrode
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