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7.3.6 Spark plug connector – Cleaning and check
Special tools, Material, Spare parts
Designation / Use
Spark plug connector with ignition cable
Sealing ring
WARNING
Hot components/surfaces.
Risk of burns!
• Allow the engine to cool down to below 50 °C before beginning work.
• Wear suitable protective equipment/thermal gloves.
• Avoid unprotected contact with hot surfaces.
WARNING
Compressed air gun ejects a jet of pressurized air.
Risk of injury to eyes and damage to hearing, risk of rupturing internal organs!
• Never direct air jet at people.
• Always wear safety goggles/face mask and ear defenders.
Spark plug connector – Cleaning and check
1.
Remove spark plug connector (→ Page 172).
2.
Remove spark-plug isolator sealing ring (→ Page 174).
3.
Check spark plug connector (1) and ignition
line (2) visually for kinks, pinching points and
brittleness, replace if necessary.
4.
Check connection between upper section of
insulation (3) and lower section of insula-
tion (4) for firm seating, tighten hand-tight if
required.
5.
Blow out connection opening to spark plug
with compressed air.
6.
Check connection to spark plug visually. The
connection spring (5) must be free of parti-
cles.
7.
Check the ohmic resistance of the ignition
line at the two end connections (5) and (6).
The measured value must be within the ac-
ceptable range for the relevant spark plug
connector.
8.
Install spark-plug isolator sealing ring
(→ Page 174)
9.
Install spark plug connector (→ Page 174).
Part No.
(→ Spare Parts Catalog)
(→ Spare Parts Catalog)
MS150122/02E 2017-09 | Ignition System | 173
Qty.
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