Remove/install spark plugs

AR15.12-D-1010TSC

Remove/install spark plugs

15.11.2019

Engine

274 in model 907

5

Spark plug wrench

R4

Spark plugs

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on avoiding damage to ignition system

AH15.10-P-0002-01V

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove ignition coils.

AR15.12-D-2003TSC



Clean

2

Use compressed air to blow out any dirt residue in the spark-plug recesses.

 Set of protective covers

*001589019100

 Record plug

*129589009100

3

Remove spark plugs (R4) with spark plug wrench (5) from cylinder head.

 Spark plug to cylinder head

*BA15.10-N-1001-01D

 Spark plug wrench

*278589000900

4

Install in the reverse order.

 Ignition system

Number

Designation

Engine 274

BA15.10-N-1001-01D

Spark plug to cylinder head

Nm

23