Replacing spark plugs (Peugeot Partner I)

1. Proper spark plug operation is important to ensure proper engine operation and efficiency. Spark plugs must be matched to the specific engine (the appropriate spark plug types are given at the beginning of this chapter). When using proper spark plugs and maintaining the engine in good condition, spark plugs do not require any additional attention between scheduled replacement intervals. Cleaning spark plugs is rarely necessary, and it's best not to attempt it if you don't have the right tools, as you can easily damage the electrodes.



2. On later models with 1.4L engine and all models with 1.6L engine, to gain access to the spark plugs, remove the ignition coil as described in chapter 5B.

3. On early models with a 1.4L engine, if the markings on the high-tension wires installed during vehicle assembly are illegible, mark the wires with numbers 1 through 4 according to which cylinder the wire goes to (cylinder #1 is closest to the transmission). Grasp the wire end and disconnect each wire from the corresponding spark plug. Pull on the tip, not on the wire, to avoid damaging the wire.

4. Before removing the spark plugs, to prevent dirt from getting into the cylinders, it is recommended to remove dirt from the spark plug recesses. To do this, use a clean brush, vacuum cleaner or compressed air.





5. Remove the spark plugs from the cylinder head using a suitable spark plug wrench, a suitable open-end wrench or a long socket with an extension (figure 18.5). Keep the socket head aligned with the spark plug - if it moves to the side, you can break the ceramic.