Installation
11. Screw in the spark plugs by hand until they touch the cylinder head, then tighten them to 25 Nm.
Attention! Install the spark plug wrench strictly perpendicularly, without allowing it to tilt, so as not to damage the ceramic insulator.
12. Check the ignition coils by pressing on the spark plug tips with a plastic wedge. The spark plug tips and coil springs must not be damaged or deformed.
13. Replace the spark plug tips and make sure the rubber caps are securely seated on the tips. The caps must not be deformed. If the cap is loose, the spark plug insulator will not be protected from breakdown.
14. Install the ignition coil assembly together with the tips onto the spark plugs and secure the assembly.
15. Connect the multi-pin plug and secure it.
16. Screw in the ignition coil assembly mounting bolts and tighten them to 20 Nm.
17. Secure the coil pack holder with a tightening torque of 8 Nm.
18. Connect and secure the crankcase ventilation hoses.
19. Install the ignition coil block cover and secure it with bolts. Secure the crankcase ventilation hose in the holder.
Spark Plug Socket Thread Renewal
Attention! If it turns out that the thread of the socket on the cylinder head where the spark plug is screwed in is damaged, then this thread must be renewed. BERU offers a suitable set of tools for cutting a new thread. Using a special drill, grind down the damaged thread. The cylinder head does not need to be dismantled for this. Then cut a new thread in the socket and screw in the spark plug together with a special sealing insert. The inserts ensure a secure fit of the spark plugs and the required compression level.