1. Carefully remove the rocker seats.
– Depending on the engine position, some rocker seats are under the tension of the valve springs.
– To prevent damaging the rocker seats, removal of the rocker seats must be carried out without tension in the valve springs.
– By cranking the crankshaft 1/3 turn, each time using the special tool (1903018), the rocker seats can be removed without tension:
1. Rocker seats for cylinders 1 or 6
2. Rocker seats for cylinders 2 or 5
3. Rocker seats for cylinders 3 or 4
2. If it is unnecessary to replace the rocker seats, mark the rocker seats so that they can be placed back in the same position.
Engine Cranking Tool
