Order of execution
1. Reduce pressure in the supply system (cm. clause 3 of subsection 6.2.2).
2. Unscrew the valve plug from the distributor body (see fig. The main elements of the fuel injection system). Remove the sealing plug.
3. Remove the o-ring, shims, spring, plunger and second o-ring. Replace defective parts. It is not recommended to change the adjusting washers so as not to disturb the valve adjustment.
4. Assemble the valve in reverse order, replacing the O-rings. Tighten the valve plug to 25 Nm (2.5 kgf·m).
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