2. Drain the coolant.
3. Install a dial indicator.
A) Turn out a bolt of a plug of a head of TNVD.
b) Through the adapter, install the dial indicator into the hole in the plug of the distribution head. The indicator needle should be on the pump plunger.
4. Rotate the crankshaft (clockwise) so that the mark on the pulley does not reach about 25-30°to the TDC indicator on the oil pump housing.
5. Disconnect the cold start timing machine:
A) Using a screwdriver, turn the control lever approximately 20°counterclockwise.
b) Install a metal plate 8-10 mm thick between the lever and the pusher of the cold start thermostat.
6. Check and adjust the injection advance angle.
A) Set the dial gauge to zero.
b) Slightly turning the crankshaft left and right, make sure that the indicator needle does not move away from zero.
V) Gently rotating the crankshaft clockwise, align the mark on the pulley with the TDC indicator on the oil pump housing.
G) Read the indicator readings:
Plunger stroke - 0.55 - 0.61 mm
7. If the plunger stroke does not correspond to the recommended values, then:
A) Turn away nuts of pipelines of a high pressure from TNVD.
b) Loosen injection pump fasteners (don't forget the back support).
V) Set the required plunger stroke by slightly turning the injection pump housing as shown in the figure.
If the plunger stroke is less than recommended, turn the injection pump towards the engine and vice versa.
G) Tighten the injection pump fasteners, the rear support bolt to 47 Nm, the flange nuts to 18 Nm.
d) Recheck the advance angle setting.
e) Tighten the high pressure fuel line nuts to 29 Nm.
8. Remove the metal plate between the lever and pusher of the cold start thermostat.
9. Remove the dial gauge. Install a new sealing washer on the pump head bolt and tighten to 17 Nm.
10. Bleed the fuel supply system by loosening the high pressure fuel line nuts on the injector side and turning the engine over with the starter. Tighten the high pressure fuel line nuts.
11. Start the engine and check for fuel leaks.