2.5.2. Removal, check and installation of the oil pump

Remove a belt of a drive of the gas-distributing mechanism.

Unscrew bolts of fastening of an oil case.

Remove an oil case.

Remove a maslopriyemnik of the oil pump.

Fig. 2.187. Oil pump assembled

Remove a forward cover of the block of cylinders (the case of the oil pump) assembled (fig. 2.187).

Remove a forward cover of the block of cylinders (the case of the oil pump) assembled.

Take out conducting and conducted gear wheels from a forward cover of the block of cylinders. And conducted gear wheels are put on the leader adjusting labels.

Check a forward cover of the block of cylinders on existence of cracks or damages and if necessary replace it.

Check a forward epiploon of a cranked shaft on existence of wear or damage of working edges.

Check an oil case on existence of breakages, damages or cracks and if necessary replace it.

Check a maslopriyemnik on existence of breakages, damages or cracks and if necessary replace it.

Check surfaces of contact of the case of the oil pump with pump gear wheels on existence of damages or wear.

Check teeths of gear wheels on existence of wear or damages.

Fig. 2.188. Check of a radial gap between external diameter of a conducted gear wheel and a nest in the pump case by means of flat щупа

Check a gap between external diameter of a conducted gear wheel and a nest in the pump case (fig. 2.188).

The radial gap between external diameter of a conducted gear wheel and a nest in the case of the pump should make 0,120–0,185 mm.

The gap between teeths of gear wheels should make 0,025–0,069 mm.

Gap between end faces of gear wheels and the plane of the case of the pump, mm:

– a conducted gear wheel – 0,04–0,09;

– a leading gear wheel – 0,040–0,085.

Fig. 2.189. Gap check between teeths of gear wheels by means of flat щупа

Check a gap between teeths of gear wheels of the pump (fig. 2.189).

Fig. 2.190. Gap check between end faces of gear wheels and the plane of the case of the pump by means of flat щупа

Check a gap between end faces of gear wheels and the plane of the case of the pump (fig. 2.190).

Check ease of moving of a plunzher of the reduktsionny valve in a nest of the case of the pump.

Check a spring of the reduktsionny valve on existence of deformation and breakage of rounds.

Length of a spring of the reduktsionny valve, mm:

– in a free condition – 46,6;

– under load of 6,1 kgfs – 40,1.

Fig. 2.191. Combination of the leader ivedomy gear wheels

Establish in a forward cover of the block of cylinders (the case of the oil pump) conducting and conducted gear wheel, watching their correct arrangement on labels (fig. 2.191).

Establish a cover of the oil pump and tighten bolts of fastening the specified moment. After an inhaling of bolts check smoothness of rotation of gear wheels of the pump.

Moment of an inhaling of bolts of fastening of a cover of the oil pump: 8–12 N · m.

Establish a plunzher and a spring of the reduktsionny valve, previously having covered with engine oil a plunzher. Tighten a stopper of the reduktsionny valve the specified moment.

Moment of an inhaling of a stopper of the reduktsionny valve: 40–50 N · m.

Fig. 2.192. Bolts of fastening of a forward cover of the block of cylinders (are designated by Latin letters)

Establish a forward cover of the block of cylinders with new laying and tighten fastening bolts (fig. 2.192.) the specified moment.

Moment of an inhaling of bolts of fastening of a forward cover of the block of cylinders: 20–27 N · m.

Length of bolts:

А: 30 mm;

В: 45 mm;

С: 60 mm;

D: 22 mm.

Fig. 2.193. Installation of the special tool

Establish the special tool (the directing plug of an epiploon 09214-32100) in an opening of the case of the oil pump (fig. 2.193).

Fig. 2.194. Press fitting of a forward epiploon of a cranked shaft

Press an epiploon in an opening of a forward cover of the block of cylinders an opravka (fig. 2.194).

Establish a maslopriyemnik.

Clear both parties of laying of an oil case and a being interfaced surface of the block of cylinders.

Fig. 2.195. Hermetic drawing on a flange of an oil case

Put hermetic in a flute of a flange of an oil case (fig. 2.195).

NOTE The thickness of the roller of hermetic should make about 4 mm.

The oil case should be established not later than through 15 mines after hermetic drawing.

Establish an oil case and tighten bolts of its fastening the specified moment.

Moment of an inhaling of bolts of fastening of an oil case: 10–12 N · m.

Check of the sensor of a control lamp of pressure of oil

Fig. 2.196. Stock-taking of an electric chain between a conclusion and the sensor case by means of an ohmmeter

Check an ohmmeter existence of an electric chain between a conclusion and the sensor case (fig. 2.196). In the presence of break of a chain replace the sensor.

Fig. 2.197. Stock-taking of an electric chain between a conclusion and the sensor case by pressing a sensitive element of the sensor by means of an ohmmeter

Check existence of an electric chain between a conclusion and the sensor case by pressing a sensitive element of the sensor (fig. 2.197). If by pressing a sensitive element the chain is not disconnected, replace the sensor.

Create in the sensor depression in size of 50 kPas through an opening for an oil supply. If thus the electric chain between a conclusion and the case of the sensor is not present, the sensor is serviceable.

Be convinced of tightness of the sensor. Existence of leak indicates break of a diaphragm of the sensor. The sensor with the damaged diaphragm replace.