db57d230

2.1.7. Forward cover and oil pump

1 – stopper, 40–50 N • m;
2 – sealing ring;
3 – plunger;
4 – bolt, 12–15 N • m;
5 – forward sealing ring;
6 – forward cover;
7 – internal gear wheel of the oil pump;
8 – external gear wheel of the oil pump;
9 - cover of the oil pump;
10 – laying;
11 – laying;
12 – maslozaborny tube;
13 – bolt, 15–22 N • m;
14 – oil pallet;
15 – oil filter.

Prevention

At installation of a stopper it is necessary to use a new sealing ring.


Removal

PERFORMANCE ORDER
1. Take off a gear belt.
2. Turn out all bolts of fastening of the oil pallet.
3. Remove the oil pallet.
4. Remove an oil filter.
5. Remove a forward cover from the block of cylinders.
6. Uncover the oil pump.
7. Remove internal and external gear wheels of the oil pump from a forward cover, previously having noted their mutual situation.
8. Turn out a stopper and remove a spring and a plunger.

Check

PERFORMANCE ORDER
1. Check a forward cover for lack of cracks or damages and if necessary replace it.
2. Check a forward sealing ring for lack of wear or damage of working edges and if necessary replace it.
3. Check a condition of the oil pallet and if necessary replace it.
4. Check a mesh oil filter for absence of damage and if necessary replace it.
5. Check a forward cover for lack of wear or damages to places of contact with gear wheels of the oil pump and if necessary replace it.
6. Check a condition of the safety valve installed in a forward cover.
7. Check a form and absence of damage of a spring of the safety valve.

Spring length in a free state: 46,6 mm
Length under loading: 6,1 kg / 40,1 mm

8. Check lack of wear or damage of teeths of gear wheels of the oil pump.
9. Measure by the probe a gap between a gear wheel of the oil pump and a nest in a cover.

Maximum permissible gap of an external gear wheel of the oil pump: 0,12–0,18 mm

10. Measure by the probe a gap between teeths of gear wheels of the oil pump.

Maximum permissible gap between teeths of gear wheels of the oil pump: 0,001–0,003 mm

11. Measure by a metal ruler and the probe a side gap of gear wheels of the oil pump.

Maximum permissible side gap of rotors of the oil pump: 0,04–0,06 mm


Installation of a forward cover

PERFORMANCE ORDER
Establish a forward cover with new laying and fix by bolts, having tightened them the required moment.

Length of bolts: And – 25 mm; In – 28 mm; With – 45 mm; D – 60 mm; the inhaling moment – 12–15 N • m

Installation of a forward oil sealing ring

PERFORMANCE ORDER
1. Check a forward sealing ring for lack of wear or damage of working edges and if necessary replace it.
2. Check a condition of the spring ring which is pressing out working edges of a sealing ring.
3. Grease an external surface of a new sealing ring with engine oil. Establish by the special tool 09231-22100 or the plug of the corresponding diameter a sealing ring on a bent shaft to a contact of a forward cover.
4. Establish by the special tool 09231-22000 a sealing ring against the stop in a nest of a forward cover.
5. Establish a pulley of a bent shaft, a gear belt and a pulley of a bent shaft.
6. Establish an oil filter.
7. Clear the interfaced surfaces of the oil pallet and the block of cylinders of the remains of old laying.
8. Apply a continuous layer of sealant with a diameter of 4 mm on the interfaced surface of the oil pallet. Around openings for bolts sealant have from the inside. After putting sealant it is necessary to install the pallet no more than in 15 min.
9. Install the oil pallet on the block of cylinders and fix by bolts.

Inhaling moments: 6–8 N • m


Installation of the oil pump

PERFORMANCE ORDER
1. Establish external and internal gear wheels of the oil pump in a forward cover.
2. Establish a cover of the oil pump and fix it by bolts. After tightening of bolts be convinced that gear wheels are turned easily and smoothly.

Inhaling moments: 6–9 N • m
3. Install the safety valve, a spring and wrap a stopper, having tightened it the required moment. Before installation oil the safety valve engine.

Inhaling moments: 40–50 N • m