3.8. Oil pump of the DOHC engine

1 – mesh oil filter;
2 – bolt, 15–22 N • m;
3 – laying;
4 – stopper;
5 – spring;
6 – bolt, 20–27 N • m;
7 – forward sealing ring;
8 – forward cover;
9 – internal gear wheel of the oil pump;
10 - external gear wheel of the oil pump;
11 – cover of the oil pump;
12 - laying;
13 – bolt, 6–8 N • m;
14 – oil pallet;
15 – laying;
16 – stopper, 35–45 N • m;
17 – plunger;
18 – oil filter.

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. Turn out 2 bolts and remove a mesh oil filter with a maslopriyemny pipe.
5. Remove a forward cover.
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 the oil pallet for lack of cracks or damages and if necessary replace it.
2. Check an oil filter for lack of cracks or damages and if necessary replace it.
3. 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.
4. Check lack of wear or damage of teeths of gear wheels of the oil pump.
5. 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
6. 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
7. 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: 0,04–0,085 mm

Installation

Oil pump

PERFORMANCE ORDER
1. Establish external and internal gear wheels of the oil pump in a forward cover, previously having combined the tags put earlier.
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 moment: 6–8 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 moment: 40–50 N • m