Chery A15. Manual — part 239

Section Eight Engine Lubrication System

One. Composition of Lubrication System

Figure 92 Composition of Lubrication System

Two. Engine Oil Pump
1. Sturcture


1-Timing chain cover oil seal
2-Engine oil pump
3-Pressure safety valve





Figure

93

Engine

Oil

Pump

Structure

2. Engine oil pressure test
(1) Unfix the engine oil pressure switch
(Figure 94).
(2) Fix the engine oil pressure gauge.
(3) Heat up the engine to normal
working temperature.
(4) Monitor the pressure at 3,000rpm.
See Specifications.


1-Engine oil filter cover
2-Engine oil chamber
3-Engine oil pressure switch
4-Oil ring





Three. Engine oil filter
1. Unfix the engine oil filter element
a) Continuously turn the engine oil filler
cover and take out the oil filter element
(Figure 95).
b) Unfix the engine oil filter (Figure 95).
c) Unfix the used O-ring.

1-Rubber seal
2-Engine oil filter element.
3-Central tube
4-Spring
5-O-ring
6-Cover
7-Relief valve
8-Central hole
9-Oil pipe

Figure 94 Engine Oil Filter

Figure 95 Engine Oil Filter

2. Fixing the engine oil filter element
(1) Fix the new O-ring (Figure 95).
(2) Fix the new engine oil filter element
(Figure 95).

(3) Fix the engine oil seal.
(4) Screw tight the engine oil filter cover
with a torque of 25N.m.
(5) Add 4L of engine oil.
(6) Start the starter and check for any oil
leakage.


Four. Engine oil filter
1-Engine oil pressure switch
2-Safety valve
3-Check valve
4-Seal
5-Relief valve


Engine oil filter internal oil circuit
diagram

• The oil is pumped to push open the

check valve and into the filter where
it goes through the filter element into
the main pipeline.

• In the case of clogged filter elment,

the engine oil will push up the filter
element to actuate the relief valve,
which opens and reduces the engine
oil pressure. And then the engine oil
pressure switch is actuated and the
engine oil flows onto the crankcase
oil tray; meanwhile, the engine oil
pushes open the safety valve to flow
directly into the main pipeline and
the crank shaft and cylinder cover
assembly can still be lubricated.

Figure 96 Engine Oil Filter

Engine oil
filter element
oil outlet pipe

Engine oil
filter element
pressure spring

Engine oil
filter
element

Relief valve
switch
spring

Safety
valve

Check
valve

Relief
valve

Crankcase
oil tray

Main
pipeline

Engine oil
pump

1. Unfixing
(1) Jack up the car
(2) Detach the engine oil pressure switch
fittings.
(3) Unfix the engine oil filter (see 9-
Engine/Lubrication/Engine Oil Filter –
Unfixing).

(4) Unfix the engine oil filter fittings off
the cylinder body.
(5) Take out the engine oil filter.
2. Fixing
(1) Check and clean the sealing surfaces
of engine oil filter.
(2) Replace the engine oil filter seal
(Figure 97).
(3) Fix the engine oil bracket fittings
with a torque of 28N.m.
(4) Fix the engine oil filter (see 9-
Engine/Lubrication/Engine Oil Filter –
Fixing).
(5) Connect the engine oil pressure
switch plug.
(6) Lower the car.
(7) Start the engine and check for any
leakage.
(8) Shut off engine and check engine oil
level.

1-Engine oil chamber
2-Engine oil filter chamber
3-Engine oil pressure switch
4-Seal




Five. Engine crankcase oil tray
1. Unfix the crankcase oil tray
(1) Detach the storage battery cathode
(2) Jack up the car
(3) Unfix the front right wheel.

Figure 97 Engine Oil Filter

Figure 98 Compressor Lower Bracket

(4) Unfix the guard board of the driving
belt.
(5) Drain the engine oil.
(6) Unfix the lower bracket of the
compressor (Figure 98).