Chery A15. Manual - part 8

 

Check whether the TDC indicator on the cam 
shaft gear lines up with that on the front end of 
cylinder head. If not, rotate the crank shaft 
clockwise in one full circle to make them line up 
with each other. At this time, the engine is in the 
position of TDC of the first cylinder. 

 

 

In case the crank pulley and timing gear have 
been removed, the TDC for the first cylinder can 
be determined as follows:                                         

 

Rotate the crankshaft to make the TDC indicator 
on the crank pulley line up with that on the oil 
pump body. Check whether the TDC indicator on 
the cam shaft gear lines up with that on the front 
end of cylinder head. If not, rotate the crank shaft 
for one circle to make the cam gear indicator line 
up with that on the cylinder head. 

 

 

B-8

 

 

 

 

 

 

 

 

 

 

 

 

VALVE CLEARANCE 

VALVE MECHANISM COMPONENTS 

 

 

 

Exhaust valve (4 pcs) (LH)
Clearance: 0.046~0.095 
 
Intake valve (4pcs) (RH) 
Clearance: 0.02~0.069

 

Lower seat of valve

spring (8 pcs) 

Rocker arm stud (8 pcs)
Torque: 18~23Nm

 

Valve spring (8 pcs) 

Upper seat of valve
spring (8 pcs) 

Hydraulic tappet (8 pcs)
Clearance: 0.023~0.065

 

Rocker ram seat washer (8 pcs)

Valve keeper (16 pcs) 

Rocker ram seat (8 pcs) 

Rocker nut (16 pcs) 
Tightening torque: 25~29Nm

 

Rocker arm (8 pcs) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B-9

VALVE COVER AND GASKET 

 

Removal 

 

Remove 9 bolts to take out the cupped gasket
and high tension wire support, clutch and
throttle cable support. 

 

 

 

Remove the valve cover and gasket assembly. 

Take the sheet gasket out. 

 

Installation 
 

Clean the junction face of the cylinder head 
and the valve cover. 

Push the wedge of the sheet gasket for the 
valve cover into corresponding valve cover to 
integrate them. 

Install the combined valve cover and sheet 
gasket assembly on the cylinder head. 

Put 9 hexagonal-head long cylindrical end 
bolts into the cupped gaskets and supports and 
screw them into the cylinder head. 

Tighten the bolts in 2 steps according to the 
graphics and tightening order. First step: 
tighten them to the moment of 
4.0-6.0Nm.Second step: tighten them to the 
moment of 8.0-10.0Nm. 

 

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Cupped 
gasket 

Valve Cover

B-10

ROCKER MECHANISM 

 

Removal 

Loosen the rocker nuts to take them out. 

 

 

Take the level bracket out.   

Take the rocker arm out. 

Take the gasket of the level bracket out.   

Place each set of rock arm and level 
bracket in one same plastic bag for 
distinction. The removed rocker nuts 
cannot be reused. 

 

Installation: 

Check whether theire is abnormal abrasion on 
the contact surface of the rocker. Replace it if 
necessary.  

Put the rocker seat gasket into the stud.   

Lubricate the rocker arm and rocker seat by 
motor oil. 

Install the rocker arm and seat, screw in the 
new nuts by hands, then tighten them for the 
moment of 25—29N.m. 

 

Note: The corresponding hydraulic 

tappet shall be in the Min. 
position before each rocker 
arm is installed and tightened 
with nuts. 

 

B-11