Chery QQ6 (S21) / S12LHD. Manual — part 226

1.5 Insert the special tool CH-20003 into the timing hole

and tighten, use a wrench to turn the big nut in the

crankshaft pulley to make the crankshaft rotate, at the

same time, slowly screw in CH-20003 until the

crankshaft can not rotate back and forth any longer.

1.6 Use a 13# sleeve to remove the six fixing bolts of

crankshaft pulley and take out the crankshaft pulley.

Torque: 55+5 Nm.

1.7 Use a 10# sleeve to remove the six fixing bolts on

timing lower cover.

1.8 The positions of the six fixing bolts on timing lower

cover are shown by the red circles in the figure.

1.9 It should be specially explained that, the position of

the fixing bolt at left upside on the lower cover is very

occult, for removal of which, use of universal joint

connecting rod is required. Alternatively, use a 13mm

sleeve to remove the three bolts of suspension bracket to

take off the suspension bracket.

1.10 Use a 10# sleeve to loosen the fixing bolt of the

tension pulley to take off the timing belt.

Torque: 27±3 Nm.

Note:

when taking off the timing belt, pay

attention to running direction of the belt

and refer to running direction of the engine

crankshaft and the arrowhead direction on

the belt.

II. Installation of Timing Belt

1. Loosen the fixing bolt of tension pulley and turn the

tension pulley to minimum tension position.

2. Install the belt.

3. Use a 5mm hexagon wrench to turn the tension

pulley, when it turns to a position that the hexagon

wrench and the fixing bolt are roughly on the same

horizontal line, stop and tighten the fixing bolt.

4. Install timing lower cover.

5. Install crankshaft pulley.

6. Install relevant accessories and check deflection of

the belt.

7. Install timing upper cover.

8. The installed timing belt is as shown in the figure.

Note:

During the disassembly process, be

sure not to turn crankshaft/camshaft;

otherwise, ignition timing will need

re-check.

III. Adjustment of Timing (general overhaul)

1. Turn the crankshaft to make the four pistons align on a horizontal line in the cylinders, screw

the special tool into the crankshaft timing adjusting hole at left rear of the cylinder (last segment

of the crankshaft), and then make the crankshaft unable to turn left and right (the bolt of the

special tool must enter into the screw hole plane of the cylinder).

2. After intake and exhaust camshaft is installed properly, install the camshaft timing gear, turn the

groove at tail of intake and exhaust camshaft to horizontal direction, and then insert the special

tool into the groove and fix.

3. After crankshaft and camshaft have been fixed according to requirements, install timing belt. In

order to facilitate installation of timing belt, temporarily do not tighten the bolt fixing the timing

gear onto camshaft and let it rotate freely, then fix the timing gear bolt after the tensioner pulley

has fastened the timing belt to the specified value. After that, install other parts.

IV. Adjustment of Timing (minor overhaul)

Replace valve spring, grind valve and replace camshaft (do not raise the engine).

1. Remove the valve cover.

2. Remove the timing gear cover. Turn the timing gear.

3. Let the groove at tail of intake and exhaust camshaft on a horizontal line, then insert the

projecting portion of the special tool into the groove and fix.

4. Turn the crankshaft, screw the special tool into the crankshaft timing adjusting hole at left rear

of the cylinder (last segment of the crankshaft), and then make the crankshaft unable to turn

left and right (if the cylinder head is removed, it can be found that the pistons of the four

cylinders now align at a horizontal position).

5. Install timing belt and make tightness of the belt conform to requirements.

6. Fasten the fixing bolt of timing gear.

7. Install other accessories, such as timing cover and belt pulley etc.

Special tool for camshaft timing check Special tool for crankshaft timing check

(CH-20010)

(CH-20003)

Chapter Nine Disassembly of Engine Assembly

I. Disassembly Procedure

1. Disassembly of engine wire harness

1.1 Pull out the connecting plug of engine wire harness.

1.2 Use a 10# sleeve to loosen the fixing bolt of engine

ground.

2. Use a 10# sleeve to remove the fixing bolt and bearer

of battery.

Note:

Please use regular equipment, especially for such

equipment as crane etc., so as to avoid occurrence of accident.

Before any disassembly job, disassemble cathode of battery

first, so as to protect safety of electricity consumption equipment.

When disassembling engine suspension, pay attention to

disassembly order, so as to avoid occurrence of accident.