Great Wall Hover. Manual - part 5

Exhaust   system

N.m       Specific torque

Used component which can not be used any more.

end washer assembly

 exhaust pipe outlet nut

  front section of exhaust pipe

hexagon flange nut

cleaner cushion

assembly 1

fastening bolt of hoop

cleaner heat insulation cover clip

cleaner discharge pipe

       catalytic converter

three-hole rubber block

 cleaner cushion assembly 2

 hexagon flange nut

muffler assembly

muffler port decoration cover

hexagon flange nut

rear section assembly

of exhaust pipe

wahser assembly

100

9

63

5

23

m u f f l e r   d a m p i n g

ruber block assembly

Warning : All components of the exhaust air system should be

disassembled 30 minutes after shut down to avoid the human

injury caused by hot parts.

Removal of exhaust pipe assembly

Removal of exhaust tail tube

1. Firstly, use the M15 box spanner, ratchet wrench and extension

bar to remove the connecting nut of the rear flange of muffler

assembly and rear section flange of exhaust pipe, take out

the seal bush between the flanges.

2. Remove the three-hole rubber block on the back of the rear

section of exhaust pipe.

3.   Remove the three-hole rubber block on the front of the rear

section of exhaust pipe.

     Caution: The bush between the rear flange of muffler and

      rear section flange mainly has the function of sealing; it

     may  cause the great pressure and distortion after one

      installation, the sealing effect is worse, and the bush cannot

      be used repeatedly.

Removal of the muffler

1.  If necessary, dismantle the back section of exhaust pipe

according to the method of dismantling the exhaust pipe, if

not necessary, only remove the coupling nut between the

muffler and back flange of the exhaust pipe;

2.  Use the M15 sleeve, ratchet wrench or open-end (box) span-

ner to remove the coupling nut between the front flange of

muffler assembly and the rear flange of the cleaner; when

implementing this operation, there must be somebody to pull

the muffler to prevent it from falling only to cause damage;

brick of the muffler;

3.  Use the M13 sleeve, ratchet wrench to loosen the four nuts

     fixing the shock absorption rubber

4.  Then the muffler assembly can be removed.

     Caution:  The cleaner cushion assembly 2 between the

cleaner and the front section of the exhaust pipe mainly plays

a role of sealing; there may be great pressure and distortion

after one installation and the sealing effect is worse, this

bush cannot be used repeatedly.

Removal of cleaner

1

.  If necessary, remove the rear section of the exhaust pipe and

the muffler according to the dismantling methods of the

exhaust pipe and muffler; if not necessary, just loosen the two

nuts fixing the shock absorption rubber brick of the muffler;

2.  Remove the coupling nut between the front flange and the rear

flange of the front section of exhaust pipe;

3.  If the muffler has been removed, the cleaner can be taken out

directly; if the muffler is not removed, push the cleaner

backwards tenderly, keep certain space between the cleaner

and the muffler to make the welding bolt of the cleaner to

quit;

4.  At this time, the cleaner can be removed.

     Caution:  The cleaner cushion assembly 1 between the cleaner

     and the front section of the exhaust pipe mainly plays a role of

     sealing there may be great pressure and distortion after one

     installation, and the sealing effect is worse,  this bush cannot

     be used repeatedly.

Disassembly of front section of exhaust pipe

1. Remove the cleaner according to method of removal of cleaner;

2. Use the M18 box spanner, heavy-duty extension bar, ratchet

wrench to loose and remove the nut of exhaust pipe outlet,

then takes off the front section of exhaust pipe;

     Caution:   The two flat flanges use the interface cushion to

ensure the sealing, which is stainless steel punching unit,

and can be used for only once.

Installation of exhaust pipe assembly