Dacia Pick-Up 1304/1305/1307. Manual - part 15

10

10 - 26

ENGINE AND LOWER ENGINE UNITS

Dismount the engine flywheel.
Check the marking of the  connecting rods:

number 1 towards the flywheel ond on the reverse
side of  the camshaft.

Dismount the connecting rods caps and the

half bushings and place them in order.

The bearing caps are marked from 1 to 5

number 1 towards the flywheel.

Dismount the bearing caps and the half bush-

ings and place them in order.

Dismount the crankshaft.

Dismount the half bushings from the

connecting rod and from the block and place them
in order.

Remove the axial clearance adjustment thrust

washers.

Take out the bearing annular oil seal.

 Rotate the engine by  180°, dismount the  MOT 484 device and  take out :

- the engine shield;
- the gaskets at the bottom of the jackets.

Dismount the block from the support.

DISMOUNTING - MOUNTING

10

10 - 27

ENGINE AND LOWER ENGINE UNITS

RETIGHTENING OF THE CYLINDER HEAD SCREWS

The re tightening of the cylinder head screws

is performed:

- for new cars.upon revision at 800-1000

km;

- upon an engine checking which requires

dismounting of the cylinder head;

- after every 10 000 km.

To re tighten, loosen the screw (1) by 1/4

turns,then tighten as per required moment:

- 6,5 daNm at warm (50 min.after engine

stop);

- 5,5 daNm at cold.

Repeat this operation alos for the others

screws in the tightening order specified in the
figure.

After re tightening the screws ,adjust the

tilters.

ADJUSTMENT OF THE TILTERS

Before adjusting the tilters check the

tightening of the platform.
    The  tightening moment of the platform fixing
screws: 1,5 – 1,75 daNm.
    When adjusting the tilters,the gear box shall
be in the dead point.
     The adjustment of tilters is to be done as per
method of the completely opened valve.

Rotate the engine until the the outlet valve of

cylinder is completely opened and perform the
adjustemnt by means of the MOT 13 device,tilter
adjusting wrench.

- inlet valve at cylinder 3;
- outlet valve at cylinder 4.

DISMOUNTING - MOUNTING

10

10 - 28

ENGINE AND LOWER ENGINE UNITS

Repeat the operation for  the  cylinders   3 - 4 - 2 according to the table:

O

UTLET

  

VALVE

 

COMPLETELY

  

OPENED

V

ALVE

 

TO

 

BE

 

ADJUSTED

I

NLET

  O

UTLET

1

 

 

 

    3

       4

3

 

 

 

    4

       2

4

 

 

 

    2

       1

2

 

 

 

    1

       3

Tilters clearance : at cold   - inlet   0,15 mm

;

             - outlet  0,20 mm;
at warm - inlet   0,18 mm;

 - outlet  0,25 mm.

The checking of the distance between the tilter and the valve is done by means of a distance

calliper (spy) at the corresponding dimension of the constructive cleranace.

The callipper should glide with easy friction between surfaces ( for a correct checking).

  CYLINDER HEAD

D

ISMO UNTING

Disconnect the battery.
Dismount the air filter.
Empty (drain) the cooling system:

- dismount the radiator plug;
- dismount the cylinders block plug.

Dismount the breaker-distributor.
Dismount the alternator belt.

DISMOUNTING - MOUNTING

10

10 - 29

ENGINE AND LOWER ENGINE UNITS

Dismount the alternator.
Dismount the acceleration and shock

cables.

Disconnect the thermocontacts.
Dismount the water hoses(cylinder head-

carburator; carburator-water  pump; water
pump- radiator).

Dismount the collector from the cylinder head.

Dismount the tilters cap.
Dismount the tilters shafts. Place them in order so that they may be mounted again in theeir

former place.

Dismount the fixing screws of the cylinder head except the central screw on the side of breaker

distributor which shall be  loosened.
     Because of  the  thightening, always when dismounting,the cylinder head gasket is stuck to the
casing or  the  cylinder head  the latter shall not be lifted in order to avoid the shifting of the jackets
and breaking of the sealing gaskets at their  bottom.
     In order to remove the gasket turn the cylinder head around the unscrewed screw.For cylinder
head displacement use a rubber or plastic hammer.

Unscrew the fixing screw.
Dismount the cylinder head.
Mount the MOT 484 device for jackets maintenance.
Clean the contact surfaces of the gasket ( cylinder block and cylinder head).

IMPORTANT

It  is forbiden the cleaning of the aluminium surfaces with the scrapper.For

cleaning the rests of the gasket material which might remain stucked on the cylinder
head, always use solvent products (such as Decanol or Asimilate) which can be then
easily removed by wiping  or scratching with a piece of wood , protecting in this way
the laying surface of the cylinder head on the cylinder block. Take care not to obturate
the lubricating grooves in the block and in the cylinder head (danger of getting the
cams and tilters jammed).All the impurities on the pistons head shall be blown with
air.

DISMOUNTING - MOUNTING