Dacia Pick-Up 1304/1305/1307. Service manual — part 16
10
10 - 30
ENGINE AND LOWER ENGINE UNITS
CHECK OF THE GASKET PLANE DEFORMATION
The checking of the deformation of the gasket plane is done by means of a ruler and of a set
of gauges.
The maximum accepted deformation is: x = 0,05 mm.
If the maximum deformation exceeds this value,the gasket plane is corrected by grinding.
Before grinding water pump and tilters platform are to be dismounted.
The cylinder head shall be carefully positioned on the grinding machine in order to observe the
parallelism of the surfaces.
The maximum addition that may be ground: 0,5 mm.
If by grinding,the minimum accepted height is exceeded, the cylinder head is to be replaced
because by reducing the height,the compression ratio is altered.
MOUNTING
Perform the dismounting operations in the reverse order.
DISMOUNTING - MOUNTING
10
10 - 31
ENGINE AND LOWER ENGINE UNITS
PARTICULARITIES UPON RE MOUNTING
The contact surfaces of the gasket must be
clean.
The grease or antifreeze fluid must be
removed from the holes of the cylinder head fix-
ing screws by means of a.
This is necessary in order to obtain a
correct thightening of the screws and to avoid
the appearance of casing cracks.
Dismount the MOT 484 device for jackets
attachments.
Place the gasket with the marking “HAUT”
or “TOP” upwards.
Check if the hole in the gasket correctly overlaps the lubrication channel in the block.
Set the cylinder head and the fixing screws.
Tighten the screws at the required moment: 6,5 daNm.
Mount the tilters shafts in the holes where they have been dismounted.
Adjust the acceleration pedal stroke.
Fill and aerate the cooling system.
Check and adjust the engine running.
CYLINDER HEAD REPLACEMENT
Dismount the cylinder head.
Dismount the spark plugs.
Dismount:
- the water pump pulley;
- the water pump;
- the ylinder head closing plate;
- the alternator support.
Set the MOT 320 plate for vales support.
DISMOUNTING - MOUNTING
10
10 - 32
ENGINE AND LOWER ENGINE UNITS
Dismount the tilters platform.
Compress the valves springs by means of the
MOT 382 compressing device.
Take out the lock half cotters,release the
spring,take out the upper tray,the spring and the
lower tray.
Place the parts in order so that they may be
mounted back in the same place where they have
been dismounted from.
Remove the valves support plate,take out the
valves and set them in order.
Wash,clean and air blow the new cylinder
head.
Check the presence of the lubricating channels and valves state.
Perform the lapping of the valves on the cylinder head guiding ( this operation is also to be
performed when replacing the valves).
Mount the valves in the cylinder head and place the MOT 320 valves support plate.
Place in their previous positions:
- sealing gaskets of the valves shafts;
- the lower valve heads ;
- the valve springs;
- half cotters.
NOTE:
The valve springs are identical both for inlet and outlet.The springs are mounted
with the close coils towards the cylinder head.The end with close coils is marked with
green paint.
DISMOUNTING - MOUNTING
10
10 - 33
ENGINE AND LOWER ENGINE UNITS
Compress the springs by means of the MOT 382 compression device and mount the lock
half cotters.
Mount the cylinder head closing plate and the water pump with new gaskets.
Mount the alternator support.
Mount the cylinder head with new gasket observing the mounting instructions.
Mount the tilter shafts in the place where they have been removed from.
Adjust the tilters.
Mount the tilters cap.
Adjust the acceleration pedal stroke.
Fill and aerate the cooling system.
Check and adjust the engine(ignition,carburation).
Retightem the cylinder head after 800 km of driving.
VALVE SPRING REPLACEENT
( on car )
Disconnect the battery.
Disconnect the acceleration cable.
Dismount the tilters cap.
Dismount the spark plug.
Mount the MOT 61 device for valve
maintaining in the place of the spark plug.
Dismount the tilter shaft.
Compress the spring by means of the
MOT 382 compressing device and take out the
lock half cotters.
Take out the upper tray and the spring.
Clean the seat of the lower tray.
Place back in the previous site:
- new spring ( with the close coils
towards the cylinder head,the end marked with
green paint);
- the upper tray.
DISMOUNTING – MOUNTING
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст