1 | Air tube |
2 | Intake manifold |
3 | Rocker arm mechanism |
4 | Intake valve bridge |
5 | Push rod |
6 | Injector pressure line |
7 | Connection housing |
8 | Gasket |
9 | Connecting piece |
10 | Screws |
11 | Shifter lever support (trucks with advanced cab and buses) |
B01.30-0004-06
12 | Exhaust manifold and turbocharger |
13 | Constant throttles pipe (Top brake) |
14 | Crankcase bolt |
15 | Cylinder head |
16 | Cylinder head gasket |
17 | Air compressor cooling pipe |
18 | Cylinder head guides |
19 | Return pipe of the injectors |
B01.30-0006-06
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
| Remove/install | ||
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. | |
1 | Drain the cooling system | ||
Topical note | Notes on coolant | ||
| . | ||
Catch the coolant, change it if necessary. | |||
2 | Remove the cylinder head cover |
| |
3 | Remove the air duct (1) |
| |
4 | Remove the intake manifold (2) |
| |
5 | Remove the bolts (10) and move aside the shifter lever support (11) on the cylinder head (15) | Move the bracket (11) together with the shifting lever and rod so it does not interfere in the removal of the cylinder head (15). | |
.Gear lever support bolt | |||
6 | Remove the exhaust manifold with the turbocharger (12) |
| |
7 | Remove the injector pressure line (6) |
| |
8 | Remove the return line of the injection nozzles (19) on the cylinder head (15) | Installation: Replace the sealing washers. | |
9 | Remove the constant throttle 13) piping of the cylinder head (15) | Engines fitted with (top brake) constant throttles. | |
Installation: Replace the sealing washers. | |||
10 | Disconnect from the cylinder head (15) the pipe for air compressor cooling (17) | ||
11 | Remove the connection housing (7) | Installation: Replace the connection piece (9) and the gasket (8). | |
.Connection part of the cooling pump in the thermostatic valve head/cover | |||
12 | Remove the valve rocker arm mechanism (3). |
| |
13 | Remove the intake valve bridges (4) | ||
14 | Remove the tappet push rods (5) | Oil the push rods with engine oil. | |
15 | Remove the cylinder head bolts (14). |
| |
Oil the bolts of the cylinder head (14) with engine oil and follow the tightening diagram. | |||
.Crankcase bolt | |||
Socket | |||
16 | Remove the cylinder head (15) and the gasket (16) |
| |
In order not to damage the installed injection nozzle, lay the cylinder head (15), on its side. | |||
Installation: Replace the cylinder head gasket (16) and pay attention to their assembly position. Precisely fit the gasket and the cylinder head on the guides (18) | |||
Lifting device | |||
17 | Clean the threaded holes and the oil and coolant flow holes and at the engine block | Protect the block's surface to avoid dirt. | |
| Check | ||
18 | Measure the shank length (L) of the cylinder head bolts (14) | If the admissible length of the thread (L) is exceeded, replace the corresponding bolt of the cylinder head (14). | |
19 | Clean the cylinder head (15) and check for cracks | In case of irregularity, replace the cylinder head (15). | |
20 | Check the cylinder head (15) mating surface for unevenness |
| |
Engine 904, 906 in Type 384.067, 958 | |||
Machine the cylinder head mating surface if the unevenness is above the maximum permissible. | |||
.Maximum permissible flatness deviation of cylinder head mating surface | |||
21 | Check the flatness of the upper surface of the engine block |
| |
On engine blocks with cylinder liners, the surface of the cylinder liner collar must be flush or up to 0.04 mm below the engine block deck | |||
.Maximum admissible deviation of the flatness at the engine block surface | |||
22 | Install in reverse order | ||
| Check | ||
23 | Starting the engine | | |
24 | Check the engine oil pressure with the engine idling | | |
.Engine oil pressure, minimum permissible | |||
25 | Stop the engine and check for eventual leaks | ||
| . | ||
Control the engine oil level , 5 minutes after engine shutdown. | |||
26 | Check the coolant level | Reestablish if necessary. |
904 589 01 63 00
Lifting device
422 589 00 09 00
Socket
Documenti citati
- ah2000n208001a Avvertenze sul liquido di raffreddamento
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- ap2000b2080xa
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- ar0500b5521a
- ar0715b9235a
- ar0941b8620c
- ar0941b8681a
- ar1410b3915a
- as0000z000501a Pericolo di infortunio per l'avviamento fortuito del veicolo con motore in funzione. Pericolo d'infortuni a causa di schiacciamenti o ustioni in caso di interventi durante l'avviamento o il motore acceso
- as2000z000101a Pericolo di lesioni alla pelle e agli occhi dovute a spruzzi di liquido di raffreddamento ad alta temperatura. Pericolo di intossicazione in caso di ingerimento di liquido di raffreddamento