T01.30-0014-06
1 Banjo bolt
2 Sealing ring
3 Coolant vent line
4 Banjo bolt
5 Sealing ring
6 Constant throttle for pneumatic line
7 Banjo bolt
8 Sealing ring
9 Fuel leak line
10 Screw/bolt
11 Rocker arm bracket
12 Tappet rod
13 Valve bridge
14 Cylinder head bolt
15 Cylinder head
16 Cylinder head gasket
17 Fitting sleeve
| Remove/install | ||
1 | Open maintenance flap | - Engine compartment flap at rear, - Interior flap above engine. | |
Danger! | Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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. Wear protective gloves, protective clothing and safety glasses. | |
2 | Drain coolant | ||
| Replace coolant | ||
| Notes on coolant | ||
Danger! | Risk of explosion caused by oxyhydrogen gas. Risk of poisoning and caustic burns caused by swallowing battery acid. Risk of injury caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries | No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers. | |
3 | Disconnect electric cables at battery | ||
Danger! | Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | |
4 | Remove turbocharger | ||
5 | Remove exhaust manifold | ||
6 | Remove charge air manifold | ||
Danger! | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel | No fire, sparks, open flames or smoking. Wear protective clothing when handling fuel. | |
7 | Remove MR/PLD injection lines | ||
8 | Remove cylinder head cover | ||
9 | Remove fuel leak line (9) | Installation: Install new sealing rings (8). The connections of the leak lines must lie in a row. | |
| |||
10.1 | Remove pneumatic throttle air line (6) from cylinder head (15) | Only if there is a constant throttle present. | |
Installation: Replace sealing rings (5). | |||
| |||
11 | Detach coolant vent line (3) | Installation: Install new sealing rings (2). | |
| |||
12 | Remove rocker arm bracket (11) and valve bridges (13) | ||
13 | Remove cylinder head bolts (14) and cylinder head (15) | The cylinder head must always be set aside with installed injection nozzles if there is any danger of damage occurring. The injection nozzles project out of the cylinder head. | |
Installation: Light oil cylinder head bolts and tighten according to specifications. | |||
Tightening specifications for cylinder head bolts | |||
| |||
14 | Take cylinder head gasket (16) off crankcase | Installation: Clean contact surfaces for cylinder head (15) and cylinder crankcase. | |
| Checking | ||
15 | Check contact surface of cylinder head | Check for: - damage, - corrosion, - diagonally for flatness. | |
Straightedge | |||
If damage present: | |||
Face grind contact surface of cylinder head | |||
16 | Measure shank length of cylinder head bolts (14) | If the specified shank length is exceeded: replace cylinder head bolts. | |
17 | Install in the reverse order | Installation: Steps 14 - 1. |
Check values for cylinder head bolts
Check values for cylinder head
Number | Designation | Engine 457.9 | ||
BE01.30-N-1002-02K | Permissible variation in flatness of lower contact surface in a longitudinal direction | Over a length of 150 mm | mm | 0.015 |
Cylinder head
Number | Designation | Engine 457.9 | ||
BA01.30-N-1001-01J | Cylinder head bolt to crankcase | Stage 1 | Nm | 10 |
Stage 2 | Nm | 50 | ||
Stage 3 | Nm | 100 | ||
Stage 4 | Nm | 200 | ||
Stage 5 | ° | 90 | ||
Stage 6 | ° | 90 | ||
See picture | -̧ | |||
BA01.30-N-1003-01J | Banjo bolt, coolant vent line to connection fitting | Nm | 35 | |
BA01.30-N-1004-01J | Banjo bolt, constant throttle pressure line to cylinder head | Nm | 45 | |
BA01.30-N-1005-01J | Banjo bolt, fuel leak line to cylinder head | Nm | 15 | |
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