Remove/Install Right Cylinder Head - AR01.30-P-5780SVZ
Engine 279 in model 223
MODIFICATION NOTES
| 17.06.2021 | Information added. | Operation step 16. |
| Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Notice | Notes on self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Remove/install | |||
| 1 | Remove engine from front axle carrier. | AR01.10-P-2510SVZ | |
| 2 | Remove transmission from engine. | AR27.10-P-0500SVZ | |
| 3 | Mount the engine on the assembly stand with the engine crane. | ||
| 000 588 27 31 00 Assembly stand for cars | WS01.00-P-0262B | ||
| 000 588 00 62 00 Load tilter | Engine crane |
WS01.00-P-0102B | |
| 4 | Remove front cap from cylinder head (11). | AR01.30-P-5712SVZ | |
| 5 | Remove charge-air distributor. | AR09.41-P-8683SVZ | |
| 6 | Remove the right exhaust gas turbocharger with the right exhaust manifold. | AR09.40-P-6038SVZ | |
| 7 | Place the piston of cylinder 1 at a 30° CKA (crank angle) after top dead center (for ignition TDC). | The timing chain can skip otherwise and engine damage can occur. |
Fig 5 |
| 8 | Remove the chain tensioner. | AR05.10-P-7800SVZ | |
| 9 | Remove screws (3). | *BA05.20-P-1001-02L | |
| 10 | Mark camshaft sprocket (2) and timing chain relative to each other. | ||
| 11 | Remove camshaft sprocket (2) together with timing chain. | Fig 1 | |
| 12 | Remove the slide rail bolts (6) and slide rail (7) from cylinder head (11). | Fig 4 | |
| Fig 6 | |||
| 13 | Remove screw/bolts (8) from cylinder head (11). | *BA01.30-P-1002-01Z | |
| 14 | Loosen and remove the cylinder head bolts (9, 10) in stages according to the loosening procedure. | Tightening specification | AR01.30-P-5800-07M |
| Loosening procedure Lubricate cylinder head bolts (9, 10) at threads and the bolt head contact surfaces. |
AR01.30-P-5800-09M | ||
| *BA01.30-P-1001-01Z | |||
| Fig 3 | |||
| 15 | Remove cylinder head (11). | Pay attention to pilot bushings for fixing the cylinder head (11) in place. |
|
| Clean | |||
| 16 | Clean the threaded holes as well as sealing surfaces on cylinder head (11) and cylinder crankcase. | Even the smallest amounts of aluminum oxide particles, grinding particles or wear debris entering the oil reservoir, the bearing points or the combustion chambers will cause damage and thus result in damage to the engine/major assemblies. |
AR01.00-P-0050-01A |
| Loctite 7063 (400 ml) cleaning spray | *BR00.45-Z-1046-04A | ||
| Loctite 7200 | *BR00.45-Z-1038-04A | ||
| Check | |||
| 17 | Check valves, valve seats and valve guides for damage. General information on checking valves, valve seats and valve guides |
If there is a problem, ↓ Replace corresponding component. |
AH05.30-P-1000-02SZ |
| AR05.30-P-3511SVZ | |||
| 18 | Check cylinder head bolts (9, 10) for a permissible dimension. | AR01.30-P-5800-03M | |
If there is a problem, ↓ Replace the cylinder head bolts (9, 10). |
*BE01.30-P-1001-04B | ||
| 19 | Check sealing surfaces between crankcase and cylinder head (11) for cracks, shrink holes, and flatness. Notes on application of flange sealants to seal major assemblies |
AH00.00-P-0500-01MNE | |
| *BR00.45-Z-1013-01A | |||
If cracks, shrink holes, or unevenness are present, ↓ Replace the crankcase/cylinder head (11). |
Fig 2 | ||
| 20 | Install in the reverse order. | ||
| Check | |||
| 21 |
Check, correct engine oil level. | AP18.00-P-1812A | |
| Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone. | AS49.00-Z-0001-01A | |
| 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. | AS00.00-Z-0005-01A | |
| 22 | Carry out engine test run and check engine for leak tightness. |
CYLINDER HEAD/CYLINDER HEAD BOLTS
| Number | Designation | Engine 279 | ||
|---|---|---|---|---|
| BE01.30-P-1001-04B | Cylinder head bolt | Thread diameter | M | 10 |
| Length (L) when new | mm | 168, 5 | ||
| Length (L) | mm | ≤170 | ||
| - | - | |||
CYLINDER HEAD
| Number | Designation | Engine 279 | |||
|---|---|---|---|---|---|
| BA01.30-P-1001-01Z | Screw/bolt, cylinder head to crankcase | M10 | Stage 1 | Nm | 40 |
| Stage 2 | ∠° | 90 | |||
| Stage 3 | ∠° | 90 | |||
CYLINDER HEAD
| Number | Designation | Engine 279 | ||
|---|---|---|---|---|
| BA01.30-P-1002-01Z | Screw/bolt, cylinder head to timing case cover | M6 | Nm | 9 |
CAMSHAFT, CAMSHAFT ADJUSTMENT
| Number | Designation | Engine 279 | ||
|---|---|---|---|---|
| BA05.20-P-1001-02L | Camshaft sprocket bolt | Stage 1 | Nm | 20 |
| Stage 2 | ∠° | 90 | ||
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1013-01A | Sealant, Loctite 5970, 50 ml | A 003 989 98 20 10 |
| BR00.45-Z-1038-04A | Loctite 7200 | A 010 989 90 71 |
| BR00.45-Z-1046-04A | Loctite 7063 (400 ml) cleaning spray | A 001 986 71 71 09 |