Timing gear casing - Remove/install lower cover

AR01.40-P-8002MFC

Timing gear casing - Remove/install lower cover

24.03.2020

Engine

260 in model 118, 177, 247

1

Upper timing case cover

2

Electrical wiring harness

3

Coolant line

3s

Bolts

4

Purge line

4s

Screw

5

Guide pulley

6

Electrical connector

7

Electrical line

8

Electrical connector

Y130

Engine oil pump valve

9

Screws (4 pcs)

10

Screws (10 ea.)

11

Front radial shaft sealing ring

1

Upper timing case cover

12

Dowel pins

13

Timing case cover

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Caution

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

 Caution

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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Remove/install

1

Remove engine with transmission.

Engine 260 in model 118, 177, 247

Engine 260 in model 118, 177, 247 with transmission 724.1

AR01.10-P-2401MFJ

Engine 260 in model 118, 177, 247 with transmission 724.0

AR01.10-P-2401MFC

 Installation: Only install upper engine cover and lower engine cover after leak test.

2

Remove transmission from engine.

Engine 260 in model 118, 177, 247

Engine 260 in model 118, 177, 247 with transmission 724.0

AR27.10-P-0009MFC

Engine 260 in model 118, 177, 247 with transmission 724.1

AR27.10-P-0009MFA

 Commercially available devices/tools
Engine crane

 Aid of helper required.

3

Attach engine to assembly stand.



000 588 00 62 00 Load tilter

WS01.00-P-0102B



000 588 00 31 00 Assembly stand for cars

WS01.00-N-3028B

 Commercially available devices/tools
Engine crane

 Aid of helper required.

4

Remove upper timing case cover (1).

AR01.40-P-8001MFC

5

Remove refrigerant compressor.

AR83.55-P-5310MFD

6

Remove coolant pump.

AR20.10-P-1271MFC

7

Remove clamping device from poly-V-belt.

AR13.25-P-3220MFC

8

Remove torsional damper.

AR03.30-P-1600MFC

9

Remove oil pan.

AR01.45-P-7500MFC

10

Release and disconnect electrical connector (6) from engine oil pump valve (Y130).

11

Unclip electrical wiring harness (2) from coolant line (3) and place to one side.

12

Remove screws (3s) and remove coolant line (3).

 Hose clamp pliers

*454589003700

 Pliers for click clamps

*177589003700

13

Remove screw (4s) of purge line (4) on timing case cover (13) and remove purge line (4).

 Installation: Replace seal.

14

Remove guide pulley (5).

 Screw/bolt, guide pulley to timing case cover

*BA13.25-P-1002-01Z

15

Remove screws/bolts (9).

 Bolt, cylinder head to timing case cover

*BA01.30-P-1002-01Y

16

Remove screws (10) in reverse order to tightening procedure for timing case cover (13).

AR01.40-P-8000-01MFC

 Installation: Pay attention to different lengths of screws.

 Bolt, timing case cover to crankcase

*BA01.40-P-1001-01K

17

Release and disconnect electrical connector (8) from engine oil pump valve (Y130).

18

Use suitable tool to remove timing case cover (13).

Notes on sealant path for timing case cover

AH01.40-P-1000-01MFC

 Installation: Replace front radial shaft sealing ring (11).

 Installation: Ensure that dowel pins (12) are seated correctly.

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

 Application gun

*112589002500

19

Remove electrical connector (6) from timing case cover (13) with electric line (7) attached.

If the timing case cover (13) is replaced.

 Installation: Replace seal.

20

Clean sealing surfaces.

AR01.00-P-0050-01A

Notes on application of flange sealants to seal major assemblies

AH00.00-P-0500-01MNE


Do not use any sharp-edged tools or abrasive paper.
The sealing surfaces can be damaged otherwise.

Loctite 7200

*BR00.45-Z-1038-04A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

21

Install in the reverse order.



Check

22

Check engine oil level and correct if necessary.



AP18.00-P-1812MFA

23

Check cooling system for leaks.

AR20.00-P-1010MFD

 Warning

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 hazard area.

AS49.00-Z-0001-01A

 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.

AS00.00-Z-0005-01A

24

Perform engine test run. While doing so, check engine for proper operation and leak tightness.

 Cylinder head

Number

Designation

Engine 260

BA01.30-P-1002-01Y

Bolt, cylinder head to timing case cover

M8

Nm

20

 Crankcase, timing case cover, end cover

Number

Designation

Engine 260

BA01.40-P-1001-01K

Bolt, timing case cover to crankcase

M6

Nm

9

M8

Stage 1

Nm

-

Stage 2

Nm

-

M10

Nm

-

 Belt tensioning device

Number

Designation

Engine 260

BA13.25-P-1002-01Z

Screw/bolt, guide pulley to timing case cover

Nm

20

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

Henkel AG & Co. KGaA
http://www.loctite.de

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09