Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Belt of a streaming drive of auxiliary units
   - 6-cylinder petrol engines (M104.944 and M104.990/994)
      Cover of a head of the block of cylinders - installation details
      Removal and installation of the inlet pipeline with the resonator (except the engine 104.990)
      Final collector (except the engine M 104.990) - installation details
      Removal and installation of a head of the block of cylinders
      Removal and installation of a cover of a chain of a drive of GRM
      GRM drive - the general information, service of components
      Asterisk of a cranked shaft - installation details
      Removal and installation of a regulator of a camshaft
      Removal and installation of camshafts
      Replacement of directing plugs of valves
      Replacement of saddles of valves
      Removal and installation of pistons
      Replacement of piston rings
      Check of a condition of rods
      Check of a condition of a cranked shaft
      Service of the block of cylinders
      Removal and installation of the pallet of a case of the engine
      The oil pump - installation details
      The sensor switch of level of oil - installation details, verifying data
   + 8-cylinder petrol engines (M119.970/981 and M119.971/981)
   + 12-cylinder petrol engines (M120.980/982)
   + 6-cylinder diesel engines (OM603.971)
   + 6-cylinder diesel engines (OM606.961)
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



56822268



Removal and installation of camshafts

See also Section GRM Drive - the general information, service of components.

Removal

Removal of camshafts


1 — Natyazhitel of a chain of a drive of GRM
3, 5 — Asterisks of camshafts
6 — the Chain of a drive of GRM

25 — the Key
30 — the Forward cover
42 — the Top directing lever


Removal of camshafts

1, 4, 6, 7, 8, 11, 13, 14 — Covers of bearings of camshafts

2 — the Inlet camshaft
3 — the Final camshaft


 PERFORMANCE ORDER

1. Establish the piston of the first cylinder in situation 30 ° before VMT.
2. Remove a natyazhitel of a chain.
3. Remove a forward cover (30) and the top directing lever (42).
4. Mark the provision of asterisks of camshafts concerning a chain of a drive GRM (6) (arrow).
5. Unscrew an asterisk (3) final camshafts.
6. Remove a chain of a drive of GRM (6) from asterisks (5) inlet camshafts.
7. Turn camshafts by means of a key so that cams of camshafts of the second cylinder established the hydrojack in average situation.
8. Unscrew bolts of fastening of covers of bearings (1), (4), (6) and (7) final and (8), (11), (13) and (14) inlet camshafts. Camshafts cannot be turned during an otvorachivaniye or weakening of bolts of covers of bearings.
9. Unscrew bolts of fastening of other covers, and remove camshafts.

Installation

Installation of camshafts


2, 3, 5, 9, 10, 12 — Covers of bearings 13, 14 — Camshafts

 PERFORMANCE ORDER

1. Check hydrojacks.
2. Grease all hydrojacks and covers of bearings.
3. Establish camshafts in a bed of bearings at position of the piston of the first cylinder in situation 30 ° before VMT.
4. Establish covers (2), (3) and (5) final and (9), (10) and (12) inlet camshafts.
5. Tighten bolts of fastening of covers of bearings of camshafts the moment of 21 Nanometer.
6. Establish other covers of bearings and tighten fastening bolts.
7. Establish an asterisk of a final camshaft and wrap fastening bolts.
8. Establish a chain on asterisks of camshafts on earlier made labels.
9. Establish a forward cover and the top directing lever, a natyazhitel of a chain of a drive of GRM.
10. Check the control provision of camshafts.
11. On camshafts there is a code designation on the third neck (arrow) (behind a bearing cover) or paint on a camshaft flange.
12. Covers of bearings have designations. Numbering of covers of bearings is poured out on a head of the block of cylinders. Covers of bearings should be established according to a digital code. The inlet camshaft can be removed or established together with an asterisk.
13. The repair sizes of bearings of camshafts are specified in Specifications.