Mercedes S-Class W-140

1991-1999 of release

Repair and car operation

Heads of the block of cylinders

Removal

Details of installation of the left head of the block of cylinders


11 — the Bolt 12 — the Arm 13 — the Cover of the bearing of a camshaft 16 — the Head of the block of cylinders 18 — Laying 19 — the Ventilating tube 22 — the Exhaust pipe

Details of installation of the left head of the block of cylinders


10 — the Branch pipe of system of cooling 18 — Laying

Details of installation of the right head of the block of cylinders


1, 5 — Tubes of supply of air 6 — the Directing pipe of the index of level of oil 7 — the Index of level of AT oil 8 — the Tube of ventilation of a case 9 — the Branch pipe of system of cooling

Details of installation of the right head of the block of cylinders


11 — the Bolt 12 — the Arm 13 — the Cover of the bearing of a camshaft 14 — the Head of the block of cylinders 17 — laying

Removal of heads of the block of cylinders with camshafts and final collectors probably only after complete cooling of the engine!

PERFORMANCE ORDER

1. Establish the piston of the first cylinder in situation 30 ° after VMT. In this situation camshafts can be turned without impact of valves and pistons.

2. Mark the mutual provision of asterisks of camshafts concerning a chain of a drive of GRM.

3. On the left head of the block of cylinders: lift the receiver (5) ventilations of a case.

4. On the left head of the block of cylinders remove a finger (1) directing lever by means of a stripper and a carving insert.

5. Unscrew the filter of the pump of a podmeshivaniye of air in an exhaust and remove it.
6. Unscrew tubes of supply of air from the pump of a podmeshivaniye of air in an exhaust. On the right head of the block of cylinders one bolt is on a head, one bolt on an arm of the engine and one bolt on the pallet of a case of the engine. On the left head of the block of cylinders: one bolt - on a head, one - on the block of cylinders below a final collector and one - on the left arm of the engine.

7. Unscrew directing pipe of the index of level of oil. On the right head of the block of cylinders unscrew directing pipe (7) щупа measurements of level of ATF from the block of cylinders and transmission.
8. On the right head of the block of cylinders unscrew also a tube of ventilation of a case (8) from a head of the block of cylinders (shooter).

9. Unscrew a final collector in a back part of the block of cylinders.

10. Merge cooling liquid from the block of cylinders. For this purpose unscrew jams (shooter) with consolidations. Moment of a tightening of 30 Nanometers.

11. Operating as it should be, the return shown on an illustration, weaken bolts of fastening of a head of the block of cylinders as it should be, the return to a tightening order, since the 14th.

12. Establish an elevating eye on a head of the block of cylinders. Unscrew a cover of the 1st bearing of a final camshaft on the right head of the block of cylinders and establish an arm with directing plugs (18a). Unscrew a cover of the 2nd bearing of a final camshaft on the left head of the block of cylinders and establish an arm with directing plugs (18a). Moment of a tightening of 21 Nanometer.

13. Attach the lift to an arm and a back elevating point of the engine, lift and remove a head of the block of cylinders.

Do not damage tension and directing levers!

14. Check a contact surface of a head of the block of cylinders.

Installation

PERFORMANCE ORDER

1. Establish laying. Pay attention to an arrangement of directing fingers (1) and directing plugs (2) for an arrangement of a head of the block of cylinders.
2. Check bolts of fastening of a head of the block of cylinders. 3. Grease a carving part of bolts and contact surfaces of heads of the block of cylinders with impellent oil and insert them.
4. Tighten fastening bolts in strictly certain order.
5. Further installation is made as it should be, the return to removal. Check installation of camshafts. Check liquid level in AT and add it if it is necessary.