Mercedes S-Class W-140

1991-1999 of release

Repair and car operation

Removal and installation of camshafts

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

Arrangement of camshafts


1, 1a, 2, 2a — the Top sliding levers 5, 6, 7, 8 — Camshafts 10, 12 — Covers 13 — Natyazhitel of a chain 14 — the Cover of the bearing of a camshaft

The sizes of camshafts are specified in Specifications.

Covers of camshafts have sequential numbering, since a forward cover of the right final camshaft. Numbers are beaten out on heads of the block of cylinders. Covers of bearings should be established in the same situation.

Removal

PERFORMANCE ORDER

1. Establish the piston of the first cylinder in situation 45 ° before VMT. 2. Remove the top forward cover. 3. Mark the mutual provision of a chain of a drive of GRM concerning asterisks of camshafts. 4. Remove a natyazhitel of a chain of a drive of GRM. 5. Remove the top sliding levers.
6. Remove a chain of a drive of GRM from asterisks of camshafts. Turn camshafts by means of a key (1) so that cams did not press hydrojacks (see сопр. illustration). Turn right final and right inlet asterisks approximately on 6 teeths in the direction of rotation of the engine. The left inlet asterisk turn approximately on 10 teeths in the direction opposite to the direction of rotation of the engine. The left final asterisk turn approximately on 14 teeths in the direction of rotation of the engine.
7. Weaken covers of bearings of camshafts consistently so that to prevent any unilateral tension of a camshaft. 8. Remove covers of bearings and camshafts together with asterisks and regulators.

Installation

Deployment in the control provision of the right camshaft


1 — Fixing cores 3 — the Key

PERFORMANCE ORDER

1. Grease hydrojacks and necks of bearings of camshafts. 2. Establish the left inlet and final camshafts with a chain of a drive of GRM on asterisks, but without a tension. 3. Oil covers of bearings, establish and tighten bolts of their fastening to 10 Nanometers.
4. Turn a camshaft by means of a key (3) and check ease of rotation.
5. Turn the left final camshaft by means of a key (3) in control situation. Establish a chain of a drive of GRM in earlier noted situation, previously having blocked a camshaft a core (1). 6. Turn the left inlet camshaft by means of a key (3) in control situation. Establish a chain of a drive of GRM in the early noted situation, previously having blocked a camshaft a core (1). The camshaft is in the situation "backlogs". 7. Establish the right inlet and final camshafts with a chain of a drive of GRM on asterisks, but without a tension. 8. Oil covers of bearings, establish and tighten bolts of their fastening to 12 Nanometers.
9. Turn camshafts and check ease of rotation.
10. Establish the right inlet camshaft in control situation. Establish a chain of a drive of GRM in earlier noted situation, previously having blocked a camshaft a core (1). The camshaft is in the situation "backlogs". 11. Establish the right final camshaft in control situation. Establish a chain of a drive of GRM in earlier noted situation, previously having blocked a camshaft a core (1).
12. Further installation is made as it should be, the return to removal. 13. Check the control provision of camshafts.