Removing and installing chain tensioner - RA05001043100X(05-3100)
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
Preceding work:
Viscous fan clutch removed (20-3120) .
Poly V-belt removed (13-3200) .
Operation no. of operation texts and work units or standard texts and flat rates:
05-7800, 7801
CHAIN TENSIONER OPERATION TEXTS
| Models 124, 129, 140: | unbolt air pump (22), swivel to the side with lines/wiring connected, bolt on (14-7251). |
| Models 124, 129, 140: | cover over generator with cleaning cloth. |
| Model 202: | disconnect ground cable at battery, connect. |
| Model 202: | remove air cleaner top part, install (09-1051). |
| Model 202: | unbolt generator, place to side with wiring connected, bolt on (15-5032). |
| Screw plug (1) | slacken approx. one turn. |
| Chain tensioner complete | unbolt. If the chain tensioner housing (14) has been slackened, it must be taken off as the thrust pin (10) is locked with the detent spring (9) in the pressure direction. |
| Screw plug (1) with seal (5) | unscrew. |
| Filler pin (7) and compression spring (8) | remove. |
| Thrust pin (10) with detent spring (9) in chain tensioner housing (14) | press out in pressure direction. |
COMPRESSION SPRING
| Air cleaner | remove, install. |
| Generator | unscrew top bolt, screw on, slacken bottom bolt, swivel generator down. |
| Screw plug (1) | slacken about one turn. |
| Chain tensioner complete | unscrew. If the chain tensioner housing (14) was slackened, it must be removed as the thrust pin (10) is locked in the pressure direction by the detent spring (9). |
| Screw plug (1) with seal (5) | remove. |
| Filler pin (7) and compression spring (8) | remove. |
| Thrust pin (10) with detent spring (9) | press out of chain tensioner housing (14) in pressure direction. |
CHAIN TENSIONER HOUSING
| Chain tensioner housing (14) with seal (15) | install, tighten (80 Nm). |
| Thrust pin (10) with detent spring (9), Compression spring (8) and filler pin (7) | insert. |
| Screwplug (1) with new seal (5) | screw in, tighten (40 Nm).
NOTE:
Stick seal (5) onto screwplug (1) with grease.
|
| Engine | run, check for leaks. |
TIGHTENING TORQUES IN NM
| Screw plug of chain tensioner | 40 |
| Chain tensioner housing in timing case cover | 80 |
Special tool