Removing and Installing Hydro-Tappets
Removing and installing hydro-tappetsPreliminary work
1. Remove camshafts.
Information
Component overview
Component Overview Of Valve-Stem Guide:
Removing hydro-tappets
Note: Observe the most important working regulations and warning notes
--> 'The most important working regulations and warning notes'.
Installation Position Of Roller-Type Cam Follower -1- And Support Element -2-:
Note:
^ The roller-type cam followers are joined to the hydro-tappets (support elements) with a safety clip.
^ The safety clip must be handled carefully!
^ If the hydro-tappets are to be reused, they must be marked according to installation position with a water-resistant felt-tip pen and stored in such a way that they cannot be mixed up!
^ If the hydro-tappets are to be reused, they must be reinstalled in the same position!
^ Roller-type cam followers must be set aside in such a way that they cannot be mixed up.
1. Take the roller-type cam followers with the support elements out of the cylinder head. The roller-type cam followers must be completely removed carefully --> Installation position of roller-type cam follower -1- and support element -2- without tilting together with the safety clip and support element (hydro-tappet).
Component Arrangement: Hydro-Tapper - Roller-Type Cam Follower:
2. Check component arrangement. Check that the components are complete and intact. Replace any faulty or damaged components. The safety clip is hooked into the front of the roller-type cam follower -1- and support lever -2-. Observe the position of the valve pressure face with respect to the roller-type cam follower during removal -3-.
3. Lay roller-type cam followers, support elements and safety clips aside in such a way that they cannot be mixed up. Mark the installation position according to cylinder and valve.
Installing hydro-tappets
Note: Observe the most important working regulations and warning notes
--> 'The most important working regulations and warning notes'.
Roller-Type Cam Follower And Support Element Connection:
1. Assemble support element, roller-type cam followers and safety clips or check that they are assembled correctly. Make sure the support elements and roller-type cam followers are joined correctly by the safety clips -1 and 2-.
Installation Position Of Roller-Type Cam Follower -1- And Support Element -2-:
2. Oil the components. Install support element/roller-type cam follower. Make sure that the safety clip does not slip out of place during installation. The pressure face of the roller-type cam follower -3- must rest on the valve pressure face. This can slip out of place when the camshaft is installed later.
Subsequent work
Note: When installing the camshafts, make sure the roller-type cam followers do not slip off the valve pressure face.
1. Install camshafts.