11 12 729 Checking cylinder head on watertightness (B48AO0)
WARNING: This page is about a different variant/trim than selected.
Necessary preliminary tasks:
- Remove CYLINDER HEAD .
- Remove ALL HYDRAULIC VALVE CLEARANCE COMPENSATING ELEMENTS
- Remove ECCENTRIC SHAFT
Unscrew nuts (1).
Tightening torque 11 62 1AZ .
Remove clamping strip (2).
Position and fasten cylinder head (1) on special tool.
NOTE:
Assemble special tool in a way that all water ducts on the cylinder head are sealed.
Disassemble connecting branch (1).
Attach and fasten special tool to cylinder head.
NOTE:
Compressed air at special tool maximum 3 bar
.
Heat cylinder head to 60°.
Visual inspection in a water bath.
Heat cylinder head to 60°.
Visual inspection in a water bath.
Required follow-up work:
- Remove all special tools
- Install ALL HYDRAULIC VALVE CLEARANCE COMPENSATING ELEMENTS
- Install ECCENTRIC SHAFT
- Install the CYLINDER HEAD
- Assemble engine