Section 2 - Cylinder Head - Group 02 Cylinder Head - Pressure Test for Reuse (2-08) M11 Page 2-29 Remove the injectors and apply a bluing compound to the outside diameter of the injector at the injector seat area. Install the injectors into the cylinder head without the o-rings. Torque Value: 75 [55 ft-lb] Remove the injectors from the cylinder head. The bluing pattern of the injector seating area (1) must be approximately 13mm [0.50 inch] from the cylinder head surface. The injector bore seating width (2) must be a minimum of 1.52mm [0.060 inch]. Inspect the cylinder head for leaks after the new injector sleeves have been installed. Refer to Cylinder Head - Pressure Test for Reuse (2-08).
Cylinder Head - Pressure Test for Reuse (2-08) Caution: Do not pressure test the cylinder head with the valves and valve springs installed. Water entering the cylinder head cannot be dryed thoroughly and will dam- age the valve guides and valve stems. Refer to Cylinder head - Rebuild - Disassembly (2-02) Use cylinder head water test fixture, Part No. 3376082. Install the gasket (1), Part No. 3376084, and the test plate (2), Part No. 3376658. Install the cylinder head capscrews and nuts. Torque Value: 45 [35 ft-lb]