Valve seats

Fig 1: Seating Valve Using Valve Cutter

Use a valve cutter set with T-wrench, locating spindle part no. 83 93 928, valve seat cutters part no. 83 93 936 (60°) and part no. 78 61 040 (45°).

Fig 2: Identifying Valve Seating Angle, Regrinding Angle And Valve Seat Width (1 Of 2)

Fig 3: Identifying Valve Seating Angle, Regrinding Angle And Valve Seat Width (2 Of 2)

Valve seat angle: 

Inlet and exhaust valves: 45.25° +/- 0.25

Regrinding angle: 

Inlet and exhaust valves: 60 °

Valve seat width: 

Intake valve: 1.0-1.5 mm

Exhaust valve: 1.5-2.0 mm