190E 2.3 (201.024) L4-2.3L (102.961) (1984)
Valve Seat: Specifications
Valve Seat Grinding Dimensions
INTAKE VALVE SEATS
Seat width
1.80 - 2.50mm (0.071 - 0.098in)
Seat angle
45° -15'
Top correction angle
15°
Bottom correction angle
60°
Radial runout
0.05mm (0.002in)
EXHAUST VALVE SEATS
Seat width
1.50 - 2.50mm (0.059 - 0.098in)
Seat angle
45° -15'
Top correction angle
15°
Bottom correction angle
60°
Radial runout
0.05mm (0.002in)
VALVE HEAD TO CYLINDER HEAD MATING SURFACE CLEARANCE
Minimum Distance A, With New Valve Seats And New Valves:
Intake Valve
1.2 mm (0.047 in)
Exaust Valve
0.5 mm (0.020 in)
Maximum Distance A, With Reworked Valve Seats and Reground Valves:
Intake Valve
2.1 mm (0.083 in)
Exaust Valve
1.4 mm (0.055 in)