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ENGINE

.

55

B. REPAIR DATA

VALVE SEAT DIMENSIONS:

VALVE DIMENSIONS (mm)

INLET

EXHAUST

Valve head dia 'A'

29.8

+ 0.1

25.9

+ 0.2

Valve seat angle

45

0

+ 15

45

0

+ 15’

Valve stem dia 'B'

5.973

+ 0.007

5.973

+ 0.007

Maximum run out of valve face with respect to valve stem

0.1

0.1

Valve seat dia. 'C'

27.7

24.5

Valve seat distance from valve face 'D'

2.54

+ 0.08

2.0

+ 0.08

Maximum run out of valve seat with respect to valve stem

0.03

0.03

Distance of valve head from cylinder head mating surface with crank-

case

0.23/-0.18

0.23/-0.18