SAFARI

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35
4 DLT ENGINE
Maximum run mm 0.030 0.030
out of valve
seat with respect
to valve stem
Distance of mm 0.7/0.95 0.7/0.95
valve head from
cylinder head mating
surface with
crank case
Valve stem mm 0.05 to 0.060 to
clearance 0.087 0.097
Permissible ovality 0.01 0.01
of valve seat
VALVE GUIDES
Stage Valve guide Valve guide
bore in out side
cylinder head diameter
mm mm
Standard 13.980/13.998 14.028/14.046
Standard 1 14.008/14.080 14.278/14.296
Valve guide inside diameter 7.980/7.995 mm
Valve guide installation
height (from spring washer seat) 16.25/16.30 mm
PISTON GASKET IDENTI-
PROJECTION THICKNESS FICATION
0.45 to 0.55 mm 1.500 mm 1Notch
0.56 to 0.65 mm 1.600 mm 2 Notches
0.66 to 0.75 mm 1.700 mm 3 Notches
MAXIMUM DIFFERENCE BETWEEN PISTON
PROJECTIONS OF ANY TWO PISTONS IN CRANK
CASE SHOULD NOT EXCEED 0.120 mm
CYLINDER HEAD
Permissible unevenness Length wise 0.030 mm
of cylinder head mating Cross wise 0.015 mm
surface
VALVE DIMENSION
INLET EXHAUST
Valve head dia’A’ mm 38.02/38.5 33.00/33.20
Valve seat angle 450-30' 450-30'
Valve stem dia’E mm 7.940/7.956 7.920/7.935
Maximum run mm 0.200 0.200
out of valve face
with respect to
valve stem
Valve seat dia’C’ mm 36.9 31.000
Valve seat mm 2.25/2.45 2.1/2.3
distance
from valve
face ‘B’
Valve seat end mm 3.3/3.5 3.3/3.5
distance from
valve face
Fig. 62 Valve Dimension
Fig. 63 Valve seat Dimension
ø
ø
VALVE SEAT