G18 Engine Specifications - Datsun 510 series Workshop Manual

4 Cylinder head gasket
Cylinder
block side
6 Oil pump
5 Intake manifold
Block installing surface
near
to
oil exit
Control valve
Angle tube
connector
7 Rocker
cover
Tapping
screw
of bume
plate installing
SPECIFICATION
a
Valve mechanism
Valve clearance cold In 0 25
mm
0 0098 in
Ex 0 25
mm
0 0098 in
Hot Reference value
0 0098 in
In 0 28
mm
0 011 in
Ex 0 28
mm
0 011 in
Valve head diameter
In 42mm 1654 in
Ex 35mm
1
378 in
Valve
stem
diameter
In Ex 8mm
0 3150 in
Valve length In 116 4 mm
4 5 8 in
Ex 117 2
mm
4
61 in
Valve lift
9 0mm
0 354 in
Valve spring free length Outer 42 5
mm
1673 in
Inner
414mm
1 630 in
Valve spring loaded length
Outer 29 0
mm
I 142 in
Inner 26 0
mm
1 024 in
Valve spring assembling height Outer
37 0mm
I 457 in
Inner 34 0 mm
1 3 39 in
Valve
spring
effective wind number
Outer 4 5mm
0 1772 in
Inner 6 25
mm
0 2461 in
Valve spring wire diameter
Outer 4 2mm
0 1 654 in
Inner 29mm
0 1142 in
Valve spring coil diameter Outer
27 5
mm
1 083 in
Inner 19 9mm
0 733 in
Valve
guide length
In 48mm
1 890 in
Ex 60mm
2 362 in
Valve guide height from
cylinder
head In Ex 16 7mm
0 657 in
Valve guide inner diameter In Ex 7mm
0 2756 in
Valve guide
outer
diameter
In Ex 14 2mm
0 559 in
Valve guide
to stem
clearance In 0 025
0 055
mm
0 0010 0 0022 in
Ex 0 04
0 077
mm
0 0016 0 0030 in
Valve
guide
interference fit
In Ex 0 040 0 069
mm
0 0016 0 0027 in
Max tolerance of above clearance
In Ex 0 1
mm
0 0049 in
Valve
seat
width In Ex
2 05 2 3 3mm
0 0807 0 0917 in
Valve
seat
angle
In Ex 900
b Camshaft and
timing
chain
Camshaft end play 0 07
0 148
mm
0 0028 0 0058 in
Cam
height
36 53
mm
1438 in
Camshaft journal diameter
37 45 37 475
mm
1 474 1 475 in
S14