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Compression pressure (warm engine) when turned over with
staroter motor, 250-300 r.p.m.
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Compr-essio.n ratio
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Number of
cy
linde1
rs
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Bore ....
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......... .
Stroke
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Displacement ..
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Weig
ht,
incll!ding
electrical
eq uipment a nd gearbox
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.
We ight exclud
in
g
g·
e
arbox,
starter motor, o
il
a nd water
CYLINDER BLOCK
Materi'a
l
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Bo re,
standard
.
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ove rsize .030"
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PISTONS
Mateni'a
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We
ight,
standard ....
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P,
e rm issible we ight
devi
aflion
be1
t
ween
piston
s in same eng ine
He
ight, tota,1 ...
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He ig
ht
from
pi sto
n pin ce ntre to
pisto
n crown .
.
.
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....
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Piston
cleara nce .
.......
..
........
....
....
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.
PISTON RINGS
Piston ring gap, me
as
ured in ,ring openin
g ..
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.
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.
.... .
Oversi
ze
on piston rings .
....
.
.
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.
.
.
..
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.
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.
..........
.
COMPRESSION
RINGS
Marked
"TOP".
Upper ring chrome.d.
Number on each piston
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.
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.........
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Height
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Compression ring clearance in groove
.
.
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....
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..
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.
. .
Oll SCRAPER RINGS
Number on each piston .
.
...
.......
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Helig,ht
.
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Scraper ring clearance in groove
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GUDGEON PINS
Floating fit. Circlips at both ends in pistan.
Fit:
In conneoting rod
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In piston
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Diameter, standard
.
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overs·izes
.05"
CYLINDER HEAD
Height, rrieasured from cylinder head contact face to face for
bolt heads
.
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Distance from t·op side of head to over-flow pipe upper end
(pipe pl'aced ulnder
thermost
at)
...
.
...............
.
..
..
..
.
.. .
Cylinder h.e-ad gasket, thickness standard (unioaded) ..
..
..... .
CRANKSHAFT
Crankshaft,
end float
......
.
.
.
.
.
.....
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.
.
.
.
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.
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Main bearings, radia'l clearance
.
..
.
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.
.
...
..
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Big-end bearings, radial clearance
.
.
.
.
..
.
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.
...
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.....
.
11-13 kg/cm
2
(156-185 Ib/sq.in)
9.3: 1
6
88.90 mm (3.50")
80 mm (3.15"
)
2.98 litres
241 kg (530 Ih.
)
192 kg (422 Ib.
)
Specia
l
a
ll
o
y
cast iron
88.90
mm (3.499"
)
89.66 mm
(3.523")
Lig ht
o
ll
oy
507±5 gmmmes (17.75±.18 oz.
)
10
g ra
mm
es (.35
oz.)
71 mm
(2.79"
)
46 mm (1.81"
)
.02-.04 mm (.0008-.0016"
)
.40-.55
mm (.016-.022")
.030"
2
1.98 mm (.078")
.045-.072 mm (.0017-.0028")
1
4.74 mm (.186")
.045-.072 mm
(.0017-
.0028")
Close running fit
Push fit
22.00 mm (.866"
)
22.05 mm (.868")
86.7 mm (3.41")
35 mm (1.38")
.8 mm (.031")
(Ioaded .7 mm
=
.028")
.047-.138
mm (.0019-.0054")
.028-.079 mm (.0011 -.0031 ")
.029-
.071 mm
(.0012-
.0028")
0
:
3
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