26
SPECIFICATIONS
Rocken
Bushes: Inside diameter (reamed
in
position)
Bore
of
arm
Rocker
ratio
Pistoas
Material
and
type
Clearance
at
bottom
of
skirt
..
Width
of
ring groove: Compression:
No.1
Oversizes
Piston
rings
Number
Oil control
Width:
Compression
..
Oil control
Fitted
gap:
No.
1 compression
Nos. 2
and
3
Nos.
2
and
3 compression
and
oil control
Clearance in groove:
No.1
compression
..
Oversizes
Gnclgeon pins
Type
Fit:
In
piston
Nos. 2
and
3 compression
Oil
control
In
connecting rod
..
Diameter
Length
..
Crankshaft
-continued
..
·6255
to
·626 in. (15'89
to
15·90 mm.).
· . ·7485
to
·7495 in. (19·01
to
19·03 mm.).
..
1,4:1.
..
Aluminium, solid skirt.
..
·0036
to
0()()43
in. (·091
to
·109 mm.).
..
00816
to
·0826 in. (2'07
to
2·10 mm.).
· . ·0806
to
·0816 in. (2'05
to
2·07 mm.).
..
·1578
to
·1588 in. (4·01
to
4·03 mm.).
..
+·010
in.·,
+·020
in.,
+·030
in.,
+·040
in.
(+·25
mm.,
+'51
mm.,
+·76mm.,
+1·02mm.).
..
3 compression (I chrome-plated, 2 tapered), 2 oil
control.
..
·0771
to
·0781 in. (1'96
to
1·98 mm.).
..
·1552
to
·1562 in. (3'94
to
3·97 mm.).
..
·012
to
·020 in. (·30
to
·51
mm.).
..
·008
to
·013 in. (·20
to
·33 mm.).
..
·0035
to
·0055 in. ('09
to
·14 mm.).
..
·0025
to
·0045 in. (·06
to
·11
mm.).
· . ·002
to
0()()4
in. (·05
to
'10 mm.).
..
+'010
in., + ·020 in., + ·030 in., + ·040 in.
(+·25
mm.,
+·51
mm.,
+·76
mm., +1002 mm.).
..
Floating, located in piston
by
circlips.
..
·00035 in. (·009 mm.) clearance
to
·00005 in. ('001
mm.) interference.
· . ·0002
to
·0009 in. ('005
to
·023 mm.).
· . '9998
to
1·000 in. (25'39
to
25·4 mm.).
· . 2·360
to
2·375 in. (59·94
to
60·32 mm.).
Journal
diameter
..
2·0005
to
2·001 in. (50·813 to 50·825 mm.).
Crankpin
diameter
..
2·0005
to
2·001 in. (50·813
to
50·825 nun.).
Undersizes (journals
and
crankpins)
..
-·010
in.,
-·020
in.
(-·25
mm.,
-'51
mm.).
End-fioat (taken
on
thrust
washer
at
centre main
bearing)..
·002
to
·003 in. (·05
to
·08 mm.).
Main
bearings
Number
and
type
Material
Length
..
Inner
diameter
..
Running
clearance
Undersizes for reground
journals
Connecting rods
Length (centres)
Side-clearance
..
Small-end bush (inner diameter, reamed
in
position)
Big-end bearings
Material
Length
..
Diameter:
Inner
Running
clearance
Undersizes
for
reground crankpins
..
..
3, shell type. .
..
Steel-backed copper-lead.
..
1·213
to
1·223 in. (30·81
to
31·06 mm.).
..
2·0025
to
2·0032 in. (50·863
to
50·881 mm.).
..
·0010
to
·0027 in. (·025 to '068 mm.).
..
·010 in., ·020 in. (·25 mm.,
·51
mm.).
" 6·498
to
6·502 in. (165'05 to 165·15 mm.).
..
·008
to
·012 in. (·20 to ·30 mm.).
· . 1·0002
to
1·0007 in. (25'40
to
25·42 mm.).
Steel-backed copper-lead.
..
'963
to
·973 in. (24'46
to
24·71 mm.).
..
2·0025
to
2·0032 in. (50'863
to
50·881 mm.).
· . ·001
to
'0027 in. (·025 to ·068 mm.).
o.
·010 in., ·020 in. (·25 mm.,
·51
mm.).
To Next Page