p
Oil control type
..
Width
.l:
Thickness
Fitted gap
Clearance in groove
..
GUDGEON PIN
Type
Fit
in piston
Diameter (outer)
..
GENERAL
DATA-continued
..
Slotted scraper.
..
·124
to
·125 in. (3'15 to 3·175 mm.).
·095
to
·101 in. (2,41
to
2·56 mm.).
· . ·007
to
·012 in. ('178
to
·305 mm.).
· . ·0015
to
·0035 in. (,038
to
·089 mm.).
..
Clamped in little-end.
..
Hand
push-fit.
·624 in. (15'86 mm.).
:~-
VALVES AND VALVE GEAR
Valves
Seat angle: Inlet
Exhaust
..
Head diameter: Inlet
..
Exhaust
Stem diameter: Inlet
..
Exhaust
Valve lift
Valve stem
to
guide clearance: Inlet
Exhaust
Valve rocker clearance: Running
Timing
Timing markings
Chain pitch
and
number
of
pitches
Inlet valve: Opens
Closes
Exhaust valve: Opens
..
Closes
Valve rocker bush bore (reamed)
"VA~YE
GUIDES
Length: Inlet and exhaust
Diameter: Outside: Inlet
and
exhaust
..
Inside: Inlet and exhaust
..
VALVE
SPRINGS
Free length: Inlet
and
exhaust
..
Number
of
working coils
Pressure: Inlet and exhaust: Valve open
Valve closed
TAPPETS
Type
Diameter
..
Length
..
45°.
..
45°.
· . 1·093
to
1'098 in. (27,76 to 27·89 mm.).
..
1·000
to
1·005 in. (25,40
to
25·53 mm.).
..
·2793
to
·2798 in. (7,096
to
7·109 mm.).
· . ·2788
to
·2793 in. (7,081
to
7·096 mm.).
..
·285 in. (7,24 mm.).
..
·0015
to
·0025 in. (,038 to ·064 mm.).
·002
to
·003 in. (,051
to
·076 mm.).
· . ·012 in. (,305 mm.) (cold).
..
·019 in. ('48 mm.).
..
Dimples
on
timing wheels, marks
on
flywheel.
i in. (9'525 mm.). 52.
5°
B.T.D.C.
45° A.B.D.C.
..
40° B.B.D.C.
· . 10° A.T.D.C.
..
·5630 to ·5635 in. (14'30
tu
14·312 mm.).
..
1·687 in. (42'86 mm.).
· . ·469 in. (11,91 mm.).
..
·2813
to
,2818 in. (7'145
to
7·257 mm.).
· . 1·625 in. (41'27 mm.).
..
41·
..
70 lb. (31'8 kg.).
37·5 lb. (17'027 kg.).
..
Barrel type.
..
'812 in. (20,64 mm.).
..
1,5 in. (38,10 mm.).
---
-
-._.'.~
CAMSHAFT
Journal diameters:
Front
Centre
Rear
~Data2
1'---;"'''
· . 1·6655
to
1·666 in. (42,304
to
42·316 mm.). •
· . 1·62275
to
1·62325 in. (41'218
to
41·231 mm.). .
· . 1·3725
to
1·3735 in. (3.4·862
to
34·887 mm.).
'.
MINI. Issue
1.
4908
\
\.
mk1-performance-conversions.co.uk
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