Table 9 TECHNICAL ABBREVIATIONS (continued)
AIS
Air induction system
ATDC
After top dead center
API
American Petroleum Institute
Aus
Australia model
BBDC
Before bottom dead center
BDC
Bottom dead center
BTDC
Before top dead center
C
Celsius (centigrade)
Ca
California model
cc
Cubic centimeters
CDI
Capacitor discharge ignition
Cdn
Canada model
cid
Cubic inch displacement
cu. in.
Cubic inches
D
Germany
Eur
Europe model
F
Fahrenheit
Fin
Finland model
ft.
Feet
ft.-lb.
Foot-pounds
gal.
Gallons
H/A
High altitude
hp
Horsepower
in.
Inches
in.-lb.
Inch-pounds
I.D.
Inside diameter
kg
Kilograms
kgm
Kilogram meters
km
Kilometer
kPa
Kilopascals
LL
iter
m
Meter
MAG
Magneto
ml
Milliliter
mm
Millimeter
N•m
Newton-meters
O.D.
Outside diameter
oz.
Ounces
psi
Pounds per square inch
PTO
Power take off
pt.
Pint
qt.
Quart
rpm
Revolutions per minute
SCCR
Starting circuit cutoff relay
TCI
Transistor controlled ignition
TPS
Throttle position sensor
USA
49-state model
Table 10 METRIC TAP AND DRILL SIZE
Metric
Drill
Decimal
size
equivalent
fraction
Nearest fraction
3
×
0.50
No. 39
0.0995
3/32
3
×
0.60
3/32
0.0937
3/32
4
×
0.70
No. 30
0.1285
1/8
4
×
0.75
1/8
0.125
1/8
5
×
0.80
No. 19
0.166
11/64
32
CHAPTER ONE
(continued)