Cylinder Arrangement; Specifications - Mazda MX-5 1990 Workshop Manual

OUTLINE
G
OUTLINE
SPECIFICATIONS
Item
Engine
B6DOHC
Voltage
V
12, Negative ground
Battery
Type and capacity
S46A24L(S) (32 Ah)
(5-hour rate) Maintenance-free
Dark cu rrent
*
1
mA
20.0
Type
A.C.
Output
V,A 12, 60
Regulator type Transistorized (built-in IC regulator)
Alternator
Regulated voltage
14.1-14.7
Brush length
Standard
21.5 (0.85)
mm (in)
Minimum 8 (0.31)
Drive belt tension
New 8-9 (0.31-0.35)
mm (in)
Used 9-10 (0.35-0.39)
Type Conventional
Starter
Output V-kW 12-0.95
Brush length
Standard 17.0 (0.67)
mm (in)
Minimum 11.5 (0.45)
Type Electronic spark advance (ESA)
Ignition system
Spark advance control Engine control unit controls spark advance
Ignition timing BTDC
Type
Ignition coil Primary coil winding kO
Secondary coil winding kO
Type
Spark plug
Plug gap mm (in)
Firing order
d
Dark current is the constant flow of current while the ignition switch is OFF
(i.e. engine control unit, audio, etc.)
*2
With System Selector (49 B019 9AO) test switch at SELF TEST.
Cylinder Arrangement
REAR
100 =' = 10
*2
Molded
0.78-0.94
11.2-15.2
NGK : BKR5E-11
BKR6E-11
BKR7E-11
Nippon Denso : K16PR-U11
K20PR-U11
K22PR-U11
1.0-1.1 (0.039-0.043)
1-3-4-2
05UOGX-003
05UOGX-076
G-3