Mazda 121 - Outline; Troubleshooting Guide; Specifications

OUTLINE.
TROUBLESHOOTING
GUIDE
B
OUTLINE
SPECIFICATIONS
Engine
Item
a3
Cylinder
anangement and number
Combusrion
chamber
OHC, belt-driven
16 va ves
Displacemenl cc
(c'r
in)
1323
(80.7)
Bore and stroke
mm
(in) 71.0x83.6(2.80x3.29)
9.4
Compression
pressure
kPa
(kg/cm'. psi)'rpm
1373
(14.4,
199)300
IN
Open BTDC
ABDC
EX
Open BBDC
404
Close ATDC
Vaiv€
clearance
mm
(in)
N
0.30
(0.012)
EX 0.30
(0.012)
ldle sp€ed rpm
[/TX
750
ri
ATX
1100
r"3
lgnition timing BTDC
16
1-3-4-2
TBOUBLESHOOTING
GUIDE
Posslble Cause
eemedy Page
Difiiculi startlng Mallunction ol enginerelaied componenls
Wom
piston, pislon
ring or
cylinder
Faled cylinder
head
gasket
B-49
8,54,56
B-17
Mallunclion ol tuol system
Mallunclion ol igrltion system
Refer ro Section G
Poor
idling uallunclion
of
engine-rslated components
Poor valvelo-valve seat conlact
Failed
cylinder
head
gasket
B-49
B-17
Maltunction ol tuel system
Mallunctlon ol
ign[ion
system
Reler to Section G
Oil working up
Worn
pjston
ring
groove
or sticking
piston
ng
Worn
pision
or cylinder
856
B 54,56
Oil working
down
Worn valve stem or
guide
8-61,72
B-50
Oll
leakage Reter
io Section D
B-3