Mazda 121 - Page 42

B
TROUBLESHOOTING
GUIDE
Remedy
Ps9e
Insulticient
compaession
Compresson
leakage
lrom valve seat
Weak or broken
valve spfing
Faiied cylinder
head
gasket
Cracked or d'slorred
cylinder
heao
Sticking damaged,
or wom
plslon
Ing
Cracked or wofi
pislon
B-51
B
-49
B-52
B-17
B-48
B-56
B-56
Mallunction ot luel
system
Mallunction ot ignition
system
Reler lo Secnon
G
Othera
Slipping
clutch
Dragg ng brakes
lklfunction of enginerelaled
components
Siicking or burned
valve
weak or broken
valve spnng
Carbon
accumulalon
ln combustion chamb€r
B-49
B-52
itallunclion ol
tuel system
lraltunction of
lgnllion system
Engins nois€
Crsnkshaft- or bearing-rolated
p.tls
Excessive rnain bearing
oil clearance
Main bearing seized
or heal damag€d
Excessive crankshait
end
Dlav
Excessive connecting
rod bearing oii
clearance
Connecting
rod bearing
seized or
heat_damaged
B-64
B-58
B-65
B-65
B-58
PBton-related
parls
Wom
piston
or
pislon
Pn
Damaged
p
ston rrng
855
856
856
856
valves or timing-related
Parls
Broken valve sping
Excessve
valve
gude
clearance
B-52
B
-49
Malfunctlon
of cooling system
Refor to Secton
E
llralluncllon of
tuel sFtem
others
lvlaLfunction ol water
pump
bearing
lmproper
drive
beLl
tenslon
Malfunction oi
aternalor beanng
Exhaust
gas
leakage
N,4afunction oi I ming
beli tensioner
Befer to seci
on E
Reler lo Section
G
B-13
B-4