Datsun 1600 - BRAKES FAULT DIAGNOSIS; BRAKE PEDAL AND DRAG ISSUES; BRAKE PERFORMANCE ISSUES

j il
v
I7
Brakes
Brake
pedal
hard
12
111l KI t UJI T In t USIS
a
b
c
d
e
PossIble cause
Incorrect shoe
hnmgs
fitted
Frozen
pedal pivot i
Restncted
brake
lIne
from master
cylinder
Frozen
wheel
cyhnder
or
calliper Plston
s
Vacuum
servo
system InoperatIve
2 Brake
drag
due to
pressure
budd
up
POSSIble cause
a
Clogged
master
cylinder ports
b Frozen
wheel
cylinder
or
calliper plSton
s
c Frozen
handbrake
lInkage
d Broken
or
stretched brake
shoe
return
sprIngs
e Frozen
handbrake
cables
I Blocked
vent
m flUid
reservou
cap
3 Lower
spongy
brake
pedal
POSSIble cause
a
Incorrectly adjusted
brake shoes
b
Lack of
sufficient flUid In
system
r
c Air In
brake
hxdrauhc system
I
f
1
4
Brake l cks on
appli
t on
li
POSSIble cause
J
a
Gummy hnIngs
or diSC
pads
due
to OIl
or flUid
contallUnatJon
b
Bent or
eccentrIC
brake
drum
s
c
Incorrectl1nIngs
fi tted
d
Broken
or
stretched brake
shoe return
sprmg
s
5
Brake
pedal
puloates
POSSible cause
a Bent or
eccentrIC brake drum
or diSC
b Loose or
worn
front
hub
beanngs
c Bent rear axle shaft
6 Brake fade at
ugh speed
POSSIble cause
a Incorrect
shoe
adjustment
b
EccentrIC or bent brake
drum
c
LInmg
s saturated
With
hydraulic
flUid
d Incorrect
hRIngs
fitted
7
Brakes overheat
Pvsslble
calise
a Incorrect
shoe
adjustment
b Broken shoe return
spnng
s
c
Faulty
handbrake cables and or
adJustment
d Frozen wheel
cylInder pistons
e
Obstructed
or
damaged hydrauhc
hose or
lme
I
Obstructed master
cyhnder compensatmg port
g
Blocked vent m master
cylmder
reserVOir
cap
h
Broken rear
spnng
mam leaf or centre bolt
166
Remedy
Check and
replace IImngs
With
recommended
type
RectIfy
or
renew
piVOt pm
and bush If fitted
Check brake
lIne
and remove restnctIon
or
renew lIne
Check free
up
or
renew
pistons
Check
servo
system
and
rectIfy
Remedy
Check and clean master
cylmder
and flwd reservou
Check free
up
or
renew
piStOns
Free
up
or
renew
lInkage
Renew defective
spnngs
Free
up
or renew cables
Check vent
and remove obstructIOn
Remedy
Check and
adJust
brake shoes
Check for leaks
replemsh
flwd to
speCified
level and
bleed
brake
system
Bleed
hydraulic
system
Remedy
Clean and
renew
hmngs
or diSC
pads
Check
and
renew
faulty
drum s
Check and
renew
IIrungs
m
paIrS
With recommended
type
Check and
renew
faulty
sprmg
s
1
Remedy
Check and
renew
drums
or
diSC
as
requued
AdJust
or
renew front hub
beanngs
Check and
renew
faulty compone
nts
Remedy
Check and
adJust
shoe to drum clearance
Check and renew
faulty component
Renew
contallUnated
lirung
s
Check and
U1Stal
recommended
IIrungs
m
sets
Remedy
Check and
adJust
shoe to
drum
clearance
Renew
faulty
sPrIng
s
Check cables renew
or
adJust
Free
up
or
renew
faulty components
Remove obstructIOn
or
renew
hydraulic
hose
or
lIne
Clear
compensatIng port
Check and remove
obstructIon m
vent
Check and renew
faulty
components
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