Datsun C210 series Manual page 329

Brake System
TROUBLE
DIAGNOSES
AND
CORRECTIONS
Condition
Excessive
pedal
travel
Spongy pedal
Poor
braking
effect
Probable
cause
Low
brake fluid
level
or
empty
master
cylinder reservoir
Leakage
in master
cylinder
Deteriorated check valve
Air in system
Faulty
brake
adjustment
Excessive
lateral
play
on
disc caused
by
loose
or
worn
wheel bearings
or
steering
parts
Low fluid level in master
cylinder
Air
in system
Faulty
brake
adjustment
Reservoir filler
cap vent
hole
clogged
Swollen hose due to deterioration
or
use
of
poor
quality hose
Distorted brake shoes
or
excessively
worn
or
cracked brake drum
Soft or
swollen
caliper
seals
Use of
a
brake
fluid
with
too
low boiling
point
Fluid
leakage
in brake lines
Low
brake
fluid
level
or
empty
master
cylinder
reservoir
Air in brake
lines
Excessive shoe to drum clearance
Grease oil mud
or
water
on
linings
or
pads
Deterioration
of linings
or
pads
Local fit of
linings
or
pads
Linings
or
pads excessively
worn
Master
cylinder
or
wheel
cylinders
in
poor
condition
Frozen
or
seized
caliper
pistons
on
disc
brakes
Binding mechanical
linkage
at brake
pedal
and
toes
BR 20
Corrective action
Fill and bleed
as necessary
Test for
source
of
leakage by examining
all lines
connee
tions
and wheel cylinder
Overhaul
master
cylinder
Replace check valve and bleed system
Bleed system
Adjust
hoe
to drum clearance Inspect
auto adjus ter operation
Replace
or
adjust faulty parts
Top
with fluid and
inspect
for
leakage
Correct
as
necessary
Adjust
shoe
to
drum clearance Inspect
auto adjuster operation
Clean
and bleed
system
Replace
hose and bleed system
Replace faulty
part
Drain
hydraulic
system
flush with alcohol
and replace all seals
Replace
with specified
brake fluid and bleed
system
Check
master
cylinder
pIpIng
and wheel
cylinder
for leaks and
repair
Fill and bleed
as necessary
Bleed
system
Adjust
Clean brake mechanism and check for
cause
of
problem Replace linings
or
pads
Replace
Shave
or
replace
Replace
Repair
or
replace
Disassemble caliper and free
up
as
required
Free
up
as
required