Datsun 510 Workshop Manual page 18

I
I
llaiDtelllDce
IUD8 UP
Condition Probable
cause
Corrective action
Low
or no current
Ignition
system in
trouble
Burned distributor
point
Improper
point
gap
Defective ondenser
leak
at rotor
ap and
rotor
Defective
spark plug
Improper
ignition timmg
Defective ignition
oil
Disconnection of
high
tension cable
L005C connection or disconnection in
primary Tcuit
Fuel system trouble
la k of fue
Dirty
fuel strainer
Dirty
or
clogged
fuel
pipe
Fuel pump will
ot
work
properly
Carburetor choke will
01
work
properly
Improper adjustment
of float level
Improper idling
Dirty
or
do ed carburetor
Clogged
breather pipe
of fud tank
Damaged
anti di e sel i n g olenoid
Low compreuion Incorrect spark
plug tightening
or
defective
gasket
Improper grade engine
it low
viscosity
Incorrect valve
clearance
Compression
leak fromvaIve
seat
Sticky
valve
stem
Weak
defective alve
springs
Compression leak
at cylinder
head
gasket
Slicking
or defective piston ing
Worn
piston ing cylinder
Trouble
shooting procedure
Pour the engine iI from plug hole nd then
measure
cylinder
compression
Compression
increases
Compression
does
not change
Check for loose terminal
or
disconnection
primary circuit
Check for burned
points
Repair replace
Adjust
Replace
Clean
eplace
Clean
adjust plug
gap
or
replace
Adjust
Replace
Replace
Repair replace
Supp1r
Replace
Clean
Repair replace
Check tnd
adjust
Correct
Adjust
Disassemble nd clean
Repair
nd clean
Replace
Tighten to
normal
torque
or
replace
gasket
Replace
with proper
grade
oil
Adjust
Remove
cylinder
head and
lap
valves
Correct
replace
alve nd lIve
guide
Replace
valve
springs
Replace gasket
Replace
pIston
ngs
Overhaul
engine
Trouble ill
cylinder
or piston ring
Compression
leak from valve
cylinder
head
or
head gasket
18