Chrysler Conquest 1988 Service Manual page 161

IGNITION SYSTEM
- lanition Svstem
8-149
Timing
indicator
Notch on
crankshaft
pulley
Plug cleaner
OlU008E
Plug gap
Gap
ND
gauge
NGK
Id-
r-l-f
01ROll!
9. REMOVAL OF DISTRIBUTOR
Before removing the distributor, position the piston in No. 1
cylinder at the top dead center on compression stroke by
the following procedure.
(1) Remove the cap from the distributor.
(2) Turn the crankshaft until the distributor rotor lines up
with the No. 1 spark plug cable electrode on the
distributor cap.
(3) Align the notch on the crank shaft pulley with the timing
mark "T" on the timing indicator to set the engine so
that the piston in No. 1 cylinder is at the compression
top dead center.
INSPECTION AND CLEANING OF SPARK PLUGS
(1) Disconnect spark plug cable from plug.
(2) Using a plug wrench, remove all plugs from cylinder head.
Caution
Use care not to allow foreign matter to enter through
plug holes.
(3) Check the following items to see that the electrodesare not
damaged and are in soundly burnt state and insulators are
not damaged.
l
Damage of insulators
l
Wearing of electrodes
l
Carbon deposit
For cleaning, use a plug cleaner or wire brush. Also
clean cord-side insulator.
l
Damage of gasket
l
Burnt condition of insulator.
Dark deposit of carbon indicates too thick mixture or
insufficient intake air. Also, misfiring due to too large
plug gap is suspected.
White burn indicates too lean mixture or too fastlignition
timing. Also insufficient plug tightening is suspected.
(4) Clean with a, plug cleaner.
Use an air gun to remove dust deposited on plug threads.
(5) Check plug gap using a plug gap gauge and adjust iflt is not
as specified.
Standard value:
NGK, CHAMPION
1.0 - 1.1 mm (.039 - .043 in.)
NIPPON DENS0
W22EP-U IO, W22EPFbU 10
0.9 - 1.0 mm (.035 - .039 in.)
Other type
1.0 - 1.1 mm (.039 - .043 in.)