Rotor Roplacement; Electronic Module Replacement; Distributor Components - Jeep J-10 Series 1982 Technical & Service Manual

When disconnecting this connector do not use a screw
driver or tool to release locking tab because it may
break.
(2) No periodic lubrication is required. Engine oil
lubricates lower bushing and oil-filled reservoir provides
lubrication for upper bushing.
(3) Tachometer (TACH) terminal is located opposite
to ignition switch (BAT) terminal on ignition coil.
CAUTION: The tachometer terminal must NEVER be
connected to ground because damage to the electronic
module and/or ignition coil can result.
NOTE: Some tachometers currently in use may NOT
be compatible with the High Energy Ignition System.
Consult the manufacturer of the tachometer ifunsure.
(4) Dwell is controlled by electronic module and
cannot be manually adjusted.
(5) Centrifugal advance and vacuum advance mech
anisms are similar to those used with conventional igni
tion systems.
(6) Insulating jacket material used to construct
spark plug wires is very soft. It will withstand more
heat and higher voltage, but is more susceptible to chaf
ing and cutting. Spark plug wires must be routed cor
rectly to prevent chafing or cutting. Refer to Spark Plug
Wires. WTien removing spark plug wire from spark plug,
twist boot on spark plug and pull on boot to remove
wire, or use special tool designed to remove spark plug
boots.
Distributor Replacement
(1) Disconnect distributor wire connector from igni
tion coil. Disconnect "pigtail" wires going to ignition
switch and tachometer (if equipped).
(2) Remove distributor cap by turning two latches
counterclockwise (requires "stubby" screwdriver). Move
cap out of way.
(3) Remove vacuum hose from vacuum advance
mechanism.
(4) Remove distributor holddown clamp bolt and
clamp (fig. 1G-4).
(5) Note position of rotor, then pull distributor up
until rotor stops turning counterclockwise and again
note position of rotor.
NOTE: To ensure correct installation position of the
distributor, the distributor must be INSTALLED with
the rotor correctly positioned as noted above.
(6) If crankshaft was accidentally rotated after dis
tributor was removed, use following procedure for in
stalling distributor:
(a) Remove No. 1 spark plug.
(b) Place finger over No. 1 spark plug hole and
crank engine slowly until compression is felt.
IGNITION SYSTEMS 1G-7
(c) Align timing mark on vibration damper at
0° on graduated degree scale on timing gear cover.
(d) Turn rotor to point between No. 1 and No. 3
spark plug towers on distributor cap.
(e) Install distributor cap and spark plug wires.
(f) Install distributor and connect wire con
nector to ignition coil.
(g) Connect ignition switch and tachometer (if
equipped) wire connectors.
(h) Check distributor timing (refer to Ignition
Timing).
NOTE: When diagnosing the cause ofan oil leak at the
rear of the engine, inspect the gasket at the case of the
distributorfor damage.
Rotor Roplacement
(1) Remove distributor cap as described in Distribu
tor Replacement.
(2) Remove rotor. Rotor is retained by two screws
and has a slot that fits over square lug on advance
weight base so that rotor can be installed in only one
position.
Electronic Module Replacement
It is not necessary to remove the distributor from the
engine to replace the module. Refer to figure 1G-8.
(1) Remove distributor cap and rotor.
(2) Remove two module attaching screws and lift
module up.
(3) Disconnect pickup coil wire connector from
module. (Observe wire colors because connectors must
not be interchanged.) Disconnect wire harness
connector.
SCREW
SNAP
RING
ELECTRONIC
MODULE
PICKUP coil
ASSEMBLY
•P" TERMINAL
Fig. 16-8 Distributor Components
PICKUP COIL
CONNECTOR
81180