1987 NISSAN PULSAR maintenance

120 Emission Control
If the flap does not operate as described, renew
the air cleaner housing.

(2) Disconnect the vacuum hose from the servo
unit and connect it to a vacuum gauge.
(3) Start and run the engine at approximately
1 200 rpm. If the engine is cold there should be
vacuum. (4) As the engine temperature increases the
vacuum should decrease to zero. If the vacuum gauge does not read as described,
check that the vacuum supply hose is connected to the
thermal vacuum valve and the throttle body.

If no fault is found, renew the thermal vacuum
valve.

4. EXHAUST CONTROL SYSTEM
DESCRIPTION
The exhaust system is the greatest source of
pollutant emission from the internal combustion
engine.

On the Pulsar range of vehicles covered by this
manual, the exhaust control system consists of a
catalytic converter and the engine management sys-
tem. The engine management system constantly mon-
itors the exhaust gases via an oxygen sensor located in
the exhaust system. Fuel injection is then adjusted
accordingly to give the minimum amount of exhaust
emissions. Refer to the Fuel and Engine Management
section for further information.

CATALYTIC CONVERTER
The catalytic converter, which is located in the
exhaust system, converts hydrocarbons, oxides of
nitrogen and carbon monoxide present in the exhaust
gases into carbon dioxide, nitrogen, water and heat.

The catalytic converter does not require periodic
maintenance or replacement under normal circum-
stances. However, it can be damaged or poisoned by
excessively high exhaust gas temperatures, raw fuel
and the use of leaded fuel.

Installed view of the catalytic converter.
To prevent the use of leaded fuel, a small diam-
eter fuel filler neck with a spring loaded trap door is
used.

To prevent damage to the catalytic converter, the
following precautions sh ould be observed.

(1) Do not operate the vehicle on leaded fuel.
(2) Do not push or tow start the vehicle.
(3) Do not allow the engine to idle for prolonged
periods. (4) Do not operate the vehicle if the engine is
misfiring.
(5) Avoid running the vehicle out of fuel.
(6) Ensure that the engine oil is formulated to
contain low phosphorous levels.
To Inspect Catalytic Converter

(1) Inspect the converter for dents and damage.
If the converter is damaged, it should be renewed. (2) Inspect the converter heat shield for damage
and ensure that it is positioned correctly. Renew the
converter heat shield if necessary.
To Remove and Install
To remove and install the catalytic converter,
refer
to the Exhaust System heading in the Engine section.

142 Automatic Transaxle
(8) Install the dipstick and start the engine and
recheck the fluid level.

NOTE; Do not overfill the transaxle or
foaming and unsatisfactory operation of the
transaxle will result.

TO DRAIN AND REFILL
This is not a normal maintenance and lubrication
procedure. It is only necessary to drain the complete
system, including the torq ue converter and the oil
cooler, when the transaxle assembly is removed for
overhaul or the renewal of transaxle components such
as bearings, clutches or as semblies. When this condi-
tion arises, the torque converter and the cooler should
be cleaned and flushed to remove any dirt or sludge.

After transaxle overhaul, install approximately 6
liters of new transaxle fluid, and top up as previously
described.

4. BRAKE BAND
Band adjustment is not a normal maintenance
procedure.

The adjustment entails removal of the valve body
and for this reason the vehicle should be taken to an
authorized dealer.

5. KICKDOWN CABLE
TO ADJUST
(1) On models with a 1.6 liter engine, remove
the air cleaner assembly. (2) With the aid of an assistant, ensure that the
throttle valve is fully open when the throttle pedal is
fully depressed. (3) Push the clip on the outer kickdown cable
and pull the cable away from the throttle linkage.


View of the kickdown cable adjustment point. 1.6 liter
engine.
(4) Slowly depress the throttle pedal to the full
throttle position.

The outer kickdown cable will automatically ad-
just and emit a clicking noise.

6. TRANSAXLE SELECTOR LINKAGE
TO ADJUST CONTROL CABLE
(1) Place the selector lever in the Park position.
(2) Loosen the control cable locknuts and ensure
that the transaxle selector lever is in the Park position.

View of the transaxle selector linkage control cable
adjustment.
(3) Hold the selector rod horizontal and adjust
the outer locknut until it touches the selector rod.

(4) Tighten the inner locknut securely.
7. NEUTRAL SAFETY SWITCH
The neutral safety switch, incorporating the re-
verse lamp switch is located on the transaxle case

View of the kickdown cable adjustment point. The
arrow indicates the direction in which the outer kick-
down cable must be pulled to initiate the automatic adjustment. 1.8 liter engine.

Electrical System 195
(2) Remove the battery holding clamp and lift
the battery from the vehicle.

Installation is a reversal of the removal procedure
with attention to the following points:

Ensure that the terminals and posts are
clean. When connecting the l eads to the battery,
ensure that the polarity is correct. Connect the
positive lead first. Do not over tighten the terminal clamp
nuts.
Apply petroleum jelly to the battery termi-
nals to prevent corrosion.
MAINTENANCE

Battery maintenance should be performed at the
scheduled services.

NOTE: Keep naked flames away from the
battery as the battery gases are highly
explosive.

(1) Keep the battery and the surrounding area
clean and dry. In particular, ensure that the top of the
battery is free from dirt and moisture to prevent a
voltage drop between the terminals.

If necessary, clean the battery case as follows:
Remove the battery from the vehicle as
previously described.
Pour hot water over the battery being careful
not to allow any water to enter the battery through the
filler cap vent holes. Wipe the battery case clean.
Clean the battery terminals and posts using a
battery post cleaner, wire brush or emery cloth.
Remove all dirt and corrosion.
Remove the filler caps and check that the
vent holes are clear. Check the electrolyte le vel and replenish with distilled water as necessary. The correct level is just
above the top of the plates. Do not overfill the battery.
Do not transfer electrolyte from one cell to another.

(5) If the battery electrolyte requires frequent
replenishing, check the batt ery case for cracks. If the
case is damaged, renew the battery.

Check for overcharging by measuring the output
of the alternator as described later in this section.

Apply petroleum jelly to the battery termi-
nals to prevent corrosion. If the electrolyte has overflowed and contam-
inated the battery carrier and surrounding body
panels, proceed as follows:
With the battery removed from the vehicle,
sprinkle bicarbonate of soda over the contaminated
areas.
Pour hot water over the bicarbonate of soda.
The bicarbonate of soda will react with the water and
begin to foam. When the bicarbonate of soda has stopped
foaming, rinse the area with clean water and allow to
dry. Remove any blistered paint from the con-
laminated areas. Paint the contaminated areas with a corro-
sion inhibiting paint.
TO TEST AND CHARGE

(1) Using a hydrometer, test the specific gravity
of the battery electrolyte. Refer to the following chart
which shows charge conditi ons for various specific
gravity readings.

1.110-1.130............................... Fully discharged
1.140-1.160..............................Nearly discharged
1.170-1.190 ........................... Approximately one
quarter charged
1.200-1.220..................................... Half charged
1.230-1.250......................... Approximately three
quarters charged
1.250-1.280..................................... Fully charged

These readings are for electrolyte at a temperature
of 20 deg C. For every 10 deg above 20 deg C, add
0.007. For every 10 deg below 20 deg C, subtract
0.007.

NOTE: An accurate specific gravity reading
cannot be obtained if distilled water has
recently been added to the electrolyte. If the
electrolyte level is below the battery plates,
replenish with distilled water and charge the
battery before testing the specific gravity.

(2) If a low state of charge is indicated, or if the
specific gravity readings vary more than 0.030 be-
tween cells, the battery s hould be 'charged, using a
battery charger, with attention to the following points:

(a) Disconnect the negati ve and positive battery
terminals.
Cleaning the battery terminals using a battery post
cleaner.