Pcv Valve Replacement; Oxygen Sensor Replacement; Catalytic Converter Inspection - Suzuki Samurai 1986 Service Manual

8. PCV VALVE REPLACEMENT

1) Disconnect crankcase ventilation hose from
PCV valve.
2) Remove PCV valve from intake manifold.
3) Wind sealing tape on thread of the new valve
and install it securely.
Tightenlng torque
for PCV valve
4) Install hose and clamp it securely.

9. OXYGEN SENSOR REPLACEMENT

[Canadian specification vehicle]
When the odometer indicates 50,000 and 100,000
miles, replace oxygen sensor as follows.
CAUTION:
To avoid the danger of being burned, do
not touch the exhaust system when the
system is hot. This work should be perform-
ed when the system is cool.
1) Disconnect battery negative cable from
battery and disconnect oxygen sensor wire at
the coupler.
1. Oxygen sensor
2. Exhaust manifold
1-10
15 - 25 N.m
1.5 - 2.5 kg-m,
11 .O - 18.0 lb-ft
3. Coupler
fold.
tighten it to specification.
Tightening torque
for sensor
oxygen
4) Connect oxygen sensor- wire at the coupler
securely and clamp its wire.
5) Connect negative cable to battery.
6) Start engine and check for gas leak.
For Canadian specification vehicle, turn on
check switch.
7) Run engine at 1,500 - 2,000 r/min for 30
sec. after warming up engine. Check to be
sure that "CHECK ENGINE" light flashes,
and turn off "CHECK ENGINE" light cancel/
check switch on steering column holder
bracket.
1. Cancel switch (U.S.A.)
Check switch (Canada)
2. instrument panel
3. Steering column
holder bracket
4. Steering wheel

10. CATALYTIC CONVERTER INSPECTION

1) All accessories (wipers, heater, lights, etc.) are
out of service.
2) Warm up engine to normal operating tem-
perature.
3) Connect CO tester to mufler tail pipe.
4) With the engine warmed up, keep the engine
speed at 1,500 to 2,000 r/min. (t-pm). If the
CO concentration is 0.4% or less in this state,
the catalytic converter is in good condition.
If it exceeds the specification, refer to DIA-
GNOSIS (p. 5-15).
45 55 N-m
4.5 - 5.5 kg-m
33.0 - 39.5 lb-ft