Toyota 4-Runner 1985 Repair Manual page 17

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MAINTENANCE - Maintenance Operations
MA-7
MA0298
MA0309
MA0306
9. REPLACE GASKET IN FUEL FILLER CAP
(a) Remove the old gasket (O-ring) from the fuel filler cap.
Do not damage the cap.
(b) Install the new gasket by hand.
(c) Inspect the cap for damage or cracks.
(d) Install the cap and check the torque limiter.
10.
INSPECT FUEL LINES AND CONNECTIONS
(22R Engine: See page FU-30)
(22R-E Engine:
See page FI-53)
Visually inspect the fuel lines for cracks, leakage or loose
connections.
11. INSPECT EXHAUST PIPES AND MOUNTINGS
Visually inspect the pipes, hangers and connections for
severe corrosion, leaks or damage.
12. FEDERAL 22R-E ENGINE ONLY:
REPLACE OXYGEN SENSOR
(a) Disconnect the oxygen sensor wiring connector.
(b) Remove the oxygen sensor and gasket from the ex-
haust manifold.
(c) Install the new gasket and oxygen sensor to the ex-
haust manifold.
Torque: 200 kg-cm (14 ft-Ib, 20 N·m)
(d) Inspect oxygen sensor operation.
Inspect feed back control.
(See page FI-69)
Hot Engine Operations
13. ADJUST VALVE CLEARANCE
(a) Warm up the engine to normal operating temperature.
(b) Stop the engine and remove the valve cover.
(c) Set No. 1 cylinder to TOe/compression.
• Turn the crankshaft with a wrench to align the tim-
ing marks at TOC. Set the groove on the pulley to
the 0 position.
• Check that the rocker arms on No. 1 cylinder are
loose and rockers on No. 4 are tight.
If not, turn the crankshaft one complete revolution and align
marks as above.