Toyota 4-Runner 1985 Repair Manual page 115

EMISSION CONTROL SYSTEMS (EFI) - Three-Way Catalyst (TWC) System
EC-15
Heat I nsu lator
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EC2903
EC0244
INSPECTION OF HEAT INSULATOR
1. CHECK HEAT INSULATOR FOR DAMAGE
2. CHECK FOR ADEQUATE CLEARANCE BETWEEN
CATALYTIC CONVERTER AND HEAT INSULATOR
REPLACEMENT OF CATALYTIC CONVERTER
1.
2.
REMOVE CONVERTER
(a)
Jack up the vehicle.
(b)
Check that the converter is cool.
(c)
Remove the bolts at the front and rear of the con-
verter.
(d)
Remove the converter and gaskets.
INSTALL CONVERTER
(a) Place new gaskets on the converter front and rear
pipes, and connect the converter to the exhaust pipes.
(b) Tighten the bolts.
Torque: Catalyst - Exhaust pipe
440 kg-em (32 ft-Ib, 43 N ·m)
(c) Reinstall the bracket bolts and tighten them.