Muffler Installation; Front Exhaust Pipe Removal; Front Exhaust Pipe Installation; Rear Exhaust Pipe Or Tailpipe Removal - Jeep 1987 Wrangler Workshop Manual

EN6INES
EXHAUST SYSTEMS
Insert a chisel tipped tool between the tailpipe
and the muffler in several places to loosen the
pipe from the muffler.
Disconnect the hanger from the rear of the
muffler.
Heat the rear exhaust pipe-to-muffler joint with
an oxyacetylene torch until the metal becomes
cherry red.
Place a block of wood against the front of the
muffler and drive the muffler to the rear to
disengage it.
Drive the muffler off the tailpipe.
MUFFLER INSTALLATION
Drive the tailpipe into the replacement muffler.
Ensure that the locator on the tailpipe aligns with
the muffler slot.
Drive the rear exhaust pipe into the muffler or the
muffler into the rear exhaust pipe, as applicable.
Ensure the pipe has sufficient clearance from
the floor pan.
Install the clamps and hangers.
Start the engine and inspect for exhaust leaks
and contact with the body panels.
FRONT EXHAUST PIPE REMOVAL
Disconnect the front exhaust pipe from the
exhaust manifold.
FRONT EXHAUST PIPE INSTALLATION
Connect the rear of the replacement pipe to the
converter.
Clean the mating surface of the exhaust mani-
fold flange. Connect the pipe to the manifold but
do not tighten. Use replacement nuts.
Align the pipe. Tighten the clamp at the con-
verter. Secure the pipe flange to the manifold
flange. Tighten the nuts with 27 N-m (20 ft-lbs)
torque.
REAR EXHAUST PIPE or TAILPIPE REMOVAL
To remove a tailpipe, cut the pipe close to the
muffler. Collapse the part remaining in the
muffler and remove.
To remove the rear exhaust pipe, cut the pipe
close to the converter. Collapse the section
remaining in the converter and remove. Twist
the pipe to disengage it from the muffler.
REAR EXHAUST PIPE or
TAILPIPE INSTALLATION
To install a rear exhaust pipe, disconnect the
muffler hanger and lower the front of the muffler.
Connect the pipe to the muffler and converter.
Install the muffler hanger before tightening the
clamps.
To install a tailpipe, support the vehicle by the
side sills. Connect the tailpipe to the muffler.
Install the clamp and hangers.
Disconnect the rear end of the pipe from the
catalytic converter.