Jeep Wrangler TJ. Manual — part 454
EXHAUST MANIFOLD
DESCRIPTION
The two exhaust manifolds (Fig. 93) are log style
and are made of high silicon molybdenum cast iron.
The exhaust manifolds share a common gasket with
the intake manifold. The exhaust manifolds also
incorporate ball flange outlets for improved sealing
and strain free connections.
REMOVAL
The intake and engine exhaust manifolds on the
4.0L engine must be removed together. The manifolds
use a common gasket at the cylinder head.
(Refer
to
9
-
ENGINE/MANIFOLDS/INTAKE
MANIFOLD - REMOVAL).
Fig. 93 EXHAUST MANIFOLDS 4.0L ENGINE
TJ
ENGINE 4.0L
9 - 131
EXHAUST SYSTEM
TABLE OF CONTENTS
page
page
EXHAUST SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING - EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CATALYTIC CONVERTER
. . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . 5
. . . . . . . . . . . . . . . . . . . . . . . 5
. . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . 6
EXHAUST PIPE
. . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . 8
HEAT SHIELDS
. . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . 8
MUFFLER
. . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . 10
TAILPIPE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EXHAUST SYSTEM
DESCRIPTION
WARNING: THE NORMAL OPERATING TEMPERA-
TURE OF THE EXHAUST SYSTEM IS VERY HIGH.
THEREFORE, NEVER WORK AROUND OR ATTEMPT
TO SERVICE ANY PART OF THE EXHAUST SYSTEM
UNTIL IT IS COOLED. SPECIAL CARE SHOULD BE
TAKEN WHEN WORKING NEAR THE CATALYTIC
CONVERTER. THE TEMPERATURE OF THE CON-
VERTER RISES TO A HIGH LEVEL AFTER A SHORT
PERIOD OF ENGINE OPERATION TIME.
The basic exhaust system consists of exhaust man-
ifold(s), exhaust pipe with oxygen sensors, catalytic
converter(s), heat shield(s), muffler and tailpipe (Fig.
1) and (Fig. 2)
TJ
EXHAUST SYSTEM
11 - 1
Fig. 1 Exhaust system - 2.4L Engine
1 - CATALYTIC CONVERTER
2 - TAILPIPE
3 - MUFFLER
4 - EXHAUST PIPE TO EXHAUST MANIFOLD FLANGE
5 - MINI CATALYTIC CONVERTER
11 - 2
EXHAUST SYSTEM
TJ
EXHAUST SYSTEM (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст