Jeep Engines - Oljeep

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T - n r i4.7L POWER TECH V-8 365EXHAUST SYSTEMExhaust ManifoldsExhaust manifolds are log style with ii patcnted flowenhancing design to maximir.e pcrfornimce. The exhaustmanifolds are made of high silicon molybdenum cast iron. Aperforated core graphite cxhaust manifold gasket is used toimprove sealing to the cylinder liead. Exhaust iiianitolds arecovered by a three layer larninated heat shield for thermalprotection and noise reduction. Heat shields are fastened witha torque prevailing nut that is backed off slightly to allow forthe thermal expansion of exhaust manifolds.Oxygen SensorsThe exhaust system uses oxygen wnsors to detect exhaustgasses. These gasses arc sampled to determine whether thesystem is rich (to much fuel) or lean (not enough fuel). ThePowertrain Control Module (PCM) then makes theappropriate ad.justnient to the fuel system.Muffler and TailpipeThe 4.7L engine uses a galvanized steel muffler to controlexhaust noise levels and exhausl backprcssure.The tail pipe is also made of gnlvani/ccl steel and channelsthe exhaust out of the muffler and out lrom under thevehicle to control noise and prevent exhaust gas luiiies fromentering the passenger compartment.IGNITION SYSTEMThe 4.7L V-8 engine uses a dedicated and individually l‘iredcoil for each spark plug (8 total). Each coil is mounteddirectly to the top of each spark plug. A scparate electricalconnector is used for each coil.Because of coil design, spark plug cables (secondarycables) are not used. A distributor is also not used.The ignition system is controlled by the Powertrain ControlModule (PCM), and consists of:Spark PlugsIgnition CoilsPowertrain Control Module (PCM)Crankshaft Position SensorCamshaft Position SensorThe MAP, TPS, IAC and EC‘T also have ;in et‘l’ect onthe control of the ignition system.Spark PlugsThe 4.71, V-8 engine is equippcd with “fired-in suppressorseal,” resistor-type spark plugs using a copper core grounde I cc t rode. To pre ve n t pos s i b I e pre- i g ni t i on and/ormechanical engine damage, the correct type/heatrange/nuniber spark plug iniist be used.4.71, V-8 engine spark plugs have resistance values rangingfrom 6,000 to 20,000 ohms (when checked with at least a1,000 volt spark plug tester). DO NOT use an ohmmeter tocheck the resistance values of the spark plugs. Inaccuratereadings will result. Remove the spark plugs and examinethem tbr burned electrodes and fouled, cracked or brokenporcelain insulators. Keep plugs arranged in the order inwhich they were reniovcd from the engine. A single plugdisplaying an abnormal condition indicatcs that a problemexists in the corresponding cylinder. Replace spark plugs atthe intervals recommended in your owner’s manual.Spark plugs that have low rnileagc may be cleaned andreused if not otherwise defective, carbon or oil fouled.Caution: Never use a motorized wire wheel brush to cleanthc spark plugs. Metallic dcposits will remain on the sparkplug insulator and will cause plug misfire.Because of the use of aluminum cylinder heads on the 4.7Lengine, spark plug torque is very critical. Refer to theproper service manual for procedure and specifications.Ignition Coils'lie 4.7L V-8 engine uses a dedicated and individually firedcoil (Figure 6-22) for each spark plug (8 total). Each coil ismounted directly to the top of‘each spark plug.Battery voltage is supplied to the 8 ignition coils from theASD relay. The Powertrain Control Module (PCM) opensand closes each ignition coil ground circuit at a determinedtime foi- ignition coil operation.Base ignition timing is not adjustable. By controlling thecoil ground circuit, the PCM is ahle to set the base timingand aci,iiist the ignition timing advance. This is done to meetchanging engine operating conditions.Thc ignition coil is not oil filled. The windings areembedcicd in an epoxy compound. This provides heat andince that nllows the ignition coil to beinounted on the engine.I3ccausc of coil design, spark plug cables (secondarycahles) are not uwd.
T - r 7366 MOPAR PERFORMANCE PARTSO-RINGIGNITIONCOILELECTRICALCONNECTORFigure 6 - 2280676fe6TROUBLESHOOTINGCylinder Compression Pressure TestThe results of a cylinder compression pressure test can beutilized to diagnose several engine malfunctions.Ensure the battery is completely charged and the enginestarter motor is in good operating condition. Otherwise, theindicated compression pressures may not be valid fordiagnosis purposes.
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--Part Number: P5007161$30.00,
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AcknowledgementsThe information pre
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CONTENTSiContentsIntroductionWELCOM
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CONTENTSiiiIgnition SystemTHROTTLE
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CONTENTSVCOMPRESSION RATIO ........
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CONTENTSviiThrottle Body ..........
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CONTENTSixPiston and Connecting Rod
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CONTENTSxiEXHAUST SYSTEM ..........
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CONTENTSxiiiSSI IGNITION COMPONENTS
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Introduction
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INTRODUCTION 3IntroductionWELCOMEWe
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Chapter 1Jeep History
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JEEP HISTORY 7Jeep HistoryThe Jeep
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JEEP HISTORY 9A Jeep By Any Other N
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JEEP HISTORY 11Perhaps one of the m
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JEEP HISTORY 131953 Jeep CJ-3BKaise
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JEEP HISTORY 15Birth of the Sport U
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-r -1 r7JEEP HISTORY 17The Wagoneer
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JEEP HISTORY 19Interior appointment
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JEEP HISTORY 21Chrysler Corporation
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JEEP HISTORY 231994 Jeep Grand Cher
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Chapter 22.5L Power Tech In=Line 4
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~~2.5L POWER TECH IN-LINE 4 (INTROD
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Flywheel Attaching PackageBolts req
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~T --TriINTRODUCTIONThe 2.5L engine
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2.5L POWER TECH IN-LINE 4 (CRANKSHA
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UPPERSHOCKI2.5L POWER TECH IN-LINE
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2.5L POWER TECH IN-LINE 4 (PISTONS
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INTRODUCTIONThe 2.5L engine uses a
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2.5L POWER TECH IN-LINE 4 (CYLINDER
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CAMSHAFT2.5L POWER TECH IN-LINE 4 (
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- -1 n~~~~2.5L POWER TECH IN-LINE 4
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l- -7 ‘72.5L POWER TECH IN-LINE 4
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2.5L POWER TECH IN-LINE 4 (OILING S
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~~2.5L POWER TECH IN-LINE 4 (OILING
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2.5L POWER TECH IN-LINE 4 (FUEL DEL
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-7-2.5L POWER TECH IN-LINE 4 (FUEL
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~~~ ~~ ~~~2.5L POWER TECH IN-LINE 4
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~ Exhaust2.5L POWER TECH IN-LINE 4
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~~~2.5L POWER TECH IN-LINE 4 (ENGIN
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Chapter 32.46L In-Line 4
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T- T - T2.46L IN-LINE 4 (BLOCK) 103
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INTRODUCTIONThe Jeep 2.46L (258 CID
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2.46L IN-LINE 4 (CRANKSHAFT) 1072.3
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PISTON AND CONNECTING ROD ASSEMBLYT
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Pistons and Rings2.46L IN-LINE 4 (P
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2.46L IN-LINE 4 (CAMSHAFT AND VALVE
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Engine Assembly2.46L IN-LINE 4 (ENG
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2.46L IN-LINE 4 (ENGINE ASSEMBLY) 1
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l- -ll--l2.46L IN-LINE 4 (ENGINE AS
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Chapter 44.0L Power Tech ln=Line 6
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4.OL POWER TECH IN-LINE 6 (INTRODUC
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4.0L POWER TECH IN-LINE 6 (BLOCK) 1
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4.OL POWER TECH IN-LINE 6 (BLOCK) 1
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4.0L POWER TECH IN-LINE 6 (BLOCK) 1
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~~INTRODUCTIONThe 4.0L engine uses
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~~T -'I 14.0L POWER TECH IN-LINE 6
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4.0L POWER TECH IN-LINE 6 (CONNECTI
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-1174.0L POWER TECH IN-LINE 6 (CYLI
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- n ri4.0L POWER TECH IN-LINE 6 (CA
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T ^ T 74.0L POWER TECH IN-LINE 6 (C
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T - T 74.0L POWER TECH IN-LINE 6 (C
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4.01. POWER TECH IN-LINE 6 (COOLING
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4.0lL POWER TECH IN-LINE 6 (COOLING
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4.0L POWER TECH IN-LINE 6 (INDUCTIO
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T - T TINTRODUCTIONThe fuel deliver
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-r --T 74.0L POWER TECH IN-LINE 6 (
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4.01. POWER TECH IN-LINE 6 (EXHAUST
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4.0L POWER TECH IN-LINE 6 (IGNITION
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- -'7INTRODUCTIONThe starting syste
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T - T 7Chapter 54.2L In=Line 6
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4.2L IN-LINE 6 (BLOCK) 285Disassemb
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4.2L IN-LINE 6 (CRANKSHAFT) 287Insp
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4.2L IN-LINE 6 (CRANKSHAFT) 2915. R
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4.2L IN-LINE 6 (CYLINDER HEAD) 299R
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~4.2L IN-LINE 6 (CAMSHAFT AND VALVE
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4.2L IN-LINE 6 (OILING SYSTEM) 309S
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4.2L IN-LINE 6 IlNDUCTlON SYSTEM) 3
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Page 394 and 395: 360 AMC V-8 (INTRODUCTION) 375Note:
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Page 398 and 399: -r -TTT360 AMC V-8 (BLOCK) 379Plast
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Page 402 and 403: 360 AMC V-8 (CRANKSHAFT) 3836. Remo
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360 AMC V-8 (INDUCTION SYSTEM) 415F
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360 AMC V-8 (INDUCTION SYSTEM) 417A
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360 AMC V-8 (INDUCTION SYSTEM) 419~
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T -1[-7FUEL PUMPSThe fuel pumps of
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360 AMC V-8 (FUEL DELIVERY SYSTEM)
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~Ignition System360 AMC V-8 (IGNITI
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360 AMC V-8 (IGNITION SYSTEM) 427Th
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360 AMC V-8 (IGNITION SYSTEM) 4292.
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360 AMC V-8 (IGNITION SYSTEM) 431Va
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360 AMC V-8 (IGNITION SYSTEM) 433VO
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T - T IENGINE ASSEMBLY360 AMC V-8 (
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l- -17360 AMC V-8 (ENGINE ASSEMBLY)
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360 AMC V-8 (ENGINE ASSEMBLY) 439V-
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360 AMC V-8 (ENGINE ASSEMBLY) 443
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Chapter 8Off- Roading and Racing
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OFF-ROAD DRIVINGOff-Roading and Rac
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OFF-ROADING AND RACING 4534. Tracti
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OFF-ROADING AND RACING 45510. Wilde
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OFF-ROADING AND RACING 457Sunday Mo
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OFF-ROADING AND RACING 45910. Can m
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.. .OFF-ROADING AND RACING 4611. Of
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OFF-ROADING AND RACING 4634. Water
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OFF-ROADING AND RACING 465As far as
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OFF-ROADING AND RACING 4671. Maga,.
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OFF-ROADING AND RACING 469Mopar has
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OFF-ROADING AND RACING 471Always re
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T -7-7OFF-ROADING AND RACING 4732.
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OFF-ROADING AND RACING 475Driveshaf
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OFF-ROADING AND RACING 477DRAG RACI
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OFF-ROADING AND RACING 479At this p
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OFF-ROADING AND RACING 481Does the
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OFF-ROADING AND RACING 483Stage IIE
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OFF-ROADING AND RACING 485RS5000 Ce
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OFF-ROADING AND RACING 487General P
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I- - 7 1OFF-ROADING AND RACING 489M
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~~OFF-ROADING AND RACING 491Sportsw
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Chapeer 9Additional Infomationl- -
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ADDTIONAL INFORMATION 495TorqueQuar
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ADDTIONAL INFORMATION 497METRIC TO
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Jeep Engines - Oljeep

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