Мануал по двигателю 4jb1

• 2, 00 – 4 SERVICE INF ORMATION 3. ENGINE TURNS OVER BUT DOES NOT START Checkpoint Possible cause Correction Engine s top mechanism Defective fuel cut solenoid valve Replace the fuel cut solenoid valve FUEL IS NOT BEING DELIVERED TO THE INJECTION PUMP F uel Fuel tank is empty Fill the fuel tank F uel piping Clogged or damaged fuel lines. Loose fuel line connection Repair or replace the fuel lines Retighten the fuel line connection F uel filter overflow valve does not close Repair or rep…

• 32, 00 – 34 SERVICE INF ORMATION SERVICE STA NDARD Engine M echanical mm ( in) Serv ice standard Service limit Parts Items 4JG2 4JB1 / 4JB1T / 4JB1TC 4JG2 4JB1 / 4JB1T / 4JB1TC Remarks C ylinder head deck, and exhaust manifold mating surface for flatness 0.05 (0.002) or less 0.2 (0.0079) C ylinder head height 92.0 (3.622) 91.55 (3.6043) C ylinder Head Cylinder Head Lower Face Warpage. Manifold Warpage. Hot plug sinking Hot plug exe…

• 17, SERVICE INF ORMATION 00 – 19 M AGNETIC SWITCH CONTACTS ARE FUSED AND NOT MOVED, OR A RETURN SPRING IS BROKEN OR DETERIORATED NO STAR TER DOES NOT STOP THOUGH STARTER SWITCH IS RETURNED TO “ON” FROM “START” R EPLACE STARTER SWITCH D ISCONNECTED STARTER SWITCH WIRING CONNECTOR, AND CHECK STARTER SWITCH OPERATION. KEY POSITION BATTERY B1 IGNITION IG1 BATTERY B2 ACCESSORIES ACC IGNITION IG2 STARTER ST LOCK OFF AC C ON STAR T TH ERE MUST BE NO CONTINUITY EXCEPT ABOVE LINES…

• 3, SERVICE INFORM ATION 00 – 5 4. QUICK-ON START SYSTEM PREPARAT ION 1 Disconnect the thermoswitch connector. 2. Determine whether or not the glow plugs are receiving power. a) Make sure that the starter switch is “OFF”. b) Connect a voltmeter between one of the glow plugs and the cylinder wall. c) Move the starter switch to the “ON” position. The voltmeter needle will show the souse voltage (12V) if the glow plugs are receiving power. If the voltmeter needle does not mov…

• 39, Isuzu 4JB1 SERVICE INF ORMATION 00 – 41 1. Find a safe place to park the vehicle. 2. Open the engine hood and place a container (Approximately 0.2 liter capacity) at the end of the vinyl hose beneath the drain plug on the separator. 3. Loosen the drain plug by turning it counterclockwise (Approximately 5 turns) and operate the priming pump up and down about 10 times until water is drained approximately 0.1 li…

• 33, SERVICE INF ORMATION 00 – 35 mm ( in) Serv ice standard Service limit Parts Items 4JG2 4JB1 / 4JB1T / 4JB1TC 4JG2 4JB1 / 4JB1T / 4JB1TC Remarks Push rod Curvature — 0.4 (0.0157) or less C amshaft End play Cam lobe height Journal diameter Runout Camshaft bearing inside diameter Camshaft oil clearance 0.08 (0.0031) 42.02 (1.6543) 49.945 — 49.975(1.9663-1.9675) 0.02 (0.0008) or less 50.000 — 50.030 (1.9685 — 1.9697) 0.025 — 0.085 (0.0098 — 0.00334) 0.2 (0.0079) 41.65 (…

• 23, Isuzu 4JB1 SERVICE INF ORMATION 00 – 25 Checkpoi nt Trouble Cause Countermeasure Center housing oil drain passage R estricted Clean or replace Continued f rom the previous page NG OK
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• 1, SERVICE INFORM ATION 00 – 3 1. HARD STARTING 1. STARTER INOPERATIVE Checkpoint Possible cause Correction Loos e battery cable terminal poor connections due to rusting Clean and/or retighten the battery cable terminal Batter y discharged or weak Recharge or replace the battery Battery F an belt loose or broken Adjust or replace the fan belt F usible link Fusible link shorted Replace the fusible link Star ter switch Defect…

• 24, 00 – 26 SERVICE INF ORMATION 4) EXCESSIVE TURBOCHARGER NOISE Checkpoi nt Trouble Cause Countermeasure Intak e and exhaust system joints R estricted Repair Intak e and exhaust system gaskets Dam aged Replac e T urbocharger rotating parts Rough r otation Replac e Rubbing agains t housing Repair or replace Dam aged Replac e Rubbing agains t housing Repair or replace Dam aged Replac e Continued on the nex t page OKOK OK OK NG NG NG NG NG NG NG Com pressor wheel T urbine wheel Car bon d…

• 28, 00 – 30 SERVICE INF ORMATION MA IN DATA AND SPECIFICATIONS M AIN DATA AND SPECIFICATIONS Item Engine Model 4J B1 / 4JB1T / 4JB1TC 4JG2 (G. EXP & EC) Engine ty pe Four-cycle, overhead valve, water cooled Com bustion chamber type Direct injection In direct injection Cy linder liner type Dry type, chrome plated, stainless steel tube T iming train system Gear drive Gear and Belt Drive No. of cylinders — Bore x stroke mm (in) 4 — 93 x 102 (3.66 x 4.02) 4 — 95.4 x 107…

• 60, 00 – 62 SERVICE INF ORMATION SPECIA L TOOLS (CONT.2) LLUSTRATION TOOL NO. TOOL NAME 5- 8840-0259-0 Nozzle Holder Wrench (4JG2 only) 5- 8840-0253-0 (J-22700) Fuel Filter Wrench 5- 8840-2362-0 Front Oil Seal Remover (4JG2, Belt Drive only) 5- 8840-2361-0 Front Oil Seal Installer (4JG2, Belt Drive only) 5- 8840-2360-0 Rear Oil Seal Remover 5- 8840-2359-0 Rear Oil Seal Installer 5- 8840-2040-0 Cylinder Liner Installer (4J…

• 59, Isuzu 4JB1 SERVICE INF ORMATION 00 – 61 SPECIA L TOOLS (CONT.1) ILLUSTRATION TOOL NO. TOOL NAME 5- 8840-2675-0 Compression gauge 5- 8531-7001-0 Gauge Adapter 5- 8531-7002-0 Gauge Adapter 5- 8840-0145-0 Measuring Device 5- 8522-0024-0 Crankshaft Timing Pulley Installer (4JG2 Belt Drive only) 5- 8840-0266-0 Angle Gauge 5- 8840-9016-0 Injection Nozzle Tester 5- 8840-2034-0 Nozzle Holder Remover (4JB1 only) 5- 8840-2038-0 Camshaft Bearing Replacer 5- 8840-2036-0 Front Oil Seal I…

• 30, 00 – 32 SERVICE INF ORMATION Engi ne Cooling Cooling s ystem Radiator Heat radiation capacity kcal/h Heat radiation area m 2 (f t 2 ) F ront area m 2 (f t 2 ) Dr y weight N (Kg/lb) Radiator cap Valve opening pressure kPa (Kg/cm 2 /ps i) Coolant capacity lit (Imp.qt./US qt.) Coolant forced circulation (2 tube in row) Tube type Corrugated 71400 11.78 (126.8) 0.216 (2.325) 105 (10.7/23.6) 88.2 — 116.7 (0.899 — 1.199/12.78 — 17.05) 3.1 (2.73/3.28) (For EC 5.8 (5.1/6.13)) Coolant pum p Pulley ty…

• 10, Isuzu 4JB1 00 – 12 SERVICE INF ORMATION 10. ABNORMAL ENGINE NOISE 1. ENGINE KNOCKING Chec k to see that the engine has been thoroughly warmed up before beginning the troubleshooting procedure. Checkpoint Possible cause Correction F uel Fuel unsuitable Replace the fuel F uel injection timing Fuel injection timing improperly adjusted Adjust the fuel injection timing Inj ection nozzle Improper injection nozzle starting pressure and spray condition Adjust or replace the inje…

• 34, 00 – 36 SERVICE INF ORMATION mm ( in) Serv ice standard Service limit Parts Items 4JG2 4JB1 / 4JB1T / 4JB1TC 4JG2 4JB1 / 4JB1T / 4JB1TC Remarks Piston diameter 95.365 — 95.404 (3.7545-3.9039) 92.985 — 93.024 (3.6600-3.6623) — Piston, Pis ton pin, Piston ring and Connect- ing rod Piston Clearance (Between piston and Cylinder liner) Piston ring gap 1st 2nd Oil Piston ring clearance 1st 2nd 0.047 — 0.065 (0.0019-0.0026) 0.20 — 0.35 (0.0079 – 0.0138) 0.37 — 0.…

• 51, SERVICE INF ORMATION 00 – 53 Ti ming Pulley Housing, Timing Pulley, Timing Gear, Camshaft Oil Seal Retainer N∙m ( kg∙m/lb∙ft) 014LX 001.tif
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• 00 – 30 SERVICE INF ORMATION MA IN DATA AND SPECIFICATIONS M AIN DATA AND SPECIFICATIONS Item Engine Model 4J B1 / 4JB1T / 4JB1TC 4JG2 (G. EXP & EC) Engine ty pe Four-cycle, overhead valve, water cooled Com bustion chamber type Direct injection In direct injection Cy linder liner type Dry type, chrome plated, stainless steel tube T iming train system Gear drive Gear and Belt Drive No. of cylinders — Bore x stroke mm (in) 4 — 93 x 102 (3.66 x 4.02) 4 — 95.4 x 107 (3.76 x 4.21)

• SERVICE INF ORMATION 00 – 39 3. Remove the element from the solution and rinse it well with running water. Water pressure must not exceed 274 kPa (2.8 kg/cm 2 /40Ps i) 4. Dry the element in a well ventilated area. An electric fan will hasten drying. NOTE: Do not use compressed air or an open flame to dry the element quickly. Damage to the element will result. It will usually take two or three days for the element to dry completely. Therefore, it is a good idea to have a spare on hand to use in the interim. LUBRI CATIN

• SERVICE INFORM ATION 00 – 5 4. QUICK-ON START SYSTEM PREPARAT ION 1 Disconnect the thermoswitch connector. 2. Determine whether or not the glow plugs are receiving power. a) Make sure that the starter switch is “OFF”. b) Connect a voltmeter between one of the glow plugs and the cylinder wall. c) Move the starter switch to the “ON” position. The voltmeter needle will show the souse voltage (12V) if the glow plugs are receiving power. If the voltmeter needle does not move, the glow plugs are not receiving power. 3.

• SERVICE INFORM ATION 00 – 3 1. HARD STARTING 1. STARTER INOPERATIVE Checkpoint Possible cause Correction Loos e battery cable terminal poor connections due to rusting Clean and/or retighten the battery cable terminal Batter y discharged or weak Recharge or replace the battery Battery F an belt loose or broken Adjust or replace the fan belt F usible link Fusible link shorted Replace the fusible link Star ter switch Defect

• 00 – 14 SERVICE INF ORMATION 11. ENGINE COOLING TROUBLE Checkpoint Possible cause Correction Low coolant level Replenish T hermo unit faulty Replace F aulty thermostat Replace F aulty coolant unit Repair or replace Clogged r adiator Clean or replace F aulty radiator cap Replace Low engine oil level or use of improper engine oil Replenish or change oil Replenish Dam aged cylinder head gasket Replace Clogged ex haust system Clean exhaust system or replace faulty parts Loos e fan

• 00 – 60 SERVICE INF ORMATION SPECIA L TOOLS ILLUSTRATION TOOL NO. TOOL NAME 5- 8840-2035-0 Crank Timing Pulley (4JG2 Belt Drive only) 5- 8840-0200-0 Oil Filter Wrench (89.0 mm/3.5 in) 5- 8840-0202-0 Oil Filter Wrench (106.0 mm/4.2 in) 5- 8840-2209-0 Oil Filter Wrench (100.6 mm/4.0 in) 9- 8523-1423-0 (J-29760) Valve Spring Compressor 5- 8840-2033-0 Oil Seal Installer 5- 8840-9018-0 Piston Ring Compressor 5- 8840-2093-0 Tacho Meter 9- 8523-1212-0 Valve Guide Replacer 5- 8840

• 00 – 16 SERVICE INF ORMATION F AULTY MESHING OF PINION AND RING GEAR C HECK IF BATTERY VOLTAGE IS PRESENT AT MAGNETIC SWITCH TERMINAL “S” WHEN STARTER SWITCH IS TURNED TO “START (ST)” YES EX TREME WEAR OF PINION AND RING GEAR R EPAIR OR REPLACE STARTER, REPLACE RING GEAR OR NO UNDE R THIS CONDITION, CHECK IF VOLTAGE OF CONNECTOR 3BW ON MAGNETIC SWITCH OF RESTART RELAY IS NORMAL YES NO DI SCONNECTION OR FAULTY CONNECTION BETWEEN STARTER SWIT

• 00 – 58 SERVICE INF ORMATION Engi ne Fuel N∙m ( kg∙m/lb∙ft) 0057- 1.tif
  

• 00 – 34 SERVICE INF ORMATION SERVICE STA NDARD Engine M echanical mm ( in) Serv ice standard Service limit Parts Items 4JG2 4JB1 / 4JB1T / 4JB1TC 4JG2 4JB1 / 4JB1T / 4JB1TC Remarks C ylinder head deck, and exhaust manifold mating surface for flatness 0.05 (0.002) or less 0.2 (0.0079) C ylinder head height 92.0 (3.622) 91.55 (3.6043) C ylinder Head Cylinder Head Lower Face Warpage. Manifold Warpage. Hot plug sinking Hot plug exert pressure 0.05

• SERVICE INF ORMATION 00 – 61 SPECIA L TOOLS (CONT.1) ILLUSTRATION TOOL NO. TOOL NAME 5- 8840-2675-0 Compression gauge 5- 8531-7001-0 Gauge Adapter 5- 8531-7002-0 Gauge Adapter 5- 8840-0145-0 Measuring Device 5- 8522-0024-0 Crankshaft Timing Pulley Installer (4JG2 Belt Drive only) 5- 8840-0266-0 Angle Gauge 5- 8840-9016-0 Injection Nozzle Tester 5- 8840-2034-0 Nozzle Holder Remover (4JB1 only) 5- 8840-2038-0 Camshaft Bearing Replacer 5- 8840-2036-0 Front Oil Seal Installer (4JB1, 4JG2, Gear Drive

• 00 – 26 SERVICE INF ORMATION 4) EXCESSIVE TURBOCHARGER NOISE Checkpoi nt Trouble Cause Countermeasure Intak e and exhaust system joints R estricted Repair Intak e and exhaust system gaskets Dam aged Replac e T urbocharger rotating parts Rough r otation Replac e Rubbing agains t housing Repair or replace Dam aged Replac e Rubbing agains t housing Repair or replace Dam aged Replac e Continued on the nex t page OKOK OK OK NG NG NG NG NG NG NG Com pressor wheel T urbine whe

• 00 – 56 SERVICE INF ORMATION N∙m ( kg∙m/lb∙ft) 036LX 003.tif
  

• SERVICE INF ORMATION 00 – 27 Checkpoi nt Trouble Cause Countermeasure O il level T oo low Co rrect Contam inated Replac e oil T urbocharger oil feed pipe R estricted Repair or replace T urbine housing Car bon deposits Clean Com pressor housing Di rty Clean T urbine shaft bearings Wo rn Replac e OK OK OK OK OK NG NG NG NG NG NG Continued f rom the previous page
  

• 00 – 50 SERVICE INF ORMATION QU ICK-ON START III SYSTEM (4JG2 only) Quick-On Start System Inspection Procedure 1. Disconnect the thermo-sensor connection on the thermostat outlet pipe. 2. Turn the starter switch to the “ON” position. If the Quick-On Start III System is operating properly, the glow relay will make a clicking sound within seven seconds after the starter switch is turned on. 3. Measure the glow plug terminal voltage with a circuit tester immediately after turning the starte

Скачать Isuzu Elf. Модели до 1993 года выпуска с дизельными двигателями 4JA1 (2,5л), 4JB1 (2,8л), 4JB1-T(2,8n, Turbo), 4ВС2 (3,3 л), 4ВЕ1/4ВЕ2 (3,6 л), 4BD1 (3,9 л), 4BD1-T (3,9 л, Turbo). Устройство, техническое обслуживание и ремонт