Case Isuzu 4JG1 Engine Service Manual
164 pages · Publication 9-93710
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- Models
- Isuzu 4JG1
- Manual type
- Service Manual
- Pages
- 164
- Publication
- 9-93710
- Condition
- Brand new
What's inside
From the manual's own table of contents: 9 sections, 105 entries. See sample pages (PDF, 294 KB)
General11 topics
- DESCRIPTION
- General Information
- Maintenance
- Disassembly
- Inspection and repair
- Reassembly
- Lubricating system
- Cooling system
- Fuel system
- Troubleshooting
- Special tools
GENERAL INFORMATION6 topics
- General repair instructions
- Notes on the format of this manual
- Main data and specifications
- Tightening torque specifications
- Major component mounting nuts and bolts
- Identification
MAINTENANCE4 topics
- Valve clearance adjustment
- Injection timing
- Compression pressure measurement
- Engine repair kit
ENGINE ASSEMBLY (1)5 topics
- External parts disassembly steps
- Rocker arm shaft and rocker arm
- Cylinder head disassembly steps
- Piston and connecting rod disassembly steps
- Camshaft, camshaft timing gear and thrust plate disassembly steps
ENGINE ASSEMBLY (2)17 topics
- Cylinder head
- Valve guide
- Valve and valve seat insert
- Valve spring
- Cylinder block
- Tappet
- Camshaft
- Crankshaft and bearing
- Crankshaft bearing selection
- Crankshaft pilot bearing
- Flywheel and ring gear
- Piston
- Piston ring
- Piston pin
- Connecting rod
- Idler gear shaft and idler gear
- Timing gear case cover
ENGINE ASSEMBLY (3)6 topics
- Rocker arm shaft and rocker arm reassembly
- Cylinder head reassembly
- Piston and connecting rod reassembly steps
- Camshaft, camshaft timing gear and thrust plate
- Major component reassembly steps
- External parts reassembly steps
LUBRICATING SYSTEM2 topics
- Oil pump
- Oil filter with built-in oil cooler
COOLING SYSTEM3 topics
- General description
- Water pump
- Thermostat
TROUBLESHOOTING13 topics
- Hard starting
- 1) Starter motor inoperative
- 2) Starter motor operates but engine does not turn over
- 3) Engine turns over but does not start
- Unstable idling
- Insufficient power
- Excessive fuel consumption
- Excessive oil consumption
- Overheating
- White exhaust smoke
- Dark exhaust smoke
- Oil pressure does not rise
- Abnormal engine noise
REPAIR STANDARDS29 topics
- General rules
- Time for engine disassembly and repair
- Engine body
- 1) Cylinder body
- 2) Cylinder head
- Main operating parts
- 1) Pistons
- 2) Piston ring
- 3) Crankshaft
- 4) Connecting rod
- 5) Camshaft
- Valve system
- 1) Valves
- 2) Tappet
- Intake system
- 1) Air cleaner
- 1) Oil pressure
- 2) Oil pump and relief valve
- 3) Oil filter
- 1) Water pump
- Fuel fuel
- 1) piping, etc
- Electrical
- 1) Charge/discharge indication
- 2) Wiring
- 3) Alternator 12V, 50A (Hitachi)
- 4) Starter 12V, 2.2 kW (Mitsubishi)
- 5) Pre-heater
- Final inspection
Inside this manual
Real pages from this service manual (164 pages). Open the sample pages (PDF, 294 KB)
- Specifications, page 109: 6-2 LUBRICATING SYSTEM
- Troubleshooting, page 147: 10-16 TROUBLESHOOTING
This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 164 pages
Quantity one is the manual described above.
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60-day returns
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Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).