Part of the John Deere Repair Manuals.
Finding the right specs for your rebuild is easy with this 547-page John Deere 4239 technical manual pdf, which also covers the 3179, 6359, 4276, and 6414 diesel engines (OEM CTM4). Inside, you get complete teardown procedures for the cylinder block, liners, and pistons, plus a full troubleshooting section to track down rough running conditions. Open to detailed exploded views of the timing gear train and heavy-duty torque tables for every critical fastener. Disconnect the turbocharger oil inlet line from the oil filter housing before rolling the engine over on your stand, and verify the updated dynamic timing values for the fuel injection pump. Stop tearing down blocks blind. Download this bookmarked file, search for your specific engine model by keyword, and get back to turning wrenches.
What's Inside This John Deere Series 300 (3179-6414) Manual
| System | Pages | Key Topics |
|---|---|---|
| Foley Part 1 | 3-84 | Unified Inch Bolt and Cap Screw Torque Values, Metric Bolt and Cap Screw Torque Values, Engine Model Designation, Engine Serial Number Plate Information, Engine Application Chart |
| Cylinder Head and Valves | 85-102 | Valve Seat Inserts, Valve Stem Seals, Cylinder Head Flatness, Cylinder Liner Standout, Cylinder Head Installation, Engine Break-In |
| Cylinder Block, Liners, Pistons, and Rods | 104-152 | Piston and Rod Removal, Cylinder Liner Inspection, Piston Ring Groove Wear, Piston-To-Liner Clearance, Cylinder Block Flatness, Steel Ball Installation |
| Crankshaft, Main Bearings, and Flywheel | 154-201 | Crankshaft Specifications, Vibration Damper, Flywheel removal/installation, Oil Seal Replacement, Main Bearing Clearance, Piston Cooling Orifices |
| Camshaft, Balancer Shafts, and Timing Gear Train | 202-252 | Camshaft Specifications, Balancer Shaft Specifications, Timing Gear Backlash, Valve Lift, Engine Front Plate Replacement, Fuel Injection Pump Timing Mark |
| Foley Part 3 | 339-458 | Cylinder Head and Valves Specifications, Torques, Rocker Arm Adjusting Set Screw, Cylinder Head Cap Screws, Fuel Injection Nozzles-to-Cylinder Head |
| Foley Part 4 | 459-547 | Cylinder Block, Liners, Pistons, And Rods Specifications, Torques, Piston Cooling Orifices Into Cylinder Block, Cylinder Liner Cap Screws, Connecting Rod Cap Screws |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Drive Shaft Bore (in pump housing) | 12.281-12.307 mm (0.4835-0.4845 in.) | p. 295 |
| Wear Limit (Drive Shaft Bore in pump housing) | 12.323 mm (0.4850 in.) | p. 295 |
| Impeller installation below surface of housing (all engines except 6359TF002 with option codes 2007 and 2302, 6414TT006, 6414TT007, 6414TT009 and 6414TT010) | 0.38 mm (0.015 in.) | p. 328 |
| Impeller installation to obtain clearance between inner side of impeller and housing (6359TF002 with option codes 2007 and 2302, 6414TT006, 6414TT007, 6414TT009 and 6414TT010) | 0.39-0.89 mm (0.015-0.035 in.) | p. 328 |
| Injection Pump Drive Shaft Seal Installer | JD256 | p. 365 |
| Nozzle Carbon Stop Seal Installer | JD258 | p. 365 |
| Injection Nozzle Puller | JDE38B | p. 366 |
John Deere Series 300 (3179-6414) Common Problems This Manual Covers
John Deere 3179, 4239, 6359, 4276, and 6414 diesel engine won't start or fire even with ether assist
Check the troubleshooting chart on page 458 for no-start conditions; rule out a dead battery or slow cranking speed. Inspect fuel flow at the filter and base assembly on page 364 for contamination. If the timing gear train was disturbed, torque the oil pump drive gear hex nut to 75 N·m (55 lb-ft) per page 297 before rechecking pump timing.
Manual Section: Diagnosing Engine Malfunctions p. 458Excessive oil consumption or blue exhaust smoke at idle and under acceleration
Inspect the turbocharger center housing for oil in the intake or exhaust piping, a sign of failed shaft seals. Disconnect the oil inlet line from the filter housing per page 54 before pulling the unit. Measure the oil pump drive shaft OD; replace the pump if it exceeds the 12.231 mm (0.4815 in.) wear limit on page 295.
Manual Section: Diagnosing Engine Malfunctions p. 458Loss of power under load with reduced top speed while pulling heavy implements
Check the troubleshooting chart on page 458 for low power complaints and verify the air filter restriction first. Remove the air inlet elbow and inspect for a collapsed hose; torque the elbow cap screws to 47 N·m (35 lb-ft) per page 360 on reassembly. Confirm boost pressure before condemning the turbocharger.
Manual Section: Diagnosing Engine Malfunctions p. 458Coolant leak or overheating at the water pump shaft with rusty streaks below the pulley
Check the troubleshooting chart on page 458 for overheating causes and confirm coolant level and belt tension. Remove the water pump and inspect the impeller; install a new impeller 0.38 mm (0.015 in.) below the housing surface per page 328. Torque the pulley-end cap screw to 115 N-m (85 lb-ft) and pressure test the cooling system before returning to service.
Manual Section: Diagnosing Engine Malfunctions p. 458Low oil pressure warning light or gauge reading near zero at idle after a hot restart
Check the troubleshooting chart on page 458 for low oil pressure and verify the sending unit before condemning the pump. Remove the oil pump and measure the drive shaft OD against the 12.231 mm (0.4815 in.) wear limit on page 295; replace the pump if undersize. Torque the new drive gear hex nut to 75 N·m (55 lb-ft) per page 297.
Manual Section: Diagnosing Engine Malfunctions p. 458Frequently Asked Questions
What are the recommended service intervals?
The manual refers to the Operator's Manual for detailed service intervals. However, it specifies that if diesel fuel with sulfur content greater than 0.5% is used, the service interval should be reduced by 50%. After the preliminary break-in, an additional 100-hour break-in period is recommended, during which John Deere Engine Break-In Oil and a new John Deere oil filter should be used. p. 2
What fluids and capacities does this machine require?
The machine requires SAE 15W-40 viscosity grade diesel engine oil, with John Deere PLUS-50® being preferred. For grease, John Deere MOLY HIGH TEMPERATURE EP GREASE, John Deere HIGH TEMPERATURE EP GREASE, or John Deere GREASE-GARD™ are recommended. The engine coolant should be a 50/50 mixture of quality water and ethylene glycol concentrate. Specific engine crankcase oil fill quantities vary by machine and engine model, and are listed in tables on pages 20-6 through 20-13, for example, a Harvester 4420 (CD6359DH-01) requires 11.5 L (12.0 qt). p. 32
How to troubleshoot engine won't start?
If the engine is hard to start or will not start, possible causes include electrical system malfunction (loose or corroded battery connections, weak battery, defective main switch or start safety switch, starter solenoid defective), fuel system malfunction (empty fuel tank, improper fuel, water/dirt in fuel, plugged fuel filter, shut-off control, dirty/faulty fuel injection nozzles, defective fuel injection pump, defective fuel transfer pump, fuel injection pump incorrectly timed), or service problem (too high viscosity crankcase oil). For example, a weak battery requires checking battery connections and charging/replacing the battery. p. 458
What are the valve clearance specifications?
The valve clearance specifications for engine cold (rocker arm-to-valve tip) are 0.35 mm (0.014 in.) for intake valve and 0.45 mm (0.018 in.) for exhaust valve. These clearances apply to 3-cylinder, 4-cylinder, and 6-cylinder engines. p. 66
What torque specifications are listed?
The manual lists extensive torque specifications for various components across different engine systems. For example, cylinder head cap screws (114 mm length) require a multi-step tightening process: Step 1 to 47 N·m (35 lb-ft), Step 2 to 90 N·m (66 lb-ft), Step 3 to 130 N·m (95 lb-ft), and Step 4 requires retorque after break-in. Connecting rod cap screws for 3179, 4239, 6359 Engines are 75 N·m (55 lb-ft), and for 4276, 6414 Engines are 130 N·m (95 lb-ft). p. 68
What format is this John Deere 3179 & variants manual in?
This is a 547-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Am I able to print pages from this John Deere 3179 & variants manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
