Part of the Case Repair Manuals.
When the head comes off and the deck needs checking, the Case 6-590, 6T-590, 6TA-590 service manual PDF, factory number 7-67681, puts all 357 pages of original shop data for these six-cylinder diesel engines on your bench. Rebuild procedures take up most of the book: crankshaft reconditioning, valve guide and seat replacement, camshaft installation, and flywheel housing alignment, each ending with the measurements that tell you the part is fit to run. Separate turbocharger chapters handle the HX35W, from disassembly through wastegate calibration, and the fuel section walks through timing on both the CAV and Bosch VE injection pumps. Check deck flatness against the 0.075 mm overall warpage limit before you commit to resurfacing, then pull the short head bolts down to 90 Nm plus a 90 degree turn. Nobody wants to tear down a fresh rebuild twice. Bookmarked and keyword searchable, the PDF goes wherever the engine is, on a stand or in service.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-11 | Standard Torque Specifications, Product Loctite Chart |
| Specification Details (6-590 Diesel Engine) | 12-25 | Run-In Instructions, Identification Marks, Cylinder Block Specifications, Piston and Ring Specifications, Crankshaft Specifications, Special Torques |
| Cylinder Head and Valve Train | 26-73 | Cylinder Head Removal, Valve Guide Replacement, Valve Seat Installation, Refacing Valves, Rocker Arm Assembly, Adjusting Valve Clearance |
| Cylinder Block (Crankshaft, Pistons, Rods, Sleeves, Camshaft, Bearings, Seals and Flywheel) | 74-159 | Engine Block Servicing, Cylinder Wall Inspection, Piston and Rod Removal, Crankshaft Reconditioning, Camshaft Installation, Flywheel Housing Alignment |
| Lubrication System (Oil Pan, Oil Pump, Oil Cooler and Oil Filter Housing) | 160-177 | Lubrication Flow Diagrams, Oil Pump Removal and Installation, Oil Pressure Relief Valve, Oil Cooler Service, Oil Pan Installation |
| Cooling System (Thermostat, Water Pump, Fan Pulley and Belt Tensioner) | 178-195 | Water Pump Service, Thermostat Replacement, Coolant Inlet Servicing, Fan Pulley Servicing, Belt Tensioner Servicing, Coolant Flow Diagrams |
| Turbocharger (6T-590 and 6TA-590) | 196-221 | Turbocharger Removal and Inspection, Disassembly and Assembly, Troubleshooting Guide, Wastegate Calibration |
| HX35W Turbocharger | 222-247 | Turbocharger Service, Wastegate Calibration, Cross Section Diagrams, Troubleshooting Guide |
| Fuel System and Filters | 248-265 | Fuel Filter Replacement, Lift Pump Service, Primer Pump Testing, Fuel Injection Pump Timing, Fuel Injector Maintenance |
| Fuel System | 266-357 | Fuel System and Filters, Cav Injection Pump (Pump Drive Gear, Timing Pin, Fuel Shutoff Solenoid, Primmer Pump and Pump Timing) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder Head Bolts (Short) | 90 Nm Plus 90 Degrees | p. 26 |
| Cylinder Head Bolts (Long) | 120 Nm Plus 90 Degrees | p. 26 |
| Camshaft Retaining Bolts | 21 to 27 Nm | p. 20 |
| Cylinder Head Maximum Warpage | 0.010 mm in any 50 mm diameter area or more than 0.075 mm overall end to end or side to side | p. 28 |
| Maximum amount of material that can be removed during resurfacing | 1.0 mm | p. 28 |
| ID of Bushing Installed | 54.107 to 54.133 mm | p. 79 |
| Relief Valve Plug Torque | 80 Nm | p. 162 |
| Oil Pump Relief Valve Spring (2 Hole) Free Length | 55.83 mm | p. 162 |
| Adapter Connection Bolts | 20.5 Nm (181 lb inch) | p. 224 |
| Fuel injector line bracket bolts torque | 24 Nm | p. 255 |
| Lift pump output pressure (Diaphragm Type) | 21 kPa (3 PSI) Min. | p. 268 |
| Lift pump output pressure (Piston Type - In-line Injection Pumps) | 172 kPa (25 PSI) Min. | p. 268 |
