Rebuilding a PE6 or PE6T from the block up? This 224-page Nissan Diesel Motor Co., Ltd. service manual (OEM #8906261-16834-300-KSS) walks every system, from turbocharger teardown to the engine rear PTO. It carries wiring diagrams for the electrical side, lubrication and cooling schematics with full fluid routing, and exploded views across every major assembly. A troubleshooting diagnosis guide covers the fuel injection pump in both RQ and RFD governor types, the cylinder head, and turbocharger service. Set injection start pressure to 200 kg/cm², then run the head bolts in two passes: 15.0 to 16.0 kgm first, 22.0 to 23.0 kgm final. Bookmarked and keyword-searchable, so the spec is on screen before the wrench is in your hand.
What's Inside This Nissan Diesel Motor Co., Ltd. PE6, PE6T Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 12-17 | Method of Using This Manual, Standardization of Terms, Engine Position, Abbreviation, Maintenance Standard, Wear Limit, Repair Limit, Units |
| Disassembly Judgment | 18-27 | Determining the Need for Engine Overhaul, Troubleshooting Tests, Cause of Trouble and Its Correction, Diagnosis Guide |
| Engine Disassembly and Reassembly | 28-39 | Disassembling Engine (Turbocharger, Right Side of Engine, Front Side of Engine, Left Side of Engine, Rear Side of Engine, Cylinder Head, Engine Proper, Engine Rear P.T.O.) |
| Engine Proper | 40-51 | Adjustment, Cleaning, Inspection, Repair and Replacement |
| Cylinder Head and Valve Mechanism | 52-59 | Disassembly and Cleaning, Inspection, Repair and Replacement, Reassembling |
| Lubrication System | 60-66 | Lubricating System Diagram, Oil Pump, Oil Cooler, Oil Filter |
| Cooling System | 67-75 | Cooling System Diagram, Water Pump, Thermostat, Radiator and Water Tank, Fan and Fan Drive |
| Fuel System | 76-89 | Fuel Injection Pump (Separating Each Component, Boost Compensator, Injection Pump Proper, Installing Each Component, Fuel Feed Pump and Priming Pump, Type Rq Limit Speed Governor, Type Rfd Mechanical Governor, Timer) |
| Air Intake and Exhaust System | 90-99 | Nozzle and Nozzle Holder, Fuel Filter and Overflow Valve, Turbocharger, Air Cleaner |
| Electrical System | 100-110 | Adjusting and Testing Injection Pump, Exhaust Shutter, Air Cylinder, Starting Motor |
| Auxiliary Equipment | 111-124 | Regulator, Air Heater, Air Compressor, Power Steering Oil Pump |
| Engine Test Procedures | 125-128 | Measurement of Compression Pressure, Valve Timing Measurement, Fuel Injection Timing Measurement, Engine Performance Test Methods |
| Service Data | 129-144 | Maintenance Standard Tables, Tables of Tightening Torque |
| Tools | 145-224 | Special Tools (Engine Disassembly and Reassembly, Engine Proper, Cylinder Head and Valve Mechanism, Lubrication System, Cooling System, Fuel System, Air Intake and Exhaust System, Auxiliary Equipment, Engine Test Procedures) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head bolt tightening torque (1st time) | 15.0 to 16.0 kgm | p. 47 |
| Cylinder head bolt tightening torque (2nd time) | 22.0 to 23.0 kgm | p. 47 |
| Fuel filter case center bolt tightening torque | 2.0 - 3.0 kgm | p. 218 |
| Nozzle nut tightening torque | 6 to 8 kgm | p. 120 |
| Injection start pressure | 200 kg/cm² | p. 121 |
| Delivery valve holder tightening torque | 11.0 to 12.0 kgm | p. 106 |
| Camshaft end play repair limit | 0.50 mm | p. 108 |
| Valve opening temperature maintenance standard | 76.5°C | p. 91 |
| Valve opening temperature wear limit | 75.0 to 78.0°C | p. 91 |
| Fit of shaft and impeller maintenance standard | 0.04T to 0.07T mm | p. 90 |
| Water pump gear nut tightening torque | 6.0 to 7.0 kgm | p. 91 |
| Intake valve stem outside diameter nominal dimension | 11.97 to 11.98 mm | p. 75 |
Nissan Diesel Motor Co., Ltd. PE6, PE6T Common Problems This Manual Covers
Nissan PE6 diesel hard to start, cranks slowly or won't fire in cold conditions p. 18
Check the fuel system for air intrusion first. Use the priming pump on page 8-14 to bleed injection lines until solid fuel flows with no bubbles. Replace the fuel filter and torque the center bolt to 2.0-3.0 kgm (page 218). If cranking continues without firing, consult the starting diagnosis chart on page 18.
Manual Section: Engine Starting & Operation IssuesEngine overheats repeatedly with coolant loss, temperature gauge spikes to red zone p. 67
Test the thermostat by suspending it in water heated to 76.5°C; it must begin to open at that temperature (page 91). Inspect the water pump for seal leaks and impeller wear. Verify coolant level: the system holds 51 L total. Flush the radiator passages if flow is restricted, and replace the thermostat if it fails the lift test.
Manual Section: Cooling SystemBlack or white exhaust smoke with noticeable loss of power under load p. 18
Follow the exhaust smoke diagnosis charts on pages 2-9 and 2-10. For black smoke, inspect nozzle spray pattern and adjust valve clearance to 0.4 mm if out of spec. Verify injection timing using the measurement procedure on page 125. For white smoke, check for coolant contamination in the oil and pressure-test the cooling system for head gasket failure.
Manual Section: Engine Starting & Operation IssuesPersistent knocking or rumbling noise from engine block, oil pressure gauge drops under load p. 60
Measure oil pressure at 2,200 rpm; it must exceed 3.5 kg/cm² per page 181 specifications. Check the oil level first (system capacity is 25 L) and inspect the oil filter. Remove and test the oil pump per page 6-2 procedures. Check all main and rod bearing clearances if pressure remains low after filter service.
Manual Section: Lubrication SystemRough idle with excessive valve clatter and uneven cylinder firing across all load ranges p. 52
Inspect and adjust valve clearances to 0.4 mm with the engine cold, following the Cylinder Head And Valve Mechanism procedures starting on page 52. Check cam lobe wear and rocker arm contact surfaces while the head is accessible. Measure valve stem outside diameter; intake nominal is 11.97 to 11.98 mm per page 75. Replace guides if worn beyond service limits.
Manual Section: Cylinder Head And Valve MechanismFrequently Asked Questions
How do I reset the fuel system on a Nissan Diesel PE6/PE6T engine?
There is no single "reset" routine for the whole fuel system. The manual instead gives component-level adjustment and testing steps, mainly for the injection pump and governor after disassembly or part replacement. See "ADJUSTING AND TESTING INJECTION PUMP" on page 8-26 for the calibration sequence.
How do I reset the injection pump on a Nissan Diesel PE6/PE6T?
What the manual calls for is "adjusting and testing," not a reset. Once the pump has been disassembled or had parts replaced, set it up on a pump tester. Initial injection timing for the PE6T is 14° B.T.D.C., with the control rack position covered under "Adjusting procedures" on page 8-31.
What are the torque specs for the cylinder head on a PE6/PE6T?
Head bolt torque comes in two stages for the PE6/PE6T: 15.0 to 16.0 kgm on the first pass, then 22.0 to 23.0 kgm on the second. Both figures are listed in the "TABLES OF TIGHTENING TORQUE" on page 13-21.
What are the torque specs for the connecting rods on a PE6/PE6T?
The connecting rod cap mounting nut on the PE6/PE6T torques to 18.0 to 18.5 kgm. Getting it right matters for clean reassembly. You will find the figure in the "REASSEMBLING ENGINE" section on page 3-8 and again in the "TABLES OF TIGHTENING TORQUE" on page 13-21.
Is this Nissan Diesel Motor Co., Ltd. PE6, PE6T manual a digital download?
A 224-page service manual in searchable PDF, ready the moment checkout completes. Open it on a computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this Nissan Diesel Motor Co., Ltd. PE6, PE6T?
Yes. The PDF carries no DRM, so you can print any page or section you need for the shop. It works with any standard printer.
Are hydraulic system diagrams in this Nissan Diesel Motor Co., Ltd. PE6, PE6T?
Yes, full hydraulic system diagrams are part of the manual, covering circuits, valve locations, and hydraulic component specs for the Nissan Diesel Motor Co., Ltd. PE6, PE6T.
Document Quality
This is a scanned document with an OCR layer, so you can search and copy the full text. The text quality is crisp and easy to read throughout the manual. Diagrams and illustrations are raster images, which appear clear at normal viewing but may show slight pixelation when zoomed in, though their labels remain readable. Pages are generally clean with minor scan artifacts along the edges, without significant stains or skewed content. You will find several blank pages interspersed, typically following major section title pages.
Reviews
There are no reviews yet.