1989-1994 Nissan Skyline GT-R R32 Service Manual
Complete RB26DETT twin-turbo engine service procedures with compression testing, valve clearance specs, turbocharger diagnostics, and ECCS electronic control system troubleshooting.
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Models Covered & Key Technical Specifications
Nissan Skyline GT-R R32 (E-BNR32) — 1989–1994 Consolidated Mechanical Repository | Skyline GT-R Series Edition.
- Calibrated Output Density: Engine displacement reaches 2,568 cm³ (156.70 cu in) is established at peak cylinder volume Architecture.
- Rated Rotational Force: Compression pressure measures 4,177 kPa (412.9 kg/cm², 174 psi) at 300 rpm is standardized to combustion pressure Norms.
- Critical Containment Volume: Oil pan capacity totals 4.5 L (4 imp qt) reaches the lubrication system requirement Bounds.
- Universal Current Rating: Idle speed control achieves 960 rpm (M/T) dictates engine speed stability Topology.
- Maximum Speed Rating: Ignition timing fire point specifies 20° BTDC at 950 rpm represents spark advance setting Matrix.
- Documented Native Resolution: Valve clearance specifications set intake at 0.51 mm (0.020 in) warm condition represents precision tolerance Standards.
Professional Workshop Service Manual & Technical Specifications
Expert Quality Shop Manual: 1989-1994 Nissan Skyline GT-R R32 Service & Maintenance Reference
Model-Designation: Nissan GT-R R32 (1989-1994) // Unit-Designations: RB26DETT Engine Twin-Turbo System Logic // Model-Designation: Comprehensive ECCS Electronic Control & Complete Powertrain Documentation.
| Metric | System-Path | Calibration-Data |
|---|---|---|
| Engine Specifications | RB26DETT DOHC EGI Twin-Turbo | Displacement 2,568 cm³, compression ratio 8.5:1 |
| Control Systems | ECCS (Electronically Concentrated Engine Control) | Self-diagnosis modes, fault alarm indication systems |
| Fuel Management | Multi-point Injection with Air-Fuel Ratio Feedback | Fuel pressure specifications and regulator reference data included |
| Emission Equipment | Three-Way Catalyst & Deceleration Control | Temperature warning equipment documentation provided |
| Turbocharger Systems | Dual-Stage Sequential Turbos with Wastegate Control | Boost pressure control solenoid specifications documented |
Major sections focus on engine mechanical procedures and systems inspection, fuel system documentation addresses injection timing and pressure regulation, exhaust system inspection covers both catalytic converter and temperature control equipment, and transmission service addresses removal and installation protocols. Engine electrical systems detail battery inspection and starter motor procedures, cooling water systems specify filling procedures and thermostat operation, and ignition systems reference spark plug maintenance and coil inspection. Timing belt procedures address pulley positioning and tension adjustment, cylinder head assembly documents valve clearance reference data and camshaft inspection methods, and engine overhaul covers crankshaft bearing selection and piston ring specifications.
Structured Topology
The documentation addresses ECCS diagnostic procedures with self-diagnosis mode operation, fault code identification, and real-time monitoring capabilities. Troubleshooting methodology includes customer interview guidelines, problem confirmation procedures, and individual system inspection flowcharts. Data monitor operations document input signal monitoring, exhaust gas sensor feedback status, and switch ON/OFF diagnostics. Actuator system inspection covers fuel pump relay operation, injector control signal verification, and AAC valve testing protocols. The manual provides trouble diagnostic charts by specific problems—unable to start scenarios, hard cold or warm weather starting conditions, idling control failures, and driveability issues including engine breathing, knocking, and acceleration problems.
Advanced Architecture
Assembly and disassembly procedures detail cylinder head component removal sequences, camshaft bracket installation with knock pin alignment, valve spring compressor usage and collet handling, and valve oil seal replacement techniques. Turbocharger assembly procedures reference eye-bolt determination for oil feed hose orientation, lock plate installation for rotor shaft security, and swing valve controller inspection for diaphragm operation. Intake manifold disassembly documents fuel tube injector assembly handling, balance tube O-ring sizing and installation locations, and water bypass connector gasket application methods. Oil pan removal addresses seal cutter insertion points, liquid gasket application width specifications, and bolt tightening sequence protocols. Main bearing cap installation references crush height measurement and bearing engagement selection based on journal diameter grades.
Comprehensive Parameters
Inspection procedures specify measurement locations, standard values, and limit tolerances across engine components. Piston-to-cylinder bore clearance calculation references measured values from skirt outside diameter and cylinder inside diameter. Camshaft journal outside diameter inspection uses micrometer measurement across seven journal positions. Rotor shaft play measurement includes both axial and thrust clearance specifications. Compression pressure inspection documents standard and limit values at specified engine speeds. Torque specifications for connection rods include initial fastening torque and secondary angle wrench tightening—the manual documents torque specifications for connecting rod bolts to ensure proper fastening integrity.
Engineered Benchmarks
Crankshaft bearing selection tables correlate bearing grade numbers with thickness specifications and oil clearance values across multiple bearing thickness options. Main bearing thickness ranges from standard to five oversized classifications with corresponding identification colors. Service setting parts reference undersize bearing options at 0.12mm, 0.25mm intervals for precision journal correction. Piston selection tables correlate cylinder block bore grades with piston grades and available service piston types. Intake valve specifications document head diameter, stem diameter, seat angle geometry, and margin width reference data. Exhaust valve specifications include special handling procedures for sodium-filled valve disposal with neutralization process guidelines.
Core Parameters
Ignition timing inspection uses timing light connection to primary current detection terminals on No. 1 cylinder spark plug line. Idle speed adjustment operates through AAC valve assembly screw access—the documentation provides guidance on idle control modification procedures. Belt tension inspection measures deflection under specified force application at designated pulley positions. Valve clearance measurement employs dual feeler gauge methodology with calculation accounting for measurement surface geometry and gauge blade rigidity factors. Compression test procedure establishes specific sequence for spark plug removal and gauge installation at bore locations.
The manual documents torque specifications for the flywheel assembly to ensure secure rotor mounting during engine overhaul operations.
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