1986 Nissan-Datsun Truck PL720 Service Manual OEM
641 Pages • 13.13 MB • Instant, Printable PDF
Nissan Models Covered & Key Technical Specifications
Models: 1986 Nissan-Datsun Truck PL720
Sub-models / Variants: 2WD, Z20 Engine, Gasoline
Model Years: 1986
Technical Data:
- Engine: 2.0L SOHC L4
- Ignition Coil Primary Resistance (Early Type): 1.0–1.2 ohms
- Ignition Coil Secondary Resistance (Early Type): 7,300–11,000 ohms
- Ignition Coil Primary Resistance (Late Type): 0.8–1.0 ohms
- Ignition Coil Secondary Resistance (Late Type): 8,000–12,000 ohms
- Voltage Drop (Wire): < 0.001 volts
- Voltage Drop (Ground): Approx. 0.1 volts
- Voltage Drop (Switch Contacts): Approx. 0.3 volts
- Voltage Drop (Starter Solenoids): Approx. 0.5 volts
Nissan Manual Features & Content Preview
- Covers the 1986 Nissan-Datsun Truck PL720 equipped with the 2.0L SOHC Z20 engine, detailing ignition, fuel management, and emission controls.
- 95 pages of system-specific exploded views, electrical routing schematics, and sensor calibration charts.
- Features specific calibration values for the Z20 engine that are often missing from universal aftermarket guides.
- Derived from 1986 factory technical specifications (official ALLDATA 2009 publication).
Diagnostic and Emission System Overview
Getting a vintage Z-series engine running right requires exact numbers, not guesswork. This manual delivers in-depth technical descriptions and diagnostic logic for powertrain management systems, including the carbureted fuel-delivery circuit and spark timing controls. You get full-page wiring location diagrams and specific digital multimeter (DMM) testing procedures for ignition coils and sensor resistance. Whether you are tracing a parasitic draw or dialing in the detonation control unit, these diagrams cut down troubleshooting time. Always follow standard shop safety protocols, including proper battery isolation, before probing live electrical circuits or control modules.
Specification Highlights and Calibration Data
The documentation goes heavy on the hard numbers. It includes critical baseline data like a spark plug gap of 0.031–0.035 inches and primary ignition coil resistance of 1.0–1.2 ohms for early-type coils. Electrical troubleshooting is supported by exact voltage drop maximums, specifically the 0.1-volt limit for ground connections and 0.3 volts for switch contacts. You will also find specific voltage ranges for the detonation sensors and proper valve settings to correctly calibrate the Boost Controlled Deceleration Device (BCDD).
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