1986 Nissan 200SX Factory Service & Repair Manual (P/N SM6E-0S12U0)

• Covers 1986 Nissan 200SX S12 hatchback and coupe configurations, including GL and SGL trims, in a 784-page PDF of Nissan publication SM6E-0S12U0.
• Engine repair coverage includes removal, cylinder-head and cylinder-block overhaul, timing belt installation, compression testing, and valve-clearance adjustment.
• Separate CA20E E.F.I. and CA18ET E.C.C.S. sections provide ECU self-diagnosis, sensor and injector checks, fuel-pressure testing, and turbocharger fault diagnosis.
• Details FS5W71B manual transmission disassembly and synchronizer inspection, plus L4N71B automatic transmission overhaul, hydraulic tests, and lock-up/overdrive diagnosis.
• R180 and R200 differential procedures cover pinion-height selection, bearing preload, backlash adjustment, and gear-tooth contact checks.
• Chassis procedures address front struts, rear axle bearings and driveshaft joints, disc-brake caliper repair, hydraulic bleeding, and manual or power steering gear service.
• Electrical coverage extends to digital-instrument self-checks, retractable-headlamp troubleshooting, theft-warning diagnosis, and the Digital Touch Entry System.

Engine and Chassis Documentation

The model tables distinguish U.S. California, non-California, and Canadian configurations. CA18ET turbo SGL hatchbacks are listed with the FS5W71B and R200; CA20E applications use the R180, with manual or L4N71B automatic transmission configurations identified by model code.

Engine mechanical coverage goes beyond routine maintenance into valve guides and seats, camshaft inspection, piston rings, crankshaft journals, and bearing selection. The manual outlines maintenance schedules for the cooling system, spark plugs, and air cleaner, with separate lubrication and cooling sections for oil-pressure checks, thermostat inspection, and radiator leak testing.

Its timing belt cautions identify the risk of valve-to-piston contact when the camshaft and crankshaft are turned independently with the belt removed.

Brake repair sections distinguish AD22V front and CL11H rear calipers and address rotor inspection, booster testing, and parking-brake adjustment. Steering coverage includes VR24S manual and PR24SA power racks, along with pump inspection and pressure testing. Alignment information distinguishes toe adjustment from factory-set front camber and caster. Nissan also warns that overtightening the front wheel-bearing nut can cause bearing seizure.

Working on these classic powerplants requires strict adherence to factory safety protocols and proper lifting procedures to prevent injury or component damage.

Fuel Control and Drivetrain Diagnosis

The E.F.I. Wiring Diagram—CA20E Engine and E.C.C.S. Wiring Diagram—CA18ET Engine accompany engine-specific electrical checks. Startability and driveability charts connect symptoms to ignition, airflow, fuel delivery, and feedback-system tests. Emissions coverage addresses EGR, crankcase ventilation, and evaporative controls.

Turbocharger coverage includes low-power and excessive-boost diagnosis, bypass-actuator testing, and removal and installation. The procedure calls for assembly replacement when the unit is faulty; internal cartridge overhaul is outside its scope.

For automatic transmission work, Hydraulic Control Circuits diagrams support road-test, line-pressure, and stall-test analysis. Internal service addresses the valve body, clutch packs, band servo, and planetary assemblies. Differential Tooth Contact illustrations accompany the separate carrier adjustment procedures.

Electrical, Body, and Climate-Control Systems

Digital-cluster diagnosis separates the control, power, and display units through segment, pre-programmed-signal, and display-unit checks. Nissan identifies diagnostic sub-harness KV999U0010 (J34273) for this work. Other electrical repair sections cover the voice-warning system, rain-sensitive auto wipers, and Automatic Speed Control Device (A.S.C.D.). The Super Multiple Junction (S.M.J.) Terminal Arrangement and harness layouts support connector-level circuit tracing.

Body documentation includes door and window mechanisms, windshield and window-glass installation, and hatchback manual versus coupe electric sunroof service. Body Alignment drawings provide engine-compartment and underbody measuring points. Heater controls and the original R-12 air-conditioning system have their own diagnosis and service procedures, including performance testing and Hitachi MJS170 compressor service.

Technical Specifications Reference

Torque tables cover standard bolts and engine fasteners, including rocker adjusting nuts. Reference data also include cooling-system and differential capacities, wear limits, bearing and gear clearances, and electrical test values.

Scan Coverage

Scan limitation: This is not a complete page-for-page scan. Pagination gaps include MA-39, EM-19, EF&EC-9, BF-6, EL-21, and EL-189. The fuel/emissions Service Data and Specifications section listed from EF&EC-101 is also absent.