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File name alternator and regulator 2.pdf

ALTERNATOR & REGULATOR - MITSUBISHI 1993 Nissan Sentra 1993 ELECTRICAL Nissan Alternators & Regulators - Mitsubishi NX, Quest, Sentra, 240SX, 300ZX NOTE: If vehicle is equipped with Hitachi alternator, see ALTERNATOR & REGULATOR - HITACHI article in the ELECTRICAL section. DESCRIPTION Conventional 3-phase, self-rectifying Mitsubishi alternator contains 6 diodes (3 positive and 3 negative). Diodes rectify current. Regulator is inside alternator. ADJUSTMENTS BELT TENSION ALTERNATOR BELT ADJUSTMENT Application NX & Sentra 1.6L ... .28-.35 (7-9) 2.0L (With A/C) ... .28-.31 (7-8) 2.0L (Without A/C) ... .31-.35 (8-9) Quest ... .26-.29 (7.5-8.5) 240SX ... .28-.31 (7-8) 300ZX ... .28-.31 (7-8) (1) - Deflection is with 22 lbs. (10 kg) pressure applied midway on the longest belt run. NOTE: NOTE: Alternator Test 1) Turn ignition on. If charge indicator light on instrument panel comes on, go to step 3). 2) If light is off, disconnect alternator connector (terminals "L" and "S"). Ground terminal "L". If light comes on, repair or replace alternator and/or replace regulator. If light remains off, replace indicator bulb, reconnect alternator connector and retest. 3) Start and run engine at idle. If charge indicator light is ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў TROUBLE SHOOTING See TROUBLE SHOOTING - BASIC PROCEDURES article in GENERAL INFORMATION. (1) Deflection In. (mm) ON-VEHICLE TESTING Before testing, ensure alternator wire harness connections are secure, drive belt tension is okay and battery is fully charged. After starting engine, wait at least 30 seconds before measuring voltage. Terminals "B", "E", "L" and "S" are marked on the alternator's rear cover. dim, flickers or remains on (bright), repair or replace alternator. If light goes off, run engine at 1500 RPM with headlights on. If light comes on, repair or replace alternator. 4) If light remains off, measure voltage at terminal "B" with engine running at 1500 RPM. If more than 15.5 volts are present, replace regulator. If voltage is 13-15 volts, alternator and regulator are okay. Ensure alternator output amperage is as specified. See ALTERNATOR OUTPUT AMPERAGE SPECIFICATIONS table. ALTERNATOR OUTPUT AMPERAGE SPECIFICATIONS Application NX & Sentra ... 65 Quest ... 85 240SX ... 60 300ZX ... 65 @ 2500/90 Rotor Connect one ohmmeter lead to each rotor slip ring. If about 2-3