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RHD Datsun 1200 was fitted with Mitsubishi or Hitachi alternator. North American models were equipped with a lightweight (8.4 pound) 35 AMP Hitachi alternator. These alternators will usually last 10-15 years or more than 100,000 miles before maintenance is required. The only normal maintenance is to replace the brushes when the dashboard alternator light starts flickering. The alternator uses an external Voltage regulator.
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Interchange
Strict interchange:
- Alternator (35 AMP model)
- 510 1968-early 1971 USA
- 521 1969-early 1971 USA
- 620 1973-1979 USA
Loose interchange: Many kinds of alternators. See Upgrade section below.
45A - looks very similar to B110 unit * Same black plastic brush cover grille * Bigger around * Datsun 240Z
Internally Regulated
Datsun 1200s from October 1981 came with a 35A alternator with integral regulator. It is a DIRECT BOLT-ON for the stock 1200 35A alternator, and requires a one-wire connection. You can unplug or discard any external voltage regulator.
See main article: LR135
Late 120Y Australian assembled have a Lucas single wire internally regulated alternator. Earlier 120Y have had an externally regulated alternator.
Lucas have one IND Plug and two + terminals.
Lucas 15AC
Mounting
Early A-series engines (1966-1973) mount the alternator down low on the left side of the engine, under the intake manifold as shown in this photo:
1974-up engines mount it high on the right side of the engine. For the A Engine Redesign, the alternator was moved to this position to make room for an Air conditioning pump or Smog pump.
Details
Early A-series mount details
Adjusting Bar B10, E10, B110, B120 early (A10 & A12) * 11715-18001 BAR-adjusting, alternator B10 * 11715-H2300 BAR-adjusting, alternator B110 (to '70-Aug.) [thin] * 11715-M0100 BAR-adjusting, alternator (from '70-Sept.) [thick] * 11715-M0110 BAR-adjusting, alternator (op.) E10 1974
Fixing Adjusting Bar ** 81-10816-1/08110-81610 BOLT, fixing adjusting bar ** 89-15138-1/08915-13810 WASHER-lock, fixing adjusting bar
V-Belt * 11720-18002 BELT-fan (L=838) B10 * 11720-27720 BELT-fan B10 (op.) Rally * 11720-18002 BELT-fan (L=838) B110 * 11720-25604 BELT-fan (L=856) E10 * 11720-18002 BELT-fan (L=838) E10 (from '72)
B10, B110, B120, E10 * 11710-H0100 BRACKET-alternator
B110/B120 - using studs in engine block ** 89-11208-1/08911-20810 NUT (2) ** 89-15438-1/08915-43810 WASHER-plain (2) E10 - using bolts into engine block ** 81-31022-1/08313-02210 BOLT, fixing bracket (2) ** 89-15140-1/08915-14010 WASHER-lock, fixing bracket (2)
B10 EARLY & OPTION * 11710-18000 BRACKET-alternator B10 (replaced by 11710-H0100) * 11710-27720 BRACKET-alternator (506W alternator) (op.) B10 Rally B10 used these to fix bracket to engine block: ** 89-11210-1 NUT, fixing alternator bracket (2) ** 89-15140-1 WASHER-lock, fixing alternator bracket (2) or ** 81-31022-1 NUT (2) ** 89-14140-1 WASHER-lock (2)
Fixing alternator to bracket B10 early ** 11711-18000 BOLT, fixing alternator to bracket ** 89-15140-1 WASHER-lock, fixing alternator to bracket B10 late ** 81-30830-1 BOLT (2) ** 89-11208-1 NUT (1) ** 89-15138-1 WASHER-spring lock (2) ** 89-15438-1 WASHER-plain (1)
B110 ** 81-31022-1/08131-02210 BOLT (1) [fixing alternator rear] ** 89-15140-1/08915-14010 WASHER-lock (2) ** 81-30830-1/08130-83010 BOLT (fixing alternator front) (1) ** 89-11208-1/08911-20810 NUT (1) ** 89-15138-1/08915-13810 WASHER-spring lock (2) ** 89-15438-1/08915-43810 WASHER-plain (1) E10 ** 81-30385-1/08130-83510 BOLT (fixing alternator rear) (1) ** 89-15138-1/08915-13810 WASHER-lock (2) ** 11713-M0100 NUT-stopper, alternator bracket
Details, Late
アルタネータ マウンテング
1974 and up 1200s
Adjusting Bar 11715-H6200 BAR-ADJUSTING, ALTERNATOR
Fixing Adjusting Bar 08120-82062 BOLT [engine end] 23164-H0100 BOLT [alternator end]
Bracket 11170-H6200 BRACKET-ALTERNATOR -7801 11170-H7401 BRACKET-ALTERNATOR 8110- * superseded 11170-H7400 BRACKET-ALTERNATOR 7802-8109
Fixing alternator to bracket 08915-43810 WASHER [plain] (2) 08915-13810 WASHER [lock] (2) 23100B 11915-U0105 BOLT (2) 23100F 11713-21000 SHIM T=0.3 (As Required) 11713-21001 SHIM T=0.2 (As Required) Fixing bracket to engine block 08131-03510 BOLT [rear] 08131-04210 BOLT [front] 08915-14010 WASHER (2)
V-Belt See Fan Belt
Wiring
See: Alternator Wiring article.
Testing
The alternator should output 13.5v to 15v at 1200 RPM. A voltmeter is the only tool needed for testing.
The charge lamp on the instrument panel should come on before the engine starts, and go off while the engine is running. If the CHG light does not come on with the key (before the engine starts), then the alternator will not charge -- so replace a burned-out bulb right away.
If your charging system is not working correctly, see Alternator diagnoses
Disassembly & Maintenance
Part Numbers
- 23100-U0100 Stock 35 amp Hitachi LT-135-13
- 23100-U0102 Hitachi LT-135-35B
- 23100-U0103 Hitachi LT-135-35C
- OE+ AL208 $18.04 USD
- BECK/ARNLEY 1860077 $35.79
- BOSCH AL231X,AL232X $50.79
B210 A13 engine 50 amp Hitachi LT-150
- 23100-P0101 ASSY-ALTERNATOR OP -0973
- 23100-H6203 ASSY-ALTERNATOR OP 1073-0874
- replaces 23100-P0101, 23100-H6200, 23100-H6201, 23100-H6202
B210 A14 engine 50 amp Hitachi LT-150
NOTE: Does Not fit A12 engine.
- Looks like stock 35A
- 23100-H7200 0974-0375
- 23100-H7201 0475-0975
- 23100-H7202 0575-0177
- 23100-H7203 0277-0777
- 23100-H7204 replaces H7200/01/02/03
- Bosch AL237X ['http://www.rockauto.com/catalog/x,carcode,1210813,parttype,2412,EPIsubcategory[97],Alternator,partGroup,18' $75.79 RockAuto.com]
Mid-model
オルタネータ
23100-U0113 8102-8109 Mitsubishi 12V-35A 23100-U0112 7804-8101 Mitsubishi 12V-35A * 23100-U0110 -7511 Mitsubishi 35A AG203 * 23100-U0111 7512-7803 Mitsubishi 35A AH203
Late Model
See main article: LR135
Brushes
Hitachi LT
- Nissan 1970-1978
- Subaru 1977-1978
- Isuzu (Chevrolet) 1975-1987
B110
- 23133-H0300 ASSY-HOLDER,BRUSH $5.95
-
Brush Assembly with cover
- 23133-U0101 ASSY-BRUSH B210 -0874 $10.97
- replaces 23133-U0100
- 23133-P0100 ASSY-BRUSH B210 0974 $12.19
- Niehof WA560 $9.99
- Fits
- Mazda 1986 323
- Mazda 1986-1987 B2000
- Mazda 1981-1986 626
- Mazda 1981-1985 GLC
- Mazda 1981-1984 B2000
- Datsun 1970-1973 240Z
- Datsun 1974 260Z
- Datsun 1973-1976 610
- Datsun 1974-1977 710
- Datsun 1980-1981 810
- Datsun 1975-1977 B210
- Datsun 1975-1977 620
- Datsun 1976-1977 F10
- Datsun 1973-1974 620 PICKUP
Brush Assembly
- 23135-H0300- F B110, B210 A13 $5.95
- 23135-H0301- E B110, B210 A13
Brushes, requires soldering
- STANDARD MOTOR PRODUCTS Part # JX107 $2.79
Regulator
B110 uses an external voltage regulator. It uses a connector with spade terminals, and so is different from B210 which uses round pins. It controls the alternator output to between 13.5-15.0 volts.
See main article: Voltage regulator
Upgrades
If you are running high-power headlights, off-road lighting systems, or high-power stereo gear, using a high output alternator is called for. Or, if you need to replace the 1200 alternator and have free or inexpensive access to different alternators, you might consider a swap. Lastly you might have a bad Voltage regulator, and by swapping to an internally-regulated alternator reliability increases since these use a solid-state (no moving parts) regulator.
See main article: Alternator Upgrades