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[Datsun 1200 encyclopedia]

B10 Alternator

From Datsun 1200 Club

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Categories: Datsun B10 | Charging System

Datsun 1000 uses the early Datsun alternator, A Mitsubishi or Hitachi unit with a four-spade rectangular connector. It was available in 25A or 30A versions. This is the same alternator as used by Datsun 411 and early Datsun 510. It is the same diameter as the more modern Datsun 1200 and 510 35A alternator.

Contents

Overview

24376.jpgAlbum click to view

Hitachi LT125-02 AC300/12WR 250W output @ 12V

Uses Voltage Regulator TL1Z-10A (Tirrill leaf-spring type with 3-point constant voltage relay and pilot lamp relay)

Part Numbers

B10 Datsun 1000 Hitachi
23100-18001 LT125-D2
* same as 520 J13 engine certain version 
23100-18005 LT125-D2 (ISO)
23100-H0100 LT125-06 from 1969
23100-H0300 LT125-06 from 1969 Coupe
23100-A4600 LT130-65 (op.) Van, T
* same as 510 certain version
23100-A4601 LT130-65 (op.) Coupe
B10 Datsun 1000 Mitsubishi single-lug
23100-18010 214-886
23100-18015 214-886 (ISO)
B10 Datsun 1000 Mitsubishi two-lug
23100-H0110 AF2025A
23100-H0110 AF2030A5 (op.) (exc. Coupe)
23100-H0110 AF2030A6 (op.) Coupe
BRACKET-alternator
11710-18000 <x> 11710-H0100
11710-H0100 
11710-27720 506W alternator (op.) Rally

Wiring

See Basic_Alternator_Wiring#1960s_Alternator

Also see wiring diagram on Datsun100.com

Early 510

510_4-wire.jpg

BW 
GR
RL
GB
Datsun 510 JDM (3-lug mounting)
1967-1970
23100-21000 LT130-41 Hitachi
23100-21005 LT130-41 Hitachi (ISO)
23100-21600 LT140-66 Hitachi (op.)
23100-21605 LT140-66 Hitachi (op.) (ISO)
23100-A4800 LT140-53 Hitachi PP, PY
23100-21005 LT130-41K Hitachi P510
23100-A4600 LT130-65 Hitachi
* SAME AS LATE DATSUN 1000
23100-A4601 LT130-72 Hitachi 
23100-21010 12V-30A Mitsubishi
23100-21015 12V-30A Mitsubishi (ISO)
23100-A4610 12V-30A, AG2030A Mitsubishi 
23100-A4611 12V-30A, AG2030A Mitsubishi 
23100-21615 214-028, 40A Mitsubishi PP,PY
23100-A4810 AG2040A Mitsubishi PP,PY

410

NOTE: Positive Ground, so will not work on the 411
Datsun 410 JDM (3-lug mounting)
23100-61200 12V-300W Mitsubishi
 * 23230-12210 ASS'Y-DIODE SET
23100-10600 12V-300W Hitachi
  * 23230-61200 ASS'Y-DIODE SET
23100-10601 12V-300W Hitachi

411

2-ear, NEGATIVE GROUND
23100-16512 from E# 23488
23100-16510
W
W
WB
B

Roadster

SR (U20 engine) seems to have single-lug mounting
22177-25502 SR
23100-20111 12V-30A
SP (R16 engine) has three-ear mounting
22177-10810 SP
23100-14602 SP 1968
23100-12200 SP early
22177-10400 SP early

520

520 JDM J13
23168-10600 BRACKET 
 23100-14802 25A HITACHI 1965
11711-13201 BRACKET 
 23100-18000 HITACHI (from '66,4)
 23100-16700 HITACHI (from C # 520-095001)
 23100-18010 MITSUBISHI AS2025A1 (from '66,4) 
 23100-16710 MITSUBISHI 30A (from C # 520-095001)

Variations

The alternators themselves appear to have no part numbers on them, but possibly they have faded with time.

Mitsubishi 4-wire 3-ear alternator
20110907141027DSC05211.jpg 20110907141038DSC05212.jpg 20110907141052DSC05213.jpg

Mitsubishi-Prestolite, 82mm between ears
20120523025117DSC07555.jpg

Datsun Roadster Hitachi 4-wire, 3-ear alternator, 98mm between ears
20120523025255DSC07564.jpg 20120523025234DSC07562.jpg 20120523025245DSC07563.jpg

Mounting

1000 alternator has one-lug lower boss (early 1000)
1000 alternator has two lower ears (later 1000)
1200 alternator has two lower ears

Early (1000) alternator versus Datsun 1200 alternator.
24377.jpgAlbum click to view

Same front mounting face
Same diameter fan pully
early 1000 Bottom mounting lugs differ 
later 1000 same mounting lugs

Other Mounting

With some units, using a longer bolt and a spacer is needed as on this R16 engine:
alternator_side.jpg

Or this bracket, for 3-ear alternator being used with 2-ear alternator (note the triangle plate on the timing cover):
alt_mounts.jpg

1966 roadster (1600?)
1996_roaster_alternator.jpg

Positive Ground

1964 & 1965 Datsuns used positive earth alternators

  • All Datsun 1500 Roadsters (SPL310) used positive ground. Alternators were used 1964-1965 (1962-1963 used a generator).
  • Datsun 410 had positive ground alternators (1964 & 1965). The Datsun 411 (1966-1967) went to the modern negative ground. 

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This page has been accessed 12,247 times. This page was last modified 07:32, 17 September 2017. Content is available under Datsun 1200 Club.