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| Many different Datsun alternators and alternators from other makes can easily be fitted to the Datsun 1200. 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. | Many different Datsun alternators and alternators from other makes can easily be fitted to the Datsun 1200. 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. | ||
| + | = Overview = | ||
| There are two major considerations in a swap: | There are two major considerations in a swap: | ||
| * Physical swap. How does it bolt to the A12 engine? | * Physical swap. How does it bolt to the A12 engine? | ||
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| * Distance between Adjustment bolt and mount bolt: 156mm | * Distance between Adjustment bolt and mount bolt: 156mm | ||
| * 10.5mm diameter mount holes | * 10.5mm diameter mount holes | ||
| - | * Diameter of body: ? | + | * Diameter of body: 114mm (4.5") |
| * Fan belt center: 29mm from front bolt face | * Fan belt center: 29mm from front bolt face | ||
| * Pulley diameter: 69mm | * Pulley diameter: 69mm | ||
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| = Hitachi LT-150 = | = Hitachi LT-150 = | ||
| - | Hitachi LT-150 looks like it will bolt right in place of stock LT-135. | + | Hitachi LT-150 looks like it will bolt right in place of stock LT-135 -- but the alternator rubs against the lower radiator hose. It could be made to work, but is not recommended. |
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| * 9.6 pounds: [http://www.rockauto.com/catalog/raframecatalog.php?catalog=23&partnum=AL237X&a=FR23-AL237X Bosch AL237X] 50A 1974-1978 | * 9.6 pounds: [http://www.rockauto.com/catalog/raframecatalog.php?catalog=23&partnum=AL237X&a=FR23-AL237X Bosch AL237X] 50A 1974-1978 | ||
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| * DATSUN F10 (1976 - 1978) | * DATSUN F10 (1976 - 1978) | ||
| * Fits same as Bosch #AL241X 60AMP | * Fits same as Bosch #AL241X 60AMP | ||
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| == Sunny Truck == | == Sunny Truck == | ||
| - | 23100-B9810 Mitsubishi A1T22971, 35A internally regulated is a direct physical replacement for the original (small) B110 alternator. It is wired differently however. | + | Nissan 23100-B9810 (Mitsubishi A1T22971/Hitachi LR135), 35A internally regulated is a direct physical replacement for the original (small) B110 alternator. It even will use the same fan pulley belt. It is wired differently however (see [[Hitachi_LR_Alternator#Wiring|Hitachi LR Alternator Wiring]]). |
| [http://datsun1200.com/modules/myalbum/photo.php?lid=21283 http://datsun1200.com/uploads/thumbs/21283.jpg] | [http://datsun1200.com/modules/myalbum/photo.php?lid=21283 http://datsun1200.com/uploads/thumbs/21283.jpg] | ||
Revision as of 03:57, 30 August 2010
Many different Datsun alternators and alternators from other makes can easily be fitted to the Datsun 1200. 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.
Contents |
Overview
There are two major considerations in a swap:
- Physical swap. How does it bolt to the A12 engine?
- Electrical swap. How will the new alternator be connected to the wiring?
Physical Specifications
Alternator Comparison & swap info
Stock Hitachi LT-135 35A
- Weight: 8.4 pounds with pulley
- Front flange (bolt ears): 13mm thick
- Distance between engine-side mounting ears: 80mm
- Distance between Adjustment bolt and mount bolt: 156mm
- 10.5mm diameter mount holes
- Diameter of body: 114mm (4.5")
- Fan belt center: 29mm from front bolt face
- Pulley diameter: 69mm
- Adjustment bolt: Flange threaded for M8x1.25 bolt
Electrical Connector
Datsun 1200 uses the typical 1970s Hitachi T-shaped connector:
- Field
- Nuetral point
Other alternators use different connectors. Since the LT-135 uses spade connectors, wiring should be pretty simple.
Hitachi LT-150
Hitachi LT-150 looks like it will bolt right in place of stock LT-135 -- but the alternator rubs against the lower radiator hose. It could be made to work, but is not recommended.
- 9.6 pounds: Bosch AL237X 50A 1974-1978
Hitachi 50 Amp (Bosch AL237X)
- CHEVROLET LUV PICKUP (1981 - 1982)
- ISUZU PICKUP (1981 - 1986)
- ISUZU PICKUP NORMAL CAB 1987
- ISUZU TROOPER (1984 - 1985)
- DATSUN 200SX 1977
- DATSUN 610 (1974 - 1976)
- DATSUN 710 (1975 - 1977)
- DATSUN B210 (1975 - 1977)
- DATSUN F10 (1976 - 1978)
- Fits same as Bosch #AL241X 60AMP
Internal Regulator Alternator
Sunny Truck
Nissan 23100-B9810 (Mitsubishi A1T22971/Hitachi LR135), 35A internally regulated is a direct physical replacement for the original (small) B110 alternator. It even will use the same fan pulley belt. It is wired differently however (see Hitachi LR Alternator Wiring).
Nissan 23100-B8910
Mitsubishi Electric Corporation A1T22971
12V 35A 1X23
LS wiring (see Hitachi LR Alternator Wiring)
CAUTION: T-connector is LS wired, not FN wired
Also see Alternator Part Numbers
keywords: dynamo, generator, ダイナモ
Hitachi LR
Newer Datsuns from about 1978 came with an alternator with internal-regulator, the LR150/LR160, including fitment on newer A-series engines.
See main article: Hitachi LR Alternator
More Swaps
-
Ford Falcon EA Alternator. Also see: EA falcon mounting diagram
-
Bosch of Australia internal-regulated Alternator
- Chrysler alternator upgrade on Yahoo! Clubs Datsun 210
Hardware
-
Alternator tension rod makes adjustments easy