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[Datsun 1200 encyclopedia]

Thermal transmitter

Revision as of 18:56, 24 September 2018; view current revision
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Category: Wiring

The temperature sender is called the thermal transmitter by Datsun. a.k.a. temp sensor. If varies resistance according to temperature, thus causing the Temperature Gauge to display the correct temperature.

Contents

Overview

Early: Bullet connector type 1970-1981
Late:  Spade connector type 1982-

Transmitter at right front corner of head
24849a.jpgAlbum click to view 12054.jpgAlbum click to view

Transmitter is at very front of right side, pointing up> it has a threaded collar nut to hold it in.
8122.jpgAlbum click to view 15003.jpgAlbum click to view

Early Type

Switch for Temperature Gauge (thermal transmitter)
Nissan 25080-89900 GAUGE-TEMP ENGINE UNIT
*  Rockauto.com
* BECK/ARNLEY 2010247 $8.16
* Airtex 1T1181 
* STANDARD MOTOR PRODUCTS TS69
* ACDELCO E8041, 19107020
25080-89900.jpg
Most 1970s Datsuns
* M16 X 1.50 metric threads

25251-30100 NUT [Threads for engine unit] is required. You can re-use your old one.
25080-89900-1.jpg 25080-89900-1-1.jpg

25080-89902 and some aftermarket have integral threads, such as this Airtex T1181:
T1181.jpg
RockAuto.com

Interchange
1971-1973 1200
1973-1976 610
1968-1970 1600 Roadster
1975-1979 620 
1968-1970 2000 Roadster
1972-1974 620Pickup
1977-1983 200SX
1974-1977 710
1987-1988 200SX
1980-1985 720
1979-1982 210
1977-1979 810
1970-1973 240Z
1981 810
1974-1975 260Z
1974-1978 B210
1975-1978 280Z
1986 D21 Pickup
1979-1983 280ZX
1976-1978 F10
1980-1982 310
1982-1983 Maxima
1968-1973 510
1983-1986 PulsarNX
1978-1981 510
1983 Sentra
1968 520 Pickup
1982-1986 Stanza
1969-1972 521 Pickup
25080-89900 GAUGE-TEMP ENGINE UNIT
* 720 with Z20/Z22/Z24 engines
* 910 with L24 engine
* B11 with E15/E16 engine
* N10 Pulsar with A14/A15/E15 engines
* N12 Pulsar with E15ET engine
* S110 Z20E/Z22E
* S12 CA18ET/CA20E
* T11 CA20S/CA20E

Beck/Arnley 2010247 Water Temperature Switch $17.49 at schucks.com
Standard Motor Products TS69 Engine Coolant Temperature Sender 

f61657915kojiya_2006-img600x321-118.jpg

f61657915kojiya_2006-img600x373-118.jpg

Late Type

25080-89912 A-series 8202-
2508089902 Subaru
25080-89902 Nissan
* M16 x 1.5 threads
* 17 mm hex
Most 1980s Nissan (spade connector type)
25080-89912.jpg

Other Nissan Types

non-1200 thermal transmitters include:

25080-89900 two-piece, 4mm diameter bullet type
25080-89901
25080-89902 M16 large type, one piece
25080-89903 M12 small type
25080-89905 for digital meter, spade, M16 x 1.5
25080-89912 spade type
25080-62200 nut type
* Sankei KW-2N
25080-62200.jpg

25080-62200 nut type - Datsun B10
25080-62200.jpg

Wiring

Troubleshooting

Nissan Electrical

From the 1973 Datsun 1200 Factory Service Manual.

Ohms  Temp
100   50C (122F)