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[Datsun 1200 encyclopedia]

Oil Pressure Sender

From Datsun 1200 Club

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Category: Engine Lubrication System

Datsun 1200 used a simple on/off switch for an Oil Pressure Sender, to operate a so-called "idiot light" on the dash.

Contents

Overview

27017.jpgAlbum click to view 27746.jpgAlbum click to view

Specifications

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Thread Size - 1/8" x 28 British Standard Pipe Taper (BSPT)
Terminal Type: Bullet, Male
Operating Pressure - PSI: 3 - 9 psi

Wiring

1200 uses an "idiot light" (pilot lamp on the dash) to warn if oil pressure has dropped.

Part Numbers

Nissan part number
25240-89910 SWITCH ASSY-OIL PRESSURE $17 USD
* 6 psi 3
See Switch Part Numbers
Aftermarket Oil Pressure Light Switch
Airtex/Wells 1S6539
AdvanTech 2G8
Standard Motor Products PS-171/PS171T
AC/Delco E1802
Beck/Arnley 201-0262

Interchange

The stock Datsun 1200 oil pressure switch fits A-series and some L-series, Z-series, E-series, Diesel and CA-series engines. Also fits certain GM, IHC and Isuzu engines.

Datsun 1200 sender uses bullet connector.
2G8.jpg

2G8_3.jpg

Buy at RockAuto.com
th_2G8.jpg
NOTE: Some other Datsun senders use a spade connector or a screw connector

Nissan 25240-89902, 25240-89910
GM 94118755, 94312940
IHC 478097-C1
Isuzu 8-94118-755-0, 8-94312-940-0
Beck/Arnley 201-0262
* Geo 1985-1991
* Honda 1986-2009
* Isuzu 1985-2004
* Mazda RX2 1971-1973
* Datsun B110/B210/B310
* Datsun F10/N10
* Datsun 411/510/610/810/910
* Datsun 710
* Datsun pickup 520/521/620/720
* Nissan Micra 1984-1999
* Nissan Pulsar 1982-1984
* Nissan B11 1983-1985
* Nissan Stanza T11 1983-1986
* Mazda 081318501
* Repco/Altrom 143.1000
* Nissan 25240-89902,25240-89910
* Honda 37240P2FA01,37240PD2003,37240PD2004,37240PT0003
* Honda 37240PT0004, 37240PT0013, 37240PT0014, 37240PT0023
* Isuzu 5-86202-832-0,8-94118-755-0,8-94312-940-0

For Pressure Gauge

Other Datsuns came with a pressure gauge, and used this switch:

Buy at RockAuto.com
th_1S6571.jpg
Datsun 720 Pickup

Nissan 25250-S6001, 25070-P8000, 25070-80W00
Standard Motor Products PS173
Airtex/Wells 1S6571
Beck/Arnley 2011129  
Thread Size 1/8-28 ISO Tapered Thread
* 2 male blade terminals
Switch to close at 3-10 PSI
0-2 PSI - 75 Ohms min
5.5 PSI - 44-60 Ohms
30 PSI - 27-41 Ohms
80 PSI - 7-20 Ohms

Others

Standard Motor Products PS15/PS160
* male blade terminal
  th_PS160.jpg
Standard Motor Products PS120
* button terminal
  th_PS120.jpg
25240-89915 <> 25420-89920 <> 25420-89960
th_1S6571.jpg
* Nissan 720 1985-up diesel
* 720,B11/B12,N12/N13,GC22,M10,T12,D21,WD21
* 720,B11/B12,N12/N13,GC22,J30,M10/M11,S13/S14/,U13U,V40/V41,T12,A32B/A33B,B14U/B14X/B15U,D21/WD21/WD22,L30,R50
* D22/WD22,Z50,A33B/A34,B15U,L31,R50,V41
* Single made blade
* Rectangle connector, female
* Standard Motor Products PS168

Mechanical Oil Pressure Gauge

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When fitting a Gauge to the A-series, you should know that the oil pressure switch threads are 1/8 BSPT (british standard pipe tapered). It screws directly into the oil pump housing.

CAUTION: Many gauge kits use Standard threads. Use an adapter fitting for BSPT threads.

27746.jpgAlbum click to view ghgh0058kc.jpg

If you instead use a Tee connector, you can fit both the sensor and a separate gauage. Tees are available in the usual auto supply stores such as Repco or Oreilly's.

[Old Method, no longer recommended]
Tee fitted to oil pump | Tee and oil cooler hoses
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New Method - flexible hose connnected to pump
21581.jpgAlbum click to view

A word of caution with Tee-d sensors: they tend to break, perhaps due the weight of the sender at the end of the tee piece and the vibration of the engine. The solution is to use a braided hose from the oil sender hole out to the bodywork, and then mounted the tee with senders in place.


Datsun Nationals 2005 .. I think 3 different cars had their brass t-piece fail resulting in oil all over wakefield track. Definitely mount the brass fitting on the bodywork, not the engine. POST dattodude
 

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This page has been accessed 6,185 times. This page was last modified 07:30, 9 October 2019. Content is available under Datsun 1200 Club.