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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
Specifications
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.
Buy at RockAuto.com
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
Datsuns came with a pressure gauge, and used this type of large-diameter sender:2
25070-89901/25070-89902 for 90psi gauge. Switch at 6kg
Used by B210 factory option gauge, and all 240Z except very early ones.
25070-89910 for use with 140psi gauge. Switch at 10kg. Looks visually identical to 89901
Buy at Rocuto.com
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
Standard Motor Products PS120 * button terminal
25240-89915 <> 25420-89920 <> 25420-89960* 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
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.
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
New Method - flexible hose connnected to pump
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