Any ideas as to what this is??

that makes it an oil pressure switch set at about 8psi.

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Originally Posted by JDNSW

More likely it is the sender for an electric pressure gauge, although it does not look exactly the same as the ones shown in the parts book - 555704 or DRC242 after 1976, although it could under the rubber cover, which is not shown.

John

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Take a bow John, I believe the prize? is yours:).

does anyone have any rubber covers they don't want?

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Originally Posted by JDNSW

I doubt if it an oil temperature sender - it is not in circulating oil, and in any case does not look like the ones in the optional equipment parts book. More likely it is the sender for an electric pressure gauge, although it does not look exactly the same as the ones shown in the parts book - 555704 or DRC242 after 1976, although it could under the rubber cover, which is not shown.

John

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John, the 3 bearing engine I got off you has the same sender unit complete with the wiring, it has a long green wire with a Black plastic spade (female) fitting, the other wire is thicker and is either black or brown, hard to tell in torchlight, is not as long as the green wire and has a red (female) bullet type connector. You mat be able to trace where they go to on the car, if you still have it, hope your getting some rain, we are getting bucket loads, Regards Frank.

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Originally Posted by Dinty

G'day All, I'm at a total loss as to a particular part on a Series 3 diesel engine. It is situated down on the engine oil filter assy, the same block has a oil pressure warning light, electric oil pressure sensor and this other thing with 2 wires coming out of the top. It is approx 40mm in dia and roughly the same in depth, it must have engine going into it because it's on the same gallery, I will post a pic to Phoenix and hopefully he will put it up so as to help with it's id and what function it does, as at present my electric oil pressure gauge won't work on the engine, but put it across a battery and it works, the engine is a 5 main bearing diesel, anyway cheers Dennis:wasntme:
PS Does anyone have a circuit diagram for a late model Series 3 Diesel that will show how the electric oil pressure gauge is wired in??

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I have one the same on an engine I got off JDNSW (John), it is I believe an 80/81 3 bearing motor, I have posted to John the details of the wiring, he may be able to trace the wiring back, if he still has the car. BTW you dont have a 5 bearing Block and Crank you might want to sell, do you, Regards Frank.

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Originally Posted by Tank

I have one the same on an engine I got off JDNSW (John), it is I believe an 80/81 3 bearing motor, I have posted to John the details of the wiring, he may be able to trace the wiring back, if he still has the car. BTW you dont have a 5 bearing Block and Crank you might want to sell, do you, Regards Frank.

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I have a wiring diagram in the owner's manual - I will post it later today after I get the kids off to school.

John

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Originally Posted by JDNSW

I have a wiring diagram in the owner's manual - I will post it later today after I get the kids off to school.

John

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I had a look at it before scanning it - electric pressure gauge is not on it, but if it follows normal LR wiring practice the black wire will be earth, and the other will go to the gauge, which will be fed by either a light green wire from the voltage stabiliser on the back of the speedo or a green wire from terminal 8 on the fuse box.

Hope this helps, and if anyone wants the wiring diagram from the owner's manual, let me know.

John

G'day All, Well apparently the gizmo is a cut out switch, pecuilar to Diesel's only. It is in the circuit for the reverse lights, and it works on Oil pressure, if the engine is running and you select reverse gear the light will work (or should), if you stop the engine and leave it in reverse with the ignition ON the reverse light will not be on, I had this in the back of my mind and it was moved forward by Diana's comment re Leyland Boxer etc, anyway thats what it is, but that still doesn't help my problem with my Electric Oil pressure gauge LOL, maybe that sensor is U/S, anyway thanks for all the responses, cheers Dennis:wasntme::angel:

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Originally Posted by Dinty

G'day All, Well apparently the gizmo is a cut out switch, pecuilar to Diesel's only. It is in the circuit for the reverse lights, and it works on Oil pressure, if the engine is running and you select reverse gear the light will work (or should), if you stop the engine and leave it in reverse with the ignition ON the reverse light will not be on, I had this in the back of my mind and it was moved forward by Diana's comment re Leyland Boxer etc, anyway thats what it is, but that still doesn't help my problem with my Electric Oil pressure gauge LOL, maybe that sensor is U/S, anyway thanks for all the responses, cheers Dennis:wasntme::angel:

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Well, well, - one of the differences between the UK and Australian setups for my diesel County is the oil pressure switch on the reversing light. This is apparently an Australian requirement that is triggered because there is no accessory position on the County ignition switch. (to prevent the reversing light being on when you are just sitting with the engine stopped listening to the radio, I suppose)

John

G'day All, John just to confuse the issue even further, my 110 County is a 11/84 job and was one of the press release vehicles for the 110 County with the Isuzu engine, no heres the odd bit, the original ign switch had an acc/position because when it came to Oz as a CKD it was originally a V8 chassis, anyway cheers Dennis:wasntme: