Oil pressure sensor

Post by **RandomHero** » 23 Aug 2005 10:23 am

I am looking for the place where the sensor for the oilpressure- and oil temperaturegauge fits into the engine.

Who can tell me?

Post by **5lab** » 23 Aug 2005 12:35 pm

oil temperature goes in the sump plug, oil pressure goes in where the current oil pressure switch is

Post by **RandomHero** » 23 Aug 2005 01:49 pm

I believe the sensor i have is both the temperature and pressure sensor. If this is possible, where should it go?

Post by **Chris_C** » 23 Aug 2005 10:20 pm

It's probably not both temp and pressure, but pressure for the gauge, and pressure for the oil light on your dash board. Can you get a part no or a piccy???

Post by **RandomHero** » 24 Aug 2005 12:43 pm

Here's a pic:

The label says; oilpresssure sender, temp. transm. It's part numer; 5-70-241407 The sensor itself is from VDO.

Post by **5lab** » 24 Aug 2005 01:30 pm

dont see how it can do both with only 2 lines into it - one power and one signal surely?

Post by **RandomHero** » 24 Aug 2005 01:40 pm

Yep, the gauges i got were also in Volvo boxes, but were actually DAF gauges. So i quess this is just like with the gauges not the original box

An uncle of mine said it was possible that it it was both pressure and temp. sender, but i don't think that is posible either with only 2 lines coming out. It could be that the sensor itself acts as the ground, and that there are 2 lines, one for pressure and one for temp.

Post by **Hans Wors** » 24 Aug 2005 01:50 pm

I've got the same sensor and it can only be used for pressure (gauge and warninglight). I can send you the original instructions if you want to?

I use a different sensor to measure the oiltemperature. It is integrated in the oil gauging rod.

Post by **Fuse** » 24 Aug 2005 02:22 pm

Any idea where I could get that original sensor and a Volvo pressure gauge? I need a pressure gauge and all aftermarket gauges need a T-splitter for it's own sensor I think and I already have one because turbo gets it's oil feed from the original pressure light sensor. There's a banjo fitting and original warning light sensor is connected to that and from the banjo fitting goes an oil line to turbo. So it would be better I would only have one sensor in which you can connect the original light and the gauge. Or if someone can name some other pressure gauge which has a sensor which works with original light too. I don't wan't too many splitters in my oil lines..

Post by **5lab** » 24 Aug 2005 05:35 pm

vdo still sell them. james has part numbers

Post by **Chris_C** » 24 Aug 2005 11:37 pm

Right, it loos like it is a common ground (i.e. gets a ground via the block) pressure sender, which has a G (gauge) line and a WS (I think....) warning signal... To definately confirm, read what info is stamped on the nuts flats on the gauge, if it says something like 5bar, 0.5bar sw, and nothing that looks like a temp reading (150degC or similar) it's definately just a pressure.

Fuse, there are loads of senders on ebay.. you just need to get the right thread, resistance and pressure limits. All VDO pressure senders I have seen incorperate the warning lamp signal line, make sure you get one that switches at the correct (0.5bar) pressure. So for a 5bar gauge you'd want a sender that had M14x1.5 thread (for a B14.... I think this is true for a redblock, but check) 5 bar limits (for a volvo 5bar gauge) over 180ohms (again... check this, I used Porsche gauges, but I think they are the same, just different faces), 0.5bar warning switch. Other than that, the options on common/separate earth and terminal type are down to what makes life easy for you, or what you can get cheapest