marki Posted August 11, 2015 Report Share Posted August 11, 2015 Hi. In my quest to fit a fuel pressure gauge in the cab I've got an electronic oil pressure gauge..but I need to connect the sender unit, I have a test point bit can anyone point me in the right direction for connecting the two together ? Images attached......TA again Mark Quote Link to post Share on other sites
mike barrett Posted August 11, 2015 Report Share Posted August 11, 2015 the T piece adapter has an unusual thread on it to connect to a pressure gauge, it has a blanking cap on it. however you can take the fitting with blanking cap off an fit an adapter to fit your pressure transducer. what thread does the transducer have on it? I might be able to help you with the adapter. This I what I did with mine. regards mike Quote Link to post Share on other sites
marki Posted August 11, 2015 Author Report Share Posted August 11, 2015 Hi Mike. I think it's 1/8 npt, does the test point come apart then ? Mark Quote Link to post Share on other sites
mike barrett Posted August 11, 2015 Report Share Posted August 11, 2015 yes. you can unscrew the adapter piece and then fit an adapter to fit your transducer, I will have a look at what I used on mine. will try to take a picture tomorrow and try to post it (about time I learnt how to past pictures to this forum...). regards mike Quote Link to post Share on other sites
marki Posted August 11, 2015 Author Report Share Posted August 11, 2015 Many thanks Mike, I'd appreciate that. Have you fitted a gauge ? Mark Quote Link to post Share on other sites
mike barrett Posted August 11, 2015 Report Share Posted August 11, 2015 yes. I found the pressure was at 90psi. Have adjusted it up and fitted a new supply cable to the pump. Now have 110psi (yes slightly high) even when starting the car. Make starting much easier. BTW the pressure is very constant even when pushing the car in third gear regards mike Quote Link to post Share on other sites
marki Posted August 12, 2015 Author Report Share Posted August 12, 2015 Hi Mike. What gauge did you use as I had issues finding one ? Mark Quote Link to post Share on other sites
mike barrett Posted August 12, 2015 Report Share Posted August 12, 2015 I used a 4-20mA loop powered digital display (left over from a work project) and a loop powered 4-20mA Pressure transducer. All a bit unusual but its what I often use at work... Basically you connect 12V to the transducer and then connect the display in series with the other transducer and the then to ground. The display is powered from the base loop current (4ma) and the transducer varies the loop current (4-20mA). I will try to find the details of the transducer and display if you want, I also need to find the thread details for the adapter as well.... cheers mike Quote Link to post Share on other sites
Alan Gill Posted August 13, 2015 Report Share Posted August 13, 2015 Me thinks a write-up in our magazine would be nice. Showing list of items needed, with part numbers and where to get. Plus installation details (wiring etc). Cheers ...> Alan Quote Link to post Share on other sites
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