elbow for oil press switch

[JDA_BTR]

There are plenty of reasons to want it....
But is that elbow the one I want?

I did like the spacers idea. but then its hard to get under/behind the switch for connections.

[rapid_ascent]

I don't think that elbow is going to space the switch far enough away from the pressure transducer. I think you need a nipple and a female elbow., but I don't have the parts yet to confirm.

[rapid_ascent]

A little too much time commuting on the train I guess to think about future steps. I realize this is slightly off topic, but not too far.

Do these transducer lines that are connected to the manifold need to be purged to get rid of the air? It seems like they should be, but then I was wondering how that was done if you need to put the plug into the manifold with thread sealant.

[gasman]

Originally Posted by rapid_ascent

A little too much time commuting on the train I guess to think about future steps. I realize this is slightly off topic, but not too far.

Do these transducer lines that are connected to the manifold need to be purged to get rid of the air? It seems like they should be, but then I was wondering how that was done if you need to put the plug into the manifold with thread sealant.

Good question..... Pressure is pressure.. It doesn't matter if it's water, gas, oil or air. They do make the transducers compatible with the product being measured. But an oil pressure transducer will measure air with no problem. It will compress, but only to the same pressure applied.

Actually, air trapped in the line will cushion pulses from pumps and that's a good thing for longer transducer life. Also, the next time you remove the fitting, you will have a clean disconnect.

[JDA_BTR]

Bought the part works great:

[RV-14E]

Another approach, which I did not develop but used and has been shared here on VAF in other posts in the past, can be found here:

http://rv-14a.blogspot.com/2016/12/a...re-switch.html

[Larco]

Another idea for an oil warning light using Vans switch.

[EXflyer]

Originally Posted by gasman

Good question..... Pressure is pressure.. It doesn't matter if it's water, gas, oil or air. They do make the transducers compatible with the product being measured. But an oil pressure transducer will measure air with no problem. It will compress, but only to the same pressure applied.

Actually, air trapped in the line will cushion pulses from pumps and that's a good thing for longer transducer life. Also, the next time you remove the fitting, you will have a clean disconnect.

Wont happen you will have oil the air will go away over time and be replaced with...……..OIL.