Engine probe sourcing question

[219PB]

I need to purchase all of my Lycoming O-360 engine sensors. I plan to use a Dynon system and I see that they have a kit available. Are there different quality of sensors that justify purchasing from a specific vendor? Are all EGT sensors mounted with hose clamps? Is there other options on the CHT other than the bayonet 3/8-24 UNF??

[sglynn]

I have the same question, but I haven't seen that Dynon has a pre-packaged kit of sensors ready to sell. I asked Dynon today and they sent me the installation manual for Skyview and said see pages 7-15, & 7-16. There are lots of sensors and transducers there. So how do you buy them? Ala carte?

If I'm going to use Skyview and installing an IO-360 with CS, isn't there a predefined kit of sensors available to buy so I can install them while engine is off?

thanks

[Ralph Inkster]

Dynon EMSKIT-L4C (carbureted) or EMSKIT -L4F (injected) gives all you need except for the Fuel Flow Sensor which they sell separately.

[219PB]

I spoke with several individuals and I am going to purchase the ones from Dynon. I am going to purchase them alacart due to my installation of EFII components. I will not need all of the ones bundled in their kit.

[RViter]

Originally Posted by 219PB

I spoke with several individuals and I am going to purchase the ones from Dynon. I am going to purchase them alacart due to my installation of EFII components. I will not need all of the ones bundled in their kit.

Paul - the P/N's of the sensors is how the Dynon SkyView is programmed to interpret the EMS data. For example; the Oil Sensor is either "100409-001" or "100409-000" for my kit. This probably is pulling a piece of data on the resistance values of each device so it can change ohms to degrees. If one chooses to use a generic oil sensor the temperature readings are not correlated to the EMS. (Garbage in, garbage out ... as we say in the computer world.)

In my case I selected the wrong p/n's for both the Oil Press and Fuel Press, or should say, "didn't bother to select anything, leaving the defaults" - and the resulting EFIS/EMS display showed incorrect results.

If you can resolve the issues with generic sensors, then it might require determining the OEM and sourcing directly.

[SHIPCHIEF]

I'm trying to figure this out, as I'm building a remote oil filter assembly and want to use a small after market oil temp sensor on the filter housing. Chief Aircraft offers a sensor in 1/8" npt (pipe thread) and an adapter to fit it to the 5/8"-18 port on the oil filter or strainer housings.
http://www.chiefaircraft.com/iss-dcn0201700k.html but does not state the resistance. It's an ISS brand, I think using the Stewart Warner system?
Temperature Senders, I think Lycoming uses the:
? Stewart Warner Scale
? 800-33 ohm
? 0 to 250?F
Oil Pressure Sender
? Stewart Warner Scale
? 240-33 ohm
? 0 to 100 psi
The temperature and pressure gages use variable resistance and Stewart Warner was the standard back in the day.
Van's sells an oil temp sensor with a part number that matches:
Temperature Sender 100-240F by Datcon p/n 02017-00.
For oil pressure senders, PN 411K, Scott McDaniels from Van's states: The normal resistance of this sender is the standard 30 - 240 (same as many of the other sensors such as fuel level, etc.) (240ohm at 0psi, 33.5ohm at 100psi)
It is normal for them to have a measured value that is off by a few ohms at one end of the range or the other.

[sglynn]

I just bought Dynons engine sensors. Except I bought the red cube from Aircraft Spruce. Dynon assured me this will all work and they include the cables. Now to start installing.

[bret]

Originally Posted by 219PB

I spoke with several individuals and I am going to purchase the ones from Dynon. I am going to purchase them alacart due to my installation of EFII components. I will not need all of the ones bundled in their kit.

no need for the two red cube fuel flow meters with EFII, Robert has a conversion fuel comp box that goes to the Dynon, all electric, works on the principle of injector on time calculations like in your car, you can see a pic of it mounted on my sub panel. http://www.vansairforce.com/communit...=1745&page=173