I've done a search and read several threads about the Dynon oil temp probe, and the common problems with grounding of this probe. If I understand correctly, the probe is grounded through the threaded fitting (which then finds ground through the firewall, or through the hose and then throught the engine?).
I've had slightly unstable readings (rapid oscillations by a few degrees). One post suggested using a hose clamp and a dedicated ground wire. So my plan is to get a large diamer hose clamp, clamped right around the cylindrical body of the probe, with an attached wire leading directly to my ground bus-bar (on my firewall). Will it work to directly ground the outer casing of the probe like this? Is the outer casing of the probe electrically connected to what the probe expects to be ground?
I've had slightly unstable readings (rapid oscillations by a few degrees). One post suggested using a hose clamp and a dedicated ground wire. So my plan is to get a large diamer hose clamp, clamped right around the cylindrical body of the probe, with an attached wire leading directly to my ground bus-bar (on my firewall). Will it work to directly ground the outer casing of the probe like this? Is the outer casing of the probe electrically connected to what the probe expects to be ground?