Mark, I assume that only one wire connects to the sender. With this in mind, the sender's body needs to be grounded through it's threads. NO teflon tape. Disconnect the wire, get an ohm meter and read from the sender's body to the engine block. That should be a dead short (should read the same as when you touch both probes together)! to test the sender, read from the connector on the sender to the engine block. You should read some resistance, probably in the 100s or 1000s of ohms. If it reads in the megohms, it's an open and the sender is bad (veryfy by reading between the sender body and the sender terminal). My hunch is that you pulled the terminal from the wire. Hope this helps, let me know. Joachim
> [Original Message] > From: Mark Jones <flyk...@wi.rr.com> > To: KR Net <kr...@mylist.net>; Corvaircraft <corvaircr...@mylist.net> > Date: 7/22/2004 7:01:04 PM > Subject: KR> Oil Pressure - What's Up? > > The last time I ran my engine prior to making a new starter mount / housing, my oil pressure gauge was working perfect. To remove the old starter mount / housing, I also had to remove the oil sending unit. Therefor, I disconnected the wire at the sender. I noticed in the mean time as I was working on my plane, if I turned the ignition to on, the oil pressure gauge would max out. I think this is normal with the sender disconnected. Anyway, I reinstalled the sender after I made the new mount / housing. I then went to attach the wire and twisted the post right off. Bummer.... I ordered a new $35 sender and it arrived today. I installed it, attached the gauge wire, turned the ignition to on and the gauge immediately maxed out. What's up with that. Is it possible the new sender is bad? Is there a way to test the sender? > > Mark Jones (N886MJ) > Wales, WI USA > E-mail me at flyk...@wi.rr.com > Visit my KR-2S CorvAIRCRAFT web site at > http://mywebpage.netscape.com/n886mj/homepage.html > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html