Dan, I actually sent back one of the OP senders to Wicks because I thought it was bad. My original sender had only one lug on it and the body of the sender grounded itself to the engine block. I broke the lug when I had to remove the OP sender and I ordered a new one from Wicks. The new one came with two lugs on top. Hmmmm, Like you I tried everything and could not get a gauge reading. I called Wicks customer service and they said to send it back. Wicks shipped out a new one the very same day. I installed the new one and still no reading, I tried everything and finally called the manufacturer. I had it wired wrong. The body on a two lug OP sender does not self ground like the single lug did. It does not matter which lug you use for ground but one lug must be grounded to a common engine ground point. The other lug goes to your positive terminal on the gauge. You must then connect the gauge 12v terminal to your positive fuse box or buss bar. The negative terminal on the gauge must also go to a common ground point. Once I wired mine correctly, it has worked perfectly ever since. The same wiring arrangement applies to your OT gauge too.
Mark Jones (N886MJ) Wales, WI web site: http://mywebpage.netscape.com/n886mj e-mail: flyk...@wi.rr.com ----- Original Message ----- From: "Dan Heath" <da...@alltel.net> To: <kr...@mylist.net> Sent: Saturday, June 18, 2005 7:35 PM Subject: KR> Working hard and getting nowhere > I have been fighting this problem for over three weeks now, so I am throwing > it out to you Netters just in case someone knows how to debug this thing. > We have an Oil Pressure (OP) and an Oil Temp (OT) gauge. The gauges have > three lugs, sender, ground, and +12V. The OT sender is a brass lug that > screws into the oil sump and the OP sender is one of those almost bell > shaped cans. They both have lugs on the end of them where the sender wires > are attached. From the lug to ground, they both measure a little resistance > I am getting no reading on either of the gauges. > > Today, I took out the oil sender and put it in boiling water and the > resistance measuring from sender lug to ground, moved toward zero. I heated > it a little more with the torch and it went farther toward zero. This tells > me that the OT sender is sending a signal. > > How can I test the OP sender and how can I test the gauges? I have taken > voltage readings at the gauges and they read +12 between the sender and +12 > and strangely between +12 and +12. > > > > See you in Mt. Vernon - 2005 - KR Gathering > See N64KR at http://KR-Builder.org - Then click on the pics > There is a time for building and a time for FLYING and the time for building > has expired. > Daniel R. Heath - Columbia, SC > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
