I'm going to be wiring a project in the next few weeks, but I'm still in need of some sending units for the gauges. The car has a set of winged gauges, which means they're 6 volt. I haven't had any luck finding some sending units, but did see the thread that Minewithnoshine posted a while back with the same problem. The part numbers were posted in the thread for them: -Oil sender:353-D -Water temp sender:362-D (3/8")362-F (1/2") When I was searching the internet, I came across Chris-Craft thread where someone posted that a company called Olympia Enterprises has the sending units. Unfortunately, I haven't had any luck locating a phone number or any information about them. Does anyone have any information for the 6 volt sending units, or leads for the Olympia Enterprises company? I'm looking for an oil pressure and two water temp sending units:
The sending units themselves dont care about 6 or 12 volt, its the guages themself, if you figure out the ohm ratings on the gauges you should be able to find some senders that will work for them, maybe even in the stewart warner catolog. Borg warner or standard ignition has many many sending units in there catologs some of them have the ohm ratings listed too. jeff
Good day gentlemen, I thought I heard my name. Mr. Taulbert, I had received your message and returned your call, please email: service@morrisgauge.com for future correspondence. As for the quest for 6v sending units: they are unicorns. Since they have been obsolete, discarded and improperly labeled for many years, it is difficult to locate a correct unit. They have also become quite expensive. I occasionally have them but they are not something we attempt to stock for a couple reasons: 1) all sending units eventually fail, thus you will be back to scouring for senders at some point 2) sending unit specifications leave a wide threshold for calibration, in some cases 20-30%. Thus, if you do find the correct one, it may be off by a considerable amount. We find that it is more reasonable to calibrate gauges to modern sending units, as applicable. If the unit ever fails, it can be replaced, and it is easier for us to guarantee gauge accuracy if calibrated together. In your scenario, I will look through some of our copious note "piles" to look at the resistance curve of your above mentioned sending units and to see what we have subs***uted in the past. BUT, there is another issue that I would like to bring to your attention: the sweep of the winged gauges you have pictured leaves little resolution. Let us say that you do acquire the correct senders and that the gauge calibration is absolutely accurate. The distance between 140 degrees and 190 degrees is very short on the sweep of those pointers. In a scenario where you do have a rapid increase in temperature, it will be difficult to notice. Secondarily, the use of electric gauges does provide a nice clean set-up. I have no qualms with that, but it does complicate the variables. As mentioned, the sending unit issue, but also in the sense that the wiring and internal connections in the gauge can provide changing resistance over time. I have seen many the electric gauge corrode via ambient moisture. Suffice it to say that the principles behind the electric gauge are more complicated than a mechanical temperature gauge, which for my two cents, is a better option. Mechanical temperature gauges operate off of simple thermo-dynamic principles and they are either working (intact) or not. It is very rare to have a "slow leak" in a capillary line or bourdon tube. In this case, the mechanical "Winged" temperature gauges have a much wider sweep and are easier to read on the fly (no pun intended). I hope this helps and is not too meandering. Again, please email me and I will perform some research as soon as possible.
Pardon the delay gentleman. It seems that after Hershey, everyone calls the "gauge guy". Unfortunately, there are no aftermarket sending units that mimic the original 6 volt ohm range. I have had success calibrating those gauges to another modern sending unit, but it is a delicate balance, even for us! If anyone knows of a direct replacement, I would be VERY interested.
My search for a 6 volt oil pressure yielded nothing, but I did land at John Wolf & Company in Willoughby, OH. John didn't have any original sending units, but he has the capability to make one - as well as any other sending units. It's around $80, which I didn't think was bad considering it's not an off the shelf item. I'll post a photo when I get it next week.
John is a good guy and we've done alot together. I've never seen him build a temp sender though. Give it a shot and let us know.
Just some follow up to the oil pressure sending unit that I bought from John Wolf & Company in Willoughby, OH..... It arrived today and looks great. I got it installed and wired up, and it looks to function just fine - overall, I'd highly recommend them.
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