Topic: Temp Senders


RG/NJ    -- 07-31-2011 @ 11:44 AM
  I have 3 original king seely senders. One single pole marked 224.Two double poles. One marked 217 and one marked 226. What motors are they for? I think the two poles are 46 and up. Thanks


supereal    -- 07-31-2011 @ 4:22 PM
  If you have threaded ports in your heads, they will work. The numbers are apparently to identify suppliers. No one has come up with a better explanation


42guy    -- 07-31-2011 @ 6:47 PM
  Probably 6 years ago, someone posted the following.

224 and 217 were used with 4# cap.

223 and 226F were used with 7# cap.

I jotted the info in my paper brain book. Don't know if true or not.

Dick




supereal    -- 08-01-2011 @ 7:02 AM
  The rating of the cap has no effect on the coolant temperature, as such, but extends the boiling point upward to prevent coolant loss. The primary purpose of the sender remains the same. When the two terminal sender reaches the boiling point, it opens and disconnects the single terminal side and putting the gauge reading at the hottest point. If that happens, shutting down the engine is critical to avoid damage. The pressure caps do suppress hot spots in the block, but they don't make the generation of heat less to any great extent. You can test the opening point of the two terminal sender with an ohmmeter and a pan of water on a stove. I believe you will find that the numbers on the sender have no bearing on the opening temp.


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