[DeTomaso] temp gauge sending unit.

[MikeLDrew at aol.com]

In a message dated 10/18/10 12 25 47, b.hower3400 at yahoo.com writes:


> FWIW  --  There is information about this on Pantera Place. I found that 
> for my 230 (full Scale) degree gauge and a Borg-Warner WT324 that I needed 
> to use a 15 ohm resister in series with sending unit for most accurate 
> readout. I used an inferred  gun to check read out at the area where sending 
> unit screws into the block. I have run it now for over 4k miles and I'm very 
> happy with over all results.
> 

I would anticipate that the temperature on the surface of the block is NOT 
the same as the temperature of the water--which is what you're measuring.

You should fully heat up the car so that the temp stabilizes, and then 
shoot the back side of the radiator, near where the water enters it (as opposed 
to where the water return to the engine, since it has been cooled by the 
radiator by then).

I suspect your modification has caused the gauge to read artificially 
low....

Mike