Re: [AMC-List] Temp sending unit question

[Tom Jennings <tomj@xxxxxxx>]

On Wed, 28 Jun 2006, Jay wrote:

> My 1966 TSM says that the temp sending unit should read 70 ohms when cold 
> and 120 ohms when 212 degrees. I measured my new unit and the old unit after 
> removing it from the engine and NEITHER one reads anywhere near 70 ohms 
> cold. I get 268 ohms cold with the old one and about 258 ohms on the new 
> one. That is reading it from the electrical connector to the brass sensor 
> that goes into the block.  What am I doing wrong. The TSM doesn't anything 
> about whether the gauge wire has to be  connected to the unit while it is 
> screwed into place.

Meetoo. I pulled the temp. sender from an original 1969 232,
and it reads the same, and does not match 1970 specs either.

The 1983, 70-something, and 1969 all read about the same. I
tested cold and 165 degrees. The '69 sender read lower, but
not much (notes are at home).

The two newer senders were stamped with a different number than
the 69 part, which got my hopes up.

Does the right part actually exist?!

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