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1980 240GL Water Temp sender

posted by  jaydee on  Fri Dec 13 16:54 CST 2002
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last visit: Thu Oct 23 23:45 CST 2014
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I want to replace the water temperature sender unit on my 1980 B21F engine. The manual says the unit is on the left rear side of the head, next to the rear intake. When I checked this location, I found a sending unit there, but it has two leads, one white and one yellow/black.
The replacement sender I ordered and bought fro this engine has only _one_ lead, and looks just like the spares I have for my B20 engine.
There _is_ a sender or sensor with a single one lead on the B21F engine, located on the left side of the head, between number 2 and 3 cylinders. Could this be the water temperature sender?? If so, what is the dual lead sender at the rear left?
Please, can someone provide me with a definitive location of the water temperature sender?
Thanks
JD







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