rad_951

Were you having cooling problems with the mechanical fan? The mechanical fan likely pulls more air than the electric fans and there is another issue affecting the cooling.

LT Texan

Honestly, I was looking for a reason to ditch the mechanical fan. Working properly it does pull some air and with the shroud, it does a good job.

jpitman2

My original metal 5 bladed fan could not handle the load here - cold climate work maybe. UK spec car, now in Oz Via Saudi.
jp 83 Euro S AT 53k

Rich9928p

My rescue '79 was reading above the 2/3rds temp mark with the AC during our hot AZ summer (above 105F/41C). The front pusher helper fan runs, so that wasn't an issue.

I found that the wiring connection to the water temp sensor on the engine was corroded. After replacing the connectors and cleaning the sensor the reading shows about 20% cooler. Now with the AC on it reads just a bit below or at the 2/3rds mark and only goes a bit above that when sitting in traffic. Before the clean it would read just a needle's width below the red mark.

So, before you go doing major surgery, make sure that the gauge is reading as accurately as possible ... make sure the connections are CLEAN.