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neophyte electric fan testing and rewiring 700

posted by  Rtilghman on  Sat Apr 27 14:48 CST 2002
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brickers:

I picked up a used (but apparently working) aux electric fan today, and am wondering how I test it. People mention "crossing the circuit"... by this do they mean just exposing the two wires leading to the fan and shorting them? I can't get at the connectors unless I pull the plastic clip... do I do this and reverse them? Just kinda confused on what I'm supposed to do to test it.

Also, I'm wondering how, exactly, you go about wiring in a new radiator thermostat to trigger the electric fan directly when the system heats up. Do I cut one of the wires from the fan (grey/red?) and lead it to the stat?

Any explicit help is greatly appreciated. Thanks in advance.

-rt








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    neophyte electric fan testing and rewiring 700

    posted by  Lawrence on  Sat Apr 27 15:53 CST 2002
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    use bare wire or jumper wires (with alligator clips). Attach direct to the battery, positive to positive, negative to negative(in that order). That should make it run full speed.

    Lawrence








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      neophyte electric fan testing and rewiring 700

      posted by  someone claiming to be Rtilghman on  Sun Apr 28 06:05 CST 2002 [RELATED]


      which is the ground and which is the hot? I have a 1985 745t, so I can't realy tell just looking at the temp sensor (its in the middle of the hose behind the rediator) since both wires hook-up there. I imagine the grey/red is the hot?

      I'll hoot it directly at the fan itself (to the battery off that short fan wire), but teh wires are the same color everywhere....

      Also, if I get a new Nissens three row I've heard that the radiator has a hole for teh temp sensor. Does it make sense to move it from teh hose positing if I've never had a problem? If I move it from the hose position or just leave it, will I hve an open hole somehwere that I have to cover/patch? Does the radiator come with a cover for that hole should I decide not to use it?

      Thanks for teh post.

      -rt







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