The wiring on my car is hosed and the relays are missing. I have several 30 amp Bosh relays with scokets that can be mounted in the stock relay location, so rather than rebuilding the stock setup I'm considering the following plan.
1) Route power from the output side of the Amp meter, through the fuse block to the front of the car using 10 ga. wire and a 30 amp fuse.
2)Using a Bosh 30 amp. relay and plug, connect power to the relay's coil input and switch input.
3)Connect the normally open relay switch contacts to both fan motors with 10 ga. wire and connect the other side of the motors to ground. (Suppling a ground to the relay coil turns on both Fans).
4)Wire the Therm. Switches in the Rad to supply ground to the relay when activated.
5)Supply ground to the fan switch on the console and connect its outputs to the ground side of the relay coil.
Both Fans operate when either or both Therm. Switches are closed. Therm Switch can be overriden by the console switch.
Fans continue to operate after ing. is turned off to shorten cool down time.
By using 2 relays, I could control fans individually, but I don't think it is worthwhile in the Florida heat. Is the approach sound? Suggestions?
[This message has been edited by b4_thndr (edited 11-03-2002).]
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