Guys, I am a little confused here? What several of you are typing about is by passing the temp sensor switch and there is mention of relays and switches that will carry the current involved (unless my head has messed up) there is only minimal current involved chaps as you are in effect bridging a SIGNAL wire not the high load feed wire.
If you were talking about switching direct feed to the motor then for sure you would be switching a high current feed but your not, your just talking about (and your spot on it is the correct way to do it) just putting an override switch into the signal wire that actuates the fan relay so all you need is a simple toggle switch.
I must have converted or supplied a mini harness for a dozen Morgan’s to do this and never had a problem or switch burn out. This however is not the case with later ECU controlled fans where great care should be exercised but fir the car under discussion all you need is 2 lengths of wire, a toggle switch, a few cable ties and a pair of piggy-back Lucar connectors. Takes about 30-45 min to complete the whole job. (Takes more time to mount the switch to be honest).
BR
Colin
Hi Colin
I appreciate this is a very old thread to resurrect, but is it OK to fit a fan bypass switch to a 2000 3.9 14CUX?
Thanks
Mike
