Got it all figured out now..just wire switch to ground to wires leaving terminals "F" on fan relays...EZ :yesnod:


[Modified by skateparkdave, 5:21 PM 5/27/2004]

 

I installed one of the $17 dollar switches from Auto Zone. I wired it hot and direct to the fans.
Now granted, my a/c system is disabled and some of the parts are gone altogether, so I dont have to worry about a/c switches and stuff.
It took about 20-30 min to tap into the hot wires for the fans, run a power wire to a aftermarket fuse block I had previously installed, ground the whole thing and secure the probe.
i am very pleased with the results.


Ha Ha, I said "secure the probe" :lol: :lol: :lol:

 

that comes arter the installation doesnt it? uh hummm well anyways

yep looks real simple, checked my schedule and saturday after 6:00 im free
both switches have been purchesed and are now waiting patently in the back of the car...it helps to be a PSM at autozone :D

check list:

adjustable switches
tie wraps
bubblegum
scotch tape
six pack
oh yeah .... fresh batteries installed in the camera.

 

Okay, that article is added to my reference library for future use. The only problem with having so much free time is you come up with too much stuff to study up on. The fans should be set to about 185 right, don't want to go much lower then that do we?

The nice thing about just varying the turn on temp is that the rest of the fan cycle conditions are uninterrupted. Excellent tip! :cheers:

 

ok, did the alteraton sunday,, installations was a breeze, adjustment simple, and does anyone have a location for hosting pics?

started the whole process at 8:00 am and was driving around by 11:00 and that included the A/C retrofit, and a coffee run. spent more time deciding where the best place was to install the switch, for simplicity, and safety, i attached it to the relay cover in the left front nose of the car by the vacuum resevour, it is out of the way, and no moving parts in the area . the wires i attached where the dark green/white wire exits the wiring loom ( on my 87 it is just in front of the master cylinder), and tapped into that with a crimp on style wiretap. the other wire i ran to ground. This method allows the ECM to continue to control the fan in the event the switch should ever fail.

Now i went through the trouble of re-inserting the wires into the wiring loom, because i think it ends up a bit neater that way. but that is not necessary
The switch is available at any autoparts store that sells Hayden electric cooling fans ( Auto Zone etc. ) and sells for 17.99 the switch is rated for 16Amps @ 250v and will easily handle the cooling fan in our cars

Results: at idle, A/C on max, and car sitting in driveway, i set the switch to come on at 190*, Indicated temp never excceded 202 with ambient temp at around 85* and RH @ 85+%, after a bit of driving in traffic and sitting at lights later in day ( nope no idea of pavement temp, but this is southern fla ) indicated temps never excedded 205* ( also A/C on max )

BTW this is the MAIN FAN ONLY, Aux fan will wire in similar manner and i will do that one as soon as i can get a good schematic for the wires fir it. ( Haynes does not show the Aux Fan. )

 

The wires are already HOT.
What the Mid-America kit does is manually ground it.
It's a nice kit, the waterproof wire taps are worth the price.

 

Larry,

Send the pics to bwest@swbell.net and I will host them for you.


[Modified by Wheelman, 5:22 PM 5/27/2004]

 

Pics posted for LarryK 87: