electric fan (help please!!!)
11-01-2006, 02:53 AM
#1
2nd Gear Member
Thread Starter
Join Date: Jun 2006
Location: Lehi, UT
Posts: 300
electric fan (help please!!!)
i just got my mark VII electric fan today and i'm planning on putting it in tomorrow night and i have no idea how to wire it up. has anyone else put this fan in and if so how. i'm still a beginner so i really have no idea. thanks for any help
11-01-2006, 01:12 PM
#4
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 5,263
RE: electric fan
i've done it.
you need:
1. 30 amp automotive relay from Radio Shack.
2. 30 amp automotive circuit breaker
3. some thick 10 guage wire
4. some thin 16-18 gauge wire
5. a toggle switch if you want to turn it off
........ if not it will be on at all times the key is on which is not a problem
Wires on Fan:
Its wierd, the green one is your + power, the two black ones are grounds.
one black wire will be high speed, the other is low, play with it by touching your ground
and hot wire back and forth, we got a little spark first time we got it wrong
so just swapped it around and fan came right on.
use good connectors and good grounds everywhere
try and keep it clean.
Here's a pic of how to wire it up.
We used a fuse marked for the radio in the fuse panel
and just tapped the small wire for the relay on/off signal into its slot.
you need:
1. 30 amp automotive relay from Radio Shack.
2. 30 amp automotive circuit breaker
3. some thick 10 guage wire
4. some thin 16-18 gauge wire
5. a toggle switch if you want to turn it off
........ if not it will be on at all times the key is on which is not a problem
Wires on Fan:
Its wierd, the green one is your + power, the two black ones are grounds.
one black wire will be high speed, the other is low, play with it by touching your ground
and hot wire back and forth, we got a little spark first time we got it wrong
so just swapped it around and fan came right on.
use good connectors and good grounds everywhere
try and keep it clean.
Here's a pic of how to wire it up.
We used a fuse marked for the radio in the fuse panel
and just tapped the small wire for the relay on/off signal into its slot.
11-01-2006, 02:05 PM
#5
2nd Gear Member
Thread Starter
Join Date: Jun 2006
Location: Lehi, UT
Posts: 300
RE: electric fan
so i only ground one of the black wires? i'm not sure if i understand what you mean by one ground is the low and one is the hi, but i'm pretty sure i want to set mine up exactly like yours with the switch and everything
11-01-2006, 02:11 PM
#6
2nd Gear Member
Thread Starter
Join Date: Jun 2006
Location: Lehi, UT
Posts: 300
RE: electric fan
oh one other question i almost forgot how do i get the old machanical fan off, i don't have to do anything special do i. i can just take it off and not worry about anything else
11-01-2006, 02:15 PM
#7
2nd Gear Member
Thread Starter
Join Date: Jun 2006
Location: Lehi, UT
Posts: 300
RE: electric fan
ORIGINAL: r.barn
i've done it.
you need:
1. 30 amp automotive relay from Radio Shack.
2. 30 amp automotive circuit breaker
3. some thick 10 guage wire
4. some thin 16-18 gauge wire
5. a toggle switch if you want to turn it off
........ if not it will be on at all times the key is on which is not a problem
Wires on Fan:
Its wierd, the green one is your + power, the two black ones are grounds.
one black wire will be high speed, the other is low, play with it by touching your ground
and hot wire back and forth, we got a little spark first time we got it wrong
so just swapped it around and fan came right on.
use good connectors and good grounds everywhere
try and keep it clean.
Here's a pic of how to wire it up.
We used a fuse marked for the radio in the fuse panel
and just tapped the small wire for the relay on/off signal into its slot.
i've done it.
you need:
1. 30 amp automotive relay from Radio Shack.
2. 30 amp automotive circuit breaker
3. some thick 10 guage wire
4. some thin 16-18 gauge wire
5. a toggle switch if you want to turn it off
........ if not it will be on at all times the key is on which is not a problem
Wires on Fan:
Its wierd, the green one is your + power, the two black ones are grounds.
one black wire will be high speed, the other is low, play with it by touching your ground
and hot wire back and forth, we got a little spark first time we got it wrong
so just swapped it around and fan came right on.
use good connectors and good grounds everywhere
try and keep it clean.
Here's a pic of how to wire it up.
We used a fuse marked for the radio in the fuse panel
and just tapped the small wire for the relay on/off signal into its slot.
11-01-2006, 02:51 PM
#8
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 5,263
RE: electric fan
you need enough wire to run around the inside of engine bay.
say 12' or so more than enough.
MarkVIII fans has a high speed and a low speed setting.
mess with the two grounds to figure out which one will make it go in high speed
then dont use the other.
we just hooked up one of the black wires, not sure if its on high or low
but it cools the car nicely and blows like a *****.
just play with touching your ground and hot wire to the 3 wires
to get the fan blowing in the right direction and speed.
it'll spark a little and nothing will happen if you do it wrong.
remember you want it blowing back towards the engine and sucking
thru the radiator.
say 12' or so more than enough.
MarkVIII fans has a high speed and a low speed setting.
mess with the two grounds to figure out which one will make it go in high speed
then dont use the other.
we just hooked up one of the black wires, not sure if its on high or low
but it cools the car nicely and blows like a *****.
just play with touching your ground and hot wire to the 3 wires
to get the fan blowing in the right direction and speed.
it'll spark a little and nothing will happen if you do it wrong.
remember you want it blowing back towards the engine and sucking
thru the radiator.