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Fan mounting components, dash electrical components
There are a few ways to run the electric fan. The kit includes a relay, wiring, and a thermostat
switch to get used with the relay to turn the fan on and off at 185°F. The alternative way is to
use the relay with a dash mounted on/off switch
Dash mounted on/off switch
Using this set-up, the driver must watch the water temperature gauge and manually turn the fan
on when the water temperature gets to 212°F. The fan should only be needed while going less
than 35mph or in traffic.
This set-up will only power the fan with the ignition on. If you desire the fan to run with the key
out which could drain your battery, power the fan directly from the battery or from an always hot
fuse in the fuse panel.
Ground the black electric fan wire to the frame.
Connect the other electric fan wire to the #87 tab on the fan relay.
Ground the #85 tab to one of the 2-position dash toggle switches. The toggle will serve as your on-off
switch.
Ground the other side of the dash switch to the frame.
Connect the #86 and #30 tabs to a +12V 30A fuse in the fuse panel.
30 – +12V
85 – Ground
86 –+12V
87 – Fan
Thermostat switch
Using this set-up, the fan will turn itself on and off when needed. If desired, an override switch
can be installed as well to manually turn the fan on if desired.
This set-up will only power the fan with the ignition on. If you desire the fan to run with the key
out which could drain your battery, power the fan directly from the battery or from an always hot
fuse in the fuse panel.
Locate a coolant access point in your engine block or cylinder head to install the thermostat switch and
thread it in.
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