Skyman
Well-known member
My problem was a direct drive fan the PO installed on my samurai. My intended fix was an electric fan, but it had to be self sufficient, I could just see me forgetting to turn on my fan and loosing a head gasket, so here's the solution I found.
Step #1
I found a thermostatically controlled fan switch that would come on at a set temperature with no user input required. Here's what I found.
Fedrated auto parts sells a Hayden fan control for $27.00
First I picked up the Hayden part #3653 Thermostatically controlled switch for the $27.00, here's the pics and the guts (other amps and uses arelisted on the back of the package this one had highest temperature swing,
The shiny probe slides under the top radiator hose where it connects to the thermostat housing, and seals when you re-tighten the hose.
One wire of the switch goes to positive + from your fuse box, the other goes to the positive + side of your electric rad fan. The ground wire from the fan goes directly to a good grounding spot on your chassis. Problem solved (sort of).
I also wanted a little more power/bigger wire to my fan so I purchased a bosch 30amp Bosch part number WR1 relay relay kit to take the brunt of the switching and current draw. pics below
I had no idea what temperature my 1.3 was running at, and wanted to calibrate the fan thermostats correctly, so I purchased an Equis Water Temp Gauge so I could dial in the thermostat where I wanted it. Equis Part number 8242 $35.05 A pretty nice guage with nice incremental readout/backlit with different colored bulbs red/blue/yellow
This could have been done with only the switch $27.00, but I preferred to have a high amp relay and an accurate temperature gauge
After I finish the install I will have step by step pics on how to install and dial in.
For never having to flip a fan switchI thgouth this setup was a bargain.
One question? does anyone know proper operating range for a slightly modified 1.3 (flat tops etc)
ALso any thoughts and comments are more than welcomed.
SKy
Step #1
I found a thermostatically controlled fan switch that would come on at a set temperature with no user input required. Here's what I found.
Fedrated auto parts sells a Hayden fan control for $27.00
First I picked up the Hayden part #3653 Thermostatically controlled switch for the $27.00, here's the pics and the guts (other amps and uses arelisted on the back of the package this one had highest temperature swing,
The shiny probe slides under the top radiator hose where it connects to the thermostat housing, and seals when you re-tighten the hose.
One wire of the switch goes to positive + from your fuse box, the other goes to the positive + side of your electric rad fan. The ground wire from the fan goes directly to a good grounding spot on your chassis. Problem solved (sort of).
I also wanted a little more power/bigger wire to my fan so I purchased a bosch 30amp Bosch part number WR1 relay relay kit to take the brunt of the switching and current draw. pics below
I had no idea what temperature my 1.3 was running at, and wanted to calibrate the fan thermostats correctly, so I purchased an Equis Water Temp Gauge so I could dial in the thermostat where I wanted it. Equis Part number 8242 $35.05 A pretty nice guage with nice incremental readout/backlit with different colored bulbs red/blue/yellow
This could have been done with only the switch $27.00, but I preferred to have a high amp relay and an accurate temperature gauge
After I finish the install I will have step by step pics on how to install and dial in.
For never having to flip a fan switchI thgouth this setup was a bargain.
One question? does anyone know proper operating range for a slightly modified 1.3 (flat tops etc)
ALso any thoughts and comments are more than welcomed.
SKy
I will have to start my own build up thread again "The gecko do it right the second time hehehe"
I have installed the fan and i is working quite well. It seem correct operating range is around 185-190. absolutely no hotter than 195. I prefer 187 or so. Too much heat tends to warp intakes and carburetors so the leak.
