mark 8 fan switch

4

4.6rx7

New Member

May 11, 2006

48

0

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Aug 15, 2008

#1

• Aug 15, 2008

• #1

installed a mark 8 fan and was wondering if 198 on /189 off would be ok for a 180 degree thermostat or should i use a 180 on 171 off

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Aug 15, 2008

#2

• Aug 15, 2008

• #2

The first one is just right.

If you ran the second one, the fan would never shut off once the t-stat opened.

 

86T-Top

Founding Member

Jun 29, 2001

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17

Dublin, PA

Aug 16, 2008

#3

• Aug 16, 2008

• #3

Where are you going to get the 198 / 189 switch from?


Thanks

 

LiquidGT

Member

Oct 8, 2007

368

0

16

Near STL hell

Aug 16, 2008

#4

• Aug 16, 2008

• #4

86T-Top said:

Where are you going to get the 198 / 189 switch from?


Thanks

Click to expand...

The 198/189 switch comes from a late 70s VW, it uses a M22 thread so you'll need to get a 3/4 drill bit and a M22-1.5 tap.

I've been running a 200-185 GM style switch on a Taurus fan for two weeks now and I'm very pleased with the set up. It uses an easier to find 3/8 npt thread tap. Mine always activates at 195-188 everytime.

I bought the switch from Mid America Motorworks the switch and the harness is only $20. 1981-91 Low Temperature Electric Cooling Fan Switch - Mid America Motorworks

 

4

4.6rx7

New Member

May 11, 2006

48

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Aug 17, 2008

#5

• Aug 17, 2008

• #5

would this switch work turbo GN buick has a 203 on 187 off what is the normal operating temp for a 180 t-stat

 

LiquidGT

Member

Oct 8, 2007

368

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Near STL hell

Aug 17, 2008

#6

• Aug 17, 2008

• #6

I have a 180 thermostat BTW; the switch I have listed and the GN switch (if its really a 203-187 ?) is made for a 180 thermo.

I also found a place where you can get a GM style 210-200 switch for a 195 thermostat.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,265

17,952

224

Massachusetts

Aug 17, 2008

#7

• Aug 17, 2008

• #7

180 degree tstats don't mean the car always runs at 180 degrees.


My car runs consistent 188 degrees with the 180 tstat.