[xj-s] Thermostat temp

["David Johnson" <davesjag@worldnet.att.net>]

Hello everyone,
As I slowly re-assemble my engine I'm trying to decide the best temperature
to set my new electric fan's thermostat.   I'm replacing the stock setup
(more stuff for the attic) with a 16" GM fan.  I will be fabricating an
entire new shroud.  Obviously the original electric thermo switch for the
stock electric fan is not suitable for the new "main" fan.   The stock
switch is designed to switch when the coolant coming from the Radiator is
over 180 degrees.  This obviously is set to turn on the aux fan when the
coolant temp is too hot.   Does anyone have any idea what temp coolant
coming out of the head is acceptable?   If we are using 180 tstats then the
temp normally would be over this point.  If I use an upper radiator hose as
my measuring point, at what temperature does everyone think I should set the
thermostatic switch?   It would be meaningless to have the fan turn on
whenever the tstats are open.   Might as well hard wire the fan.  On the
other hand setting the fan to turn on when the coolant returning to the
engine is at 180 is also pointless.   What's a good figure to shoot for?

TIA

Dave

---

Follow-Ups:

• Re: [xj-s] Thermostat temp
• From: "Robert C. Warnicke" <Obstinate@worldnet.att.net>
• Re: [xj-s] Thermostat temp
• From: Mike Morrin <mikem@southern.co.nz>

---

• Prev by Date: [xj-s] Rodding out rads
• Next by Date: Re: [xj-s] Thermostat temp
• Prev by thread: [xj-s] Rodding out rads
• Next by thread: Re: [xj-s] Thermostat temp
• Index(es):
  • Main
  • Thread