ATTENTION electrical gurus on the list.
Note: I have a NEGATIVE ground system on my '62 sprite with a 1275
engine.
I am going to add a "push fan" to my radiator for the "stop or slow in
traffic times" to attempt to keep cooler. Traveling from 0 to 15 MPH
for extended periods of time is a potential overheat condition for my
sprite. I wish to use a relay. Should the relay coil and the fan
motor GROUNDS be the correct legs to switch? Another way of putting
it would be to attach the HOT + to the relay common. (One side of the
pull in coil and common terminal of relay, which are separate
terminals but jumpered at the relay base) Then when the NO contact
closes, when the coil activation switch (manual now , thermo maybe
later) is closed, the fan would be connected through the fan motor to
ground to complete the circuit. Thus running.....
I propose this way to minimize the run on the HOT wire through the car
thus reducing the potential of shorting somewhere.
Does anyone know of a good source for a (adjustable ?) thermo switch
that could be inserted into the spare temp gauge probe outlet in the
radiator? (I have this plugged now) Currently, I have the temp gauge
probe connected to the block outlet for better gauge feedback of real
engine temp conditions.
I hope I haven't rambled to much to confuse the issue(s) at hand.
Once again, thanks to the list for help.
David L. Vrba
'62 A/H Sprite MKII
HAN6L14083
Dublin, CA
|