Tony,
Just a thought before getting too crazy about this .... the Nissan
water temperature switch that operates the fan is one thing ... The
sensor that operates the temp gauge however is a completely different
unit and something you might want to consider since the indications
you saw on the temperature gauge is the basis of your complaint.
Unless I missed something .. it sounds like your fan did run ... and
there was no loss of coolant etc ... the only thing that happened is
that the needle got to the red zone ...... One easy test would be to
start the bike and let it idle until the temp comes up ... and note
where the fan actually comes on .......also where it shuts off. If the
fan comes on "late" and shuts off while the gauge indicates that the
temp is still too high ... then either the fan switch is now out of
calibration and needs to be replaced or the temperature gauge sending
unit is not correct. At 176 degrees F the sensor should read between
47.5 and 56.8 ohms ... at 212 degrees F it should be reading between
26.2 and 29.3 ohms. If you have oxidized connections on the sensor
connector then the resistance will be higher than it is supposed to be
and you will get an abnormally high reading on your temp gauge. Of
course if the sensor is out of calibration then you are likely to get
anything.
I guess you see where I am going with this .... (that you possibly
were not really overheating .. just looked that way). I can remember
becoming overconcerned at one time about the operation of my cooling
fan etc because I though things were just getting too hot .... After
taking everything apart and putting it back together one day under the
right scoop I amazingly started running cooler than ever before. I
really don't think the bike started running cooler by my just looking
at it and handling the wiring ... I think I actually started getting a
more accurate indication of the temp on the gauge because I disturbed
the connector ......... I since cleaned the terminals and have been
running "amazingly" cool ever since.
campbell
----- Original Message -----
From: "���" <[EMAIL PROTECTED]>
Subject: Garlic Run Red Zone
> snip <
> I have the Nissan water temp sensor - switch mod which
> resulted in significantly lower temps since its implementation
> two years ago.
>
> Pump is pumping. Remove radiator cap, water wetter full AND
> circulating. Electric fans do switch on, and can be seen to
> move. The edge of the stock plastic blade is "chewed up"
> when it tried to consume a stray hose soon after the
> Tourmaster transplant. It appears to be working.
>
> Any clues or suggestions? What's the hot (err...COOL) set
> up on aftermarket fans?
> Tony Pace - VMOA # 247
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