Thread: Watchdog and Transfer temp

The temperature shown by the unit may not actually be anywhere near what then actual temp is in the Tfr case (or engine). That is not how they work as you note what the temp is on the gauge when the tfr case is at operating temp and set the alarn 10-20 degrees hotter.

Clear as mud?

For example my V8 when at normal operating temperature runs at about 90 degrees but the watchdog which has the sensor on the head inside the vallet shows 71 and so I have set the temp alarm at 90. When driving the water gauge moves around between 85 and 95 but the watchdog sits on a steady 71 - go down a steep hill in winter and it might drop to 68 and in summer going up a steep hill it might increase to 75 - the biggest change is in summer sitting at traffic lights where it might get to 80 and when you switch the engine off on a really hot day where the engine heat soak causes thing to raise but drops as soon as the engine starts.

So - connect your watch dog - sensor should be in a place out of airflow and away from the exhaust so the sensor gets minimal external influences and down somewhere where oil temp will have an influence. Run your vehicle until everything is up to operating temp - not on a hot or cols day and don't load up the vehicle etc - just get everything up to normal temp. Note the temp on the display and then set the alarm to the required temp. When you drive in the future the temp on the display should always be within a few degrees of what you have noted.

I bought mine from the supplier on AULRO but no longer have his contact details.

Garry

Thanks Garry - much appreciated. I was more or less thinking along those lines, but am curious to know if anybody knows what the "normal" temp range might be for the transmission. If anybody does have some info on this, it would be interesting.

I'll give watchdog a call soon and arrange to get a unit.

Cheers,

John

Actually knowing what the temperature is may have you worrying over nothing. I drove my turboed Diesel 2a for 20 years and the gearbox kept the inside of the cab nice and warm in the winter. In the summer I put the aircon on, yes I took the windows out.