Engine Watchdog TM2 - Where's the best place to put sensor?

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So this unit does detect coolant lose so theres no need to get any other temp sensor???

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The unit I bought 12 months ago just had the temp sensor that I attached to the front of the head (see above). I believe that there is a new option that includes a low coolant alarm fitting as well.

As as far as I am concerned, and based on past experience, I have no great need for an actual low coolant sensor. The temp sensor as fitted gives me an indication of low coolant or any other situation that is causing the engine to overheat.

BTW as far as above comments on boiling temp goes... the coolant that I use has a boiling point of 127 degrees, which is way hotter than I would want my engine block getting in any case me thinks!

When I had the sudden loss of all (and I mean all)coolant recently the temp got to 114 degrees on the sensor. At that temp I seemed to have got away with no damage at all to the motor, thanks alone to the engine watchdog. :)

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Originally Posted by **Joker**

Thanks george for your input, can you plz specify where abouts on the back of the block should it go???


cheers simon

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I removed the lower bolt for the engine removal hook at the drivers side back of the engine. 10mm bolt that the temp sensor screws into.
I didn't hook up the auto shutdown as the last thing you want when doing a river crossing or steep rock climb is the engine shoting down on you.

Got my little unit today in the mail and put her in this arvo and geez it's a great little unit. Took the disco for a run today just through the streets and freeway and max temp I got was 92 degrees so set it to 93 for now. Just waiting for the weekend and hot weather to come so I can set it up where I want it and going to leave it. Will post some pics soon. I bolted the sensor on the right hand side of the engine where I found a free bolt hole located on the head just under and after the first injector and it seems to give a good reading, will find out soon enough.

Cheers Simon

Here are some pic's for you all,


https://www.aulro.com/afvb/images/im...10/01/1068.jpg
This is what i see when in the drivers seat can actualy see it through the steering wheel. good position for me as its low and out of the sun light.

https://www.aulro.com/afvb/images/im...10/01/1069.jpg

https://www.aulro.com/afvb/images/im...10/01/1070.jpg
This is where i bolted the sensor (Sorry for the pic quality). Nice easy access to the bolt hole.

https://www.aulro.com/afvb/images/im...10/01/1071.jpg
so far its giving me a good reading from where i have put the sensor.

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max temp I got was 92 degrees so set it to 93 for now

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You may soon find yourself increasing that alarm setting unless you want it sounding off all the time when you're listening to your favourite cd! As you say, the hot weather coming up will be a good measure.

I'll be interested to hear back on what your temp range reads under various conditions, but I'm imagining it should be fairly similar to mine, despite the different sensor location.

Don't get too worried if it gets over 100 degrees C at the end of a long steep hill (meanwhile standard temp gauge won't have budged one iota), just so long as it cools quickly when you're over the crest. Sometimes these gadgets can make us overly anxious, and other times they're worth way more than their weight in melted aluminium. ;)

Oh, and thanks for the pics!

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Originally Posted by omvanders

You may soon find yourself increasing that alarm setting unless you want it sounding off all the time when you're listening to your favourite cd! As you say, the hot weather coming up will be a good measure.

I'll be interested to hear back on what your temp range reads under various conditions, but I'm imagining it should be fairly similar to mine, despite the different sensor location.

Don't get too worried if it gets over 100 degrees C at the end of a long steep hill (meanwhile standard temp gauge won't have budged one iota), just so long as it cools quickly when you're over the crest. Sometimes these gadgets can make us overly anxious, and other times they're worth way more than their weight in melted aluminium. ;)

Oh, and thanks for the pics!

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G'day mate,

no probs on the pics..yeah i'm actual heading out tomoz for a bit of a recon for the 20th feb gathering here in melb so i'll be keeping my eye open to see how she goes. so i take it that realisticly it should not be over 100 degrees BUT it has to cool down its self other wise there is a problem. with today heat i got up to 92 degrees max.

cheers simon

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so i take it that realisticly it should not be over 100 degrees BUT it has to cool down its self other wise there is a problem. with today heat i got up to 92 degrees max.

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Simon, 100 degrees or even higher under load for a short time is nothing to worry about in my experience... if the temp keeps climbing after you've stopped working the motor hard, then you've got a problem.

Happy motoring... you'll soon get a feel for your engine temps and what is 'normal' for your chariot.

Cheers

Andrew