Thread: Got my block over-temp alarm Fitted (Engine Watchdog Tm2)

No one was interested ?

Hi 'fender=1st,

Just read your post this morning. Thanks for the photos. I'd be interested to hear how it goes in service.

To produce the highest engine temp in a diesel you have to load it up hard. Idling will always cool it down.

If you can, hook up a big boat or caravan and find a long steep hill to tow it up (shouldn't be a problem in Tassie!).

If you can have it at full throttle at about 2500 to 3000 rpm in a low gear for a minute or two, that should generate the highest engine temp. [These conditions will generate maximum EGT as a result of maximum combustion temps and hence max. thermal load on the engine cooling system.] The lower the gear and hence, speed, the better - and a warm day will help too.

If this gets the coolant gauge to budge off its usual position and just begin climbing, that would be a good point to set you block temp alarm IMO - but I've never had one of these so that's just a suggestion.

PS: The sensor location looks OK to me but might be even better if you put the sensor washer behind the lifting bracket? Less ambient air flow effect? You could remove it before actually using the lifting bracket for lifting (heaven forbid you should ever need to...)

Nice write up. The display location looks easy to read too. Do you find it distracting at night? And is that spiral wrap on the sensor lead?

i think it would be had to come up with an ideal temp due to the thickness of the metal and the slow reaction time for the metal to heat and cool

water temp or exhaust gas temps would probably be a more real time indicator

is there anywhere you can fit it so that it is near a ater jacket

will watch the thread for you feed back on temps.

Originally Posted by Defender=1st

No one was interested ?

I'm interested just didn't catch your post.

Nice write up, thanks!

I'm going to get myself one of those things as well.

Jon

Thanks everyone.
njz, yer the sensor lead have the spiral wrap it came woth it so i just covered the bit in the engine bay and it great at night easy to read and see.
Leo109 & weeds, iam thinking i might put it behind the lifting bracket just for quicker reactions and less wind interferance.
D3Jon, yer i think its a good thing to get just as extra insurance.

Originally Posted by Defender=1st

Thanks everyone.
njz, yer the sensor lead have the spiral wrap it came woth it so i just covered the bit in the engine bay and it great at night easy to read and see.
Leo109 & weeds, iam thinking i might put it behind the lifting bracket just for quicker reactions and less wind interferance.
D3Jon, yer i think its a good thing to get just as extra insurance.

No need to move it..

Thermal transfer up the bolt/lifting bracket should be fine...

Wind wont cause an issue there.

I'd be inclined to remove the lifting bracket altogether and try it coupled direct to the head. I suspect the bracket might be causing some thermal inertia effects and increasing the response time for the thermouple to give you a realistic head temperature.

You can always put the bracket back on if you ever need it.............