engine block temperature/alarm

[awg]

a few things got me thinking about engine block temperature, and overheat warning alarms

including;

1) an overheated engine, needed rebuild, only warning was felt a miss on a long uphill climb, noticed warning a gauge hit high, engine cooked

2) cracked radiator on Commodore..audible warning..pull over = ok

3) obtain engine subject high-end rebuild, notice it ha glue on "tabs" that melt at 125C (void warranty)

4) see adverts for this

https://engineguard.com.au/product/e...re-sensor-kit/

it seem to work by direct contact with engine block (and trans body)

I wonder what temp they are set to ?

an audible block temp alarm is a good thing imo, as in some circumtances, the water temp gauge can be unreliable (such as when you do not see it !) but also sudden loss of all coolant, or steam pocket

[Gildo]

An audible warning as an add on for an XJ seems like simple, cheap insurance to me.
Could be an additional coolant sensor but I like the idea of a block heat sensor.
You’d need to find an existing bolt hole and a sensor or, a simple temp switch,a power source and a buzzer or light that will get your attention.

[rustynuts]

Remember a donk is the hottest around the combustion chamber and the top of the piston. Put sensor near there.
Update models have an audible warning when a gauge goes out of spec.

[alexbrown64]

Good thread,

I have been thinking about this for a while. Its easy to miss a high temp gauge reading and then crap an engine out. Happened to me once with VW Polo in Sweden.. not a good experience.

Anyway, what do you think of both these devices and has anyone got one installed?

http://enginewatchdog.com/tm4.html

https://engineguard.com.au/

Cheers,

[LuluBelle]

I like the engineguard
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_.(o)_)__(o)_)--o-)_)

[alexbrown64]

I'm liking the engine guard too. Australian made, and cheaper. Has replaceable sensors.
Easy to install. Once its all working and you are at normal operating temps, then set the sensors for +10c. You can even set the duration of warning alarm.
I may get the dual set up for my engine and transmission. Could be a lifesaver in the future..



Cheers,