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Thread: Engine overtemp alarm

  1. 21st November 2008, 08:16 PM #31
    Davy
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    ES/TM-2

    The Bongo mob

    Bongo Fury • View forum - Techie Stuff

    have all been using a rocker cover bolt for the sensor with good results.

    Haydn, our Uk Man uses a rocker cover bolt on the inlet side and has done so for over 12 months now during all our es/tm2 development work.

    hope this is useful


    Davy
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  2. 21st November 2008, 08:20 PM #32
    Davy
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    Rover V8

    What size are the inlet manifold studs?

    Davy
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  3. 21st November 2008, 08:23 PM #33
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    djam1
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    Way bigger than the 10 mm sensor
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  4. 21st November 2008, 08:48 PM #34
    Davy
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    10mm dia studs

    Are the studs more than 10mm thread diameter?

    Davy
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  5. 21st November 2008, 09:04 PM #35
    Davy
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    This size?

    http://www.enginesaver.com.au/images/tm-2%20sensor.jpg
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  6. 21st November 2008, 09:30 PM #36
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    djam1
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    Davy
    You were right and I was wrong they fit perfectly
    Just made the change hopefully it will get rid of the alarm on heat soak

    Thanks again
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  7. 21st November 2008, 09:35 PM #37
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    George130
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    Don't know but my block sensor came with a fitting that fitted into one of the bolts holding the block lifting hook at the back on the inlet side.
    I have mine so sensitive that the temp at idle in traffic will set it of but as soon as you start moving it goes out again. That way I know if it goes of when driving then she's heating up.
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  8. 21st November 2008, 09:41 PM #38
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    George
    What is your alarm temp set at??
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  9. 21st November 2008, 09:52 PM #39
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    Not sure. I slowly upped the variable resistor over time so it would only just stop triggering. First week it would go of after the engine was getting up to temp.
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  10. 7th January 2009, 12:47 AM #40
    wilber Guest
    Most cases by far of engine overheating happen as a result of coolant loss, split hose/failed water pump seal/hole in radiator...the list is endless..In every case of coolant loss the Low Coolant Alarm will warn you long before any Temp gauge/alarm even thinks of rising/alarming. I would guess that a Low coolant alarm will save your bacon 9 times out of 10. Also every time you switch on the ignition it informs you that all is well or not as the case may be.
    Cylinder head temp alarms do indeed have their place and there are a very few events that this will pick up and a LCA would not. However on balance my experience says ..1st fit a LCA and then if cash is available fit a TM-2 as a back up.
    The best thing about the LCA, is it goes off so early that it is often o.k. to stop..fix a small leak...top up and drive on.
    By the time a temp alarm has activated most coolant can have been lost and loads of roadside hassel.
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