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Thread: temp gauge early vs late

  1. #1
    Join Date
    Jul 2016
    Location
    adelaide
    Posts
    30

    temp gauge early vs late

    hi guys,

    last week the car seemed to suddenly settle down into running nicely. i took it on a reasonable trip and was delighted to find the trip computer click down to 11L/100km. my smugness was short lived when the cabin filled with steam from all the dash vents. there had been hints of oring leakage and figured i'd get around to it - but i think its safe to say this is more than orings!

    i have just rebuilt the heads and refitted them with studs. at the time i did not replace the thermostat, but i did shortly after the steam event.

    anyway to cut to the chase, now i've made myself so paranoid about running temperature and pressurisation that i i want to get the temp gauge working as it should - it had been settling at the end of the blue segment. i just presumed it was a temp sender, but today i noted the cluster is date stamped 96 - and the car is a 99 thor. this makes me wonder if the early and late clusters might be different in this regard?

  2. #2
    Join Date
    Mar 2007
    Location
    Warwick Qld
    Posts
    1,610
    No temperature gauge as fitted by the Rover factory is worth the dashboard space it takes up! Get a "real" temp gauge!

    The factory (and many other makes as well), figured that people may be alarmed by seeing a gauge fluctuating all the time, so their response was to have a gauge that reads "normal" over a large part of the operating range of the engine temps. Like about 45 Deg C, to 115 Deg C. By the time the gauge reacts to a coolant loss or other overheating event, the bulk of the damage is already done. EA and EB Falcons were much the same, apparently.

    Many, many threads on here and other forums regarding this issue.
    -----
    You have the right to remain silent. Anything you say will be misquoted, then used against you.
    -----

    1999 Disco TD5 ("Bluey")
    1996 Disco 300 TDi ("Slo-Mo")
    1995 P38A 4.6 HSE ("The Limo")
    1966 No 5 Trailer (ARN 173 075) soon to be camper
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  3. #3
    Join Date
    Jan 1970
    Location
    Douglas Park, NSW
    Posts
    9,264
    The temperature gauge you should have has a bare area where 'normal' is.
    Prior to 1998, the gauge had a series of marks/lines in blue, white & red.

    I'm not sure if they're interchangeable but as Don says, 'normal' covers a big temperature range. My '98 needle sits bang in the middle from 80odd to 105deg.
    Scott

  4. #4
    Join Date
    Jul 2016
    Location
    adelaide
    Posts
    30
    thanks, and to Don too. the gems car stays bang in the middle. it seems i have the wrong instruments. i was going to order another sender, but thats pointless if the gauges are incompatible.



    Quote Originally Posted by Scouse View Post
    The temperature gauge you should have has a bare area where 'normal' is.
    Prior to 1998, the gauge had a series of marks/lines in blue, white & red.

    I'm not sure if they're interchangeable but as Don says, 'normal' covers a big temperature range. My '98 needle sits bang in the middle from 80odd to 105deg.

  5. #5
    Join Date
    Mar 2007
    Location
    Warwick Qld
    Posts
    1,610
    One option to consider is a Madman EMS setup. Programmable display, comes with adapters to use existing sensors, or the ones supplied with the kit. Not cheap, but very good quality. Has settable alarms and can be removed if you sell the vehicle
    -----
    You have the right to remain silent. Anything you say will be misquoted, then used against you.
    -----

    1999 Disco TD5 ("Bluey")
    1996 Disco 300 TDi ("Slo-Mo")
    1995 P38A 4.6 HSE ("The Limo")
    1966 No 5 Trailer (ARN 173 075) soon to be camper
    -----

  6. #6
    TheTree is offline ChatterBox Silver Subscriber
    Join Date
    Feb 2013
    Location
    Gosford, NSW, Australia
    Posts
    2,493
    I have an engine watchdog, works well but you need somewhere to mount it !

    Steve
    MY96 4.6 HSE P38. Niagara Grey; "The Phoenix"
    MY99 4.6 HSE P38. LPG, Blenheim Sliver; "Voldemort" burnt to a cinder
    MY79 RR Classic, Gone, MY57 Series 1 SWB, Long gone
    P38 write ups and info on my website http://p38.hts.com.au/

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