Defender 200tdi temp gauge

Hi all,

Im still puzzling over my temperature problems. I have asked a friend
if I can borrow his infrared temperature gauge/thermometer thingy so
that will give me the actual operating temperature.

What should it be? I know the stat is supposed to open at 88°C, so Im
guessing a reading of 90°C would be expected.

Further, I know that sender units are closely matched to their gauge
(thanks Nige). I have also seen a temperature gauge off another
Defender 200tdi but it is different to mine?!?

My gauge has 1 white bit covering 3/4 of the gauge, followed by a
small black bit and then the red section. The other gauge I have seen
has a small white strip about 2 needles wide to the left, then a big
black blit with a horizontal white line above it, then the red. Are
they both correct for a 200tdi??? Could mine be off a 300tdi?

My main reason for asking is that I have no glow plug light on the
dash either (not that that bothers me), so am wondering if its the
original dash and clocks?

Thanks
Jon

In message <[email protected]>
Jon <[email protected]> wrote:

> Hi all,
>
> Im still puzzling over my temperature problems. I have asked a friend
> if I can borrow his infrared temperature gauge/thermometer thingy so
> that will give me the actual operating temperature.
>
> What should it be? I know the stat is supposed to open at 88°C, so Im
> guessing a reading of 90°C would be expected.
>
> Further, I know that sender units are closely matched to their gauge
> (thanks Nige). I have also seen a temperature gauge off another
> Defender 200tdi but it is different to mine?!?
>
> My gauge has 1 white bit covering 3/4 of the gauge, followed by a
> small black bit and then the red section. The other gauge I have seen
> has a small white strip about 2 needles wide to the left, then a big
> black blit with a horizontal white line above it, then the red. Are
> they both correct for a 200tdi??? Could mine be off a 300tdi?
>
> My main reason for asking is that I have no glow plug light on the
> dash either (not that that bothers me), so am wondering if its the
> original dash and clocks?
>
> Thanks
> Jon

There are 6 possible temperature guages! However, they are all 12V.

Richard
--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Helping keep Land Rovers on and off the road to annoy the Lib Dems

First Prize would be to put a thermocouple in the top tank and measure the
actual water temp. I don't think the infra red widget will do much for you
as you will be looking at the block and not the water temp inside the head
and pipes.

If you were in South Africa near Durban I would be able to help you out,
however I fear that this is not the case.

Regards
Stephen

I am going to do one of these soon:

http://www.red-ibex.com/EGTgauge.htm

Thanks Stephen... Unfortunately it would be a long commute to Durban
for me... Yorkshire, UK.

On Tue, 19 Jul 2005 08:35:24 +0200, "Fanie" <[email protected]>
wrote:

>First Prize would be to put a thermocouple in the top tank and measure the
>actual water temp. I don't think the infra red widget will do much for you
>as you will be looking at the block and not the water temp inside the head
>and pipes.
>
>If you were in South Africa near Durban I would be able to help you out,
>however I fear that this is not the case.
>
>Regards
>Stephen
>

Richard,
Even though they are all 12V, are they all "the same", barring the way
the cold, warm and hot bits are shown??

I am assuming that if there is only 1 sender unit for the Defender
200tdi and 6 gauges they will all be the same??

....basically any gauge from a Defender 200tdi will be OK??


>
>There are 6 possible temperature guages! However, they are all 12V.
>
>Richard

In message <[email protected]>
Jon <[email protected]> wrote:

> Richard,
> Even though they are all 12V, are they all "the same", barring the way
> the cold, warm and hot bits are shown??
>
> I am assuming that if there is only 1 sender unit for the Defender
> 200tdi and 6 gauges they will all be the same??
>
> ...basically any gauge from a Defender 200tdi will be OK??
>

As far As I can tell there is only the one sender, and the
differences between the guages are cosmetic only. If you had
somehow got hold of a 6V guage it would, I think, read over
temperature all the time.

Richard

>
> >
> >There are 6 possible temperature guages! However, they are all 12V.
> >
> >Richard
>

--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Helping keep Land Rovers on and off the road to annoy the Lib Dems

so Jon was, like...
> Richard,
> Even though they are all 12V, are they all "the same", barring the way
> the cold, warm and hot bits are shown??
>
> I am assuming that if there is only 1 sender unit for the Defender
> 200tdi and 6 gauges they will all be the same??
>
> ...basically any gauge from a Defender 200tdi will be OK??
>
>
>>
>> There are 6 possible temperature guages! However, they are all 12V.
>>
>> Richard

When I put the V8 in the 2.5 diesel 90, I used the V8 temp sender as it was
already in place. I spent ages worrying that the V8 was running too hot
until I had a "duh" moment and swapped back the the 2.5 sender. Read as
normal after that. I don't know the details, but I assumed after this that
the senders and gauges are matched in some way.

--
Rich
==============================
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)

On or around Tue, 19 Jul 2005 21:46:31 +0100, "Richard Brookman"
<[email protected]> enlightened us thusly:

>so Jon was, like...
>> Richard,
>> Even though they are all 12V, are they all "the same", barring the way
>> the cold, warm and hot bits are shown??
>>
>> I am assuming that if there is only 1 sender unit for the Defender
>> 200tdi and 6 gauges they will all be the same??
>>
>> ...basically any gauge from a Defender 200tdi will be OK??
>>
>>
>>>
>>> There are 6 possible temperature guages! However, they are all 12V.
>>>
>>> Richard
>
>When I put the V8 in the 2.5 diesel 90, I used the V8 temp sender as it was
>already in place. I spent ages worrying that the V8 was running too hot
>until I had a "duh" moment and swapped back the the 2.5 sender. Read as
>normal after that. I don't know the details, but I assumed after this that
>the senders and gauges are matched in some way.

they are. from the intermotor book:

all series: 52770
90/110 pre defender exc. V8: 52890
90/110 V8: 52930
D90/D110 2.3, 2.5, 2.5D: 52970
sundry Rangies: 52730

and a few others.

The book doesn't list electrical properties for 'em. sundry different
threads, though.

all those are 5/8" UNF, so the electrical properties must be what differs.


--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Quos deus vult perdere, prius dementat" Euripedes, quoted in
Boswell's "Johnson".

"Richard Brookman" <[email protected]> wrote in message
news:[email protected]...
> so Jon was, like...
>> Richard,
>> Even though they are all 12V, are they all "the same", barring the way
>> the cold, warm and hot bits are shown??
>>
>> I am assuming that if there is only 1 sender unit for the Defender
>> 200tdi and 6 gauges they will all be the same??
>>
>> ...basically any gauge from a Defender 200tdi will be OK??
>>
>>
>>>
>>> There are 6 possible temperature guages! However, they are all 12V.
>>>
>>> Richard
>
> When I put the V8 in the 2.5 diesel 90, I used the V8 temp sender as it
> was already in place. I spent ages worrying that the V8 was running too
> hot until I had a "duh" moment and swapped back the the 2.5 sender. Read
> as normal after that. I don't know the details, but I assumed after this
> that the senders and gauges are matched in some way.
>
> --
> Rich
> ==============================
> Disco 300 Tdi auto
> S2a 88" SW
> Tiggrr (V8 trialler)
>

Had exactly the same problem when the temp sender disintegrated when i did
my engine swap, replaced sender with a genuine LR V8 item but it read over
temperature (must be different ohms / celcius ratings between gauges &
senders). Replaced both sender & gauge with Durite units (needed a thread
adaptor for the sender) and ran my own wiring.. problem solved (peace of
mind too)

Tom
LR 90 4.6

In message <[email protected]>
"Richard Brookman" <[email protected]> wrote:

> so Jon was, like...
> > Richard,
> > Even though they are all 12V, are they all "the same", barring the way
> > the cold, warm and hot bits are shown??
> >
> > I am assuming that if there is only 1 sender unit for the Defender
> > 200tdi and 6 gauges they will all be the same??
> >
> > ...basically any gauge from a Defender 200tdi will be OK??
> >
> >
> >>
> >> There are 6 possible temperature guages! However, they are all 12V.
> >>
> >> Richard
>
> When I put the V8 in the 2.5 diesel 90, I used the V8 temp sender as it was
> already in place. I spent ages worrying that the V8 was running too hot
> until I had a "duh" moment and swapped back the the 2.5 sender. Read as
> normal after that. I don't know the details, but I assumed after this that
> the senders and gauges are matched in some way.
>

I'd guess that the V8 came out of a Range Rover, in which case the
sender is 6V.

Richard
--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Helping keep Land Rovers on and off the road to annoy the Lib Dems

I have got myself all confused over this...

I have replaced the sender unit with a genuine one for my engine, but
the voltage thing is confusing me now.

I have 12V at the "input" side of the gauge and 4V - 5V out of the
gauge and 4V - 5V at the sender unit. Is this classed as a 12V sender
unit or something else?

I think I remember reading a thread somewhere else about 4-5v being
correct but arent sure. Could someone please confirm what voltage I
should have at the sender unit for a 200tdi defender?

Thanks
Jon



>> normal after that. I don't know the details, but I assumed after this that
>> the senders and gauges are matched in some way.
>>
>
>I'd guess that the V8 came out of a Range Rover, in which case the
>sender is 6V.
>
>Richard

so beamendsltd was, like...
> I'd guess that the V8 came out of a Range Rover, in which case the
> sender is 6V.
>
> Richard

It did. You win a coconut.

--
Rich
==============================
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)

so Jon was, like...
> I have got myself all confused over this...
>
> I have replaced the sender unit with a genuine one for my engine, but
> the voltage thing is confusing me now.

Point being, I think, that it is not the correct sender for the engine you
require, but the correct one for the gauge. IYSWIM.

--
Rich
==============================
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)

On or around Wed, 20 Jul 2005 22:18:27 +0100, "Richard Brookman"
<[email protected]> enlightened us thusly:

>so Jon was, like...
>> I have got myself all confused over this...
>>
>> I have replaced the sender unit with a genuine one for my engine, but
>> the voltage thing is confusing me now.
>
>Point being, I think, that it is not the correct sender for the engine you
>require, but the correct one for the gauge. IYSWIM.

precisely. you need the gauge for the original engine fitment. since they
all seem to be 5/8" thread, this shouldn't be a problem.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Remember that to change your mind and follow him who sets you right
is to be none the less free than you were before."
Marcus Aurelius Antoninus (121-180), from Meditations, VIII.16

On or around Thu, 21 Jul 2005 09:44:07 +0100, Austin Shackles
<[email protected]> enlightened us thusly:

>On or around Wed, 20 Jul 2005 22:18:27 +0100, "Richard Brookman"
><[email protected]> enlightened us thusly:
>
>>so Jon was, like...
>>> I have got myself all confused over this...
>>>
>>> I have replaced the sender unit with a genuine one for my engine, but
>>> the voltage thing is confusing me now.
>>
>>Point being, I think, that it is not the correct sender for the engine you
>>require, but the correct one for the gauge. IYSWIM.
>
>precisely. you need the gauge for the original engine fitment. since they
>all seem to be 5/8" thread, this shouldn't be a problem.

that should of course read "sender".
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Festina Lente" (Hasten slowly) Suetonius (c.70-c.140) Augustus, 25

>>>> I have replaced the sender unit with a genuine one for my engine, but
>>>> the voltage thing is confusing me now.
>>>
>>>Point being, I think, that it is not the correct sender for the engine you
>>>require, but the correct one for the gauge. IYSWIM.
>>
>>precisely. you need the gauge for the original engine fitment. since they
>>all seem to be 5/8" thread, this shouldn't be a problem.
>
>that should of course read "sender".


OK, new sender unit is part PRC8593 which I believe is correct for a
Defender 200Tdi Engine...

... Gauge - well it could be shagged, or it could actually be right and
my engine on last legs!! Ho Hum!

When my temperature gauge arrives I will determine maximum actual
water temp and post results.

Jon.