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Early temp sender

Posted: Tue Mar 24, 2020 7:12 pm
by Gary Schulz
Anybody know where to source the temp sender from a non voltage stabilized car (mid 1964 S)? I have what I thought was the correct sender but as the car warms up it just pegs the temp gauge. Pretty sure it isn't overheating when this happens...

Re: Early temp sender

Posted: Tue Mar 24, 2020 7:36 pm
by AndyPen
Nick has these once in a while, and someone I am chatting to someone who may have one too ;-)

Re: Early temp sender

Posted: Tue Mar 24, 2020 9:08 pm
by Charlynsane
I have a Used one and a repro if needed

ref: GTR102

Re: Early temp sender

Posted: Tue Mar 24, 2020 9:57 pm
by AndyPen
Gary Schulz wrote: Tue Mar 24, 2020 7:12 pm Anybody know where to source the temp sender from a non voltage stabilized car (mid 1964 S)? I have what I thought was the correct sender but as the car warms up it just pegs the temp gauge. Pretty sure it isn't overheating when this happens...
You have a pm and f Charley can't help I might have a plan B for you ;-)

Re: Early temp sender

Posted: Wed Mar 25, 2020 9:49 am
by OGW 1082
Gary
I've sent a PM to you.
Glen

Re: Early temp sender

Posted: Wed Mar 25, 2020 2:57 pm
by kevs 1961 mk1
Charlynsane wrote: Tue Mar 24, 2020 9:08 pm I have a Used one and a repro if needed

ref: GTR102
any pictures of the original I may have one in my box of parts

Re: Early temp sender

Posted: Wed Mar 25, 2020 5:21 pm
by Charlynsane
Hello

https://www.bmcfarina.com/contents/en-uk/p647.html

Here we go

For sale but really expensive

Normally green but some has turned black or very dark green with time

Re: Early temp sender

Posted: Wed Mar 25, 2020 6:52 pm
by kevs 1961 mk1
Charlynsane wrote: Wed Mar 25, 2020 5:21 pm Hello

https://www.bmcfarina.com/contents/en-uk/p647.html

Here we go

For sale but really expensive

Normally green but some has turned black or very dark green with time
this it https://www.ebay.co.uk/itm/AUSTIN-MINI- ... OSwvgheHhG~

Re: Early temp sender

Posted: Sun Apr 05, 2020 8:16 pm
by Gary Schulz
I know there have been many parallel threads on this topic recently but I was able to source a TT3800 replacement sensor which I was told is a replacement for the early non-stabilized sensor however I am still seeing the exact same issue. The temp gauge slowly just pegs at full hot.

Is this the correct gauge for a non-stabilized setup? I am assuming that this is for the stabilized setup so what does a non-stabilized gauge look like?
20200405_135825.jpg
20200405_135649.jpg

Re: Early temp sender

Posted: Sun Apr 05, 2020 10:08 pm
by 1071bob
The early non- stabilized gauges have two thumb wheel studs and three terminals and the needle is not damped and will swing if you shake the gauge.
If you look under the yellow line on the second picture you will see the part number as shown, you have to view it at a certain angle to see the number as it's between the two parts of the display.

Re: Early temp sender

Posted: Sun Apr 05, 2020 10:35 pm
by Gary Schulz
Thanks Bob. I will have a look for it based on your description...

Re: Early temp sender

Posted: Mon Apr 06, 2020 8:58 am
by Gareth Brandt
Is it the transmitter that is faulty? I have 7 n o s transmitters here :)

Re: Early temp sender

Posted: Mon Apr 06, 2020 1:31 pm
by Gary Schulz
Gareth, I suspect the sensor is good. I have tried all sorts of sensors in my parts stash and I also just obtained a replacement TT3800 and all act the same way. I need to see if I can find the old temp gauge then I can better tell what is happening.

Re: Early temp sender

Posted: Mon Apr 06, 2020 7:49 pm
by Spider
The gauge you have Gary is a later Thermal type that uses the 10 Volt Stabilized supply.

Re: Early temp sender

Posted: Mon Apr 06, 2020 8:28 pm
by Gary Schulz
I am unable to locate an early temp gauge in my parts stash here at home so I had the idea to install a stabilizer (voltage regulator) on the back of my speedo just so I could use the newer style temp gauge. I think I should be able to create a hybrid system (at least while I search for an early temp gauge) by running the fuel gauge directly off the battery supply and running the temp gauge off of a stabilizer.
Of course it is not quite that easy since my speedo is apparently an early "S" type where there is a bulb socket across the top right where you would normally mount the stabilizer!
20200406_140933.jpg
For now, of course I can just hang the stabilizer in the wrong spot just to get it to work. I never realized earlier cars were that much different...

Does anyone see a problem with my "theory"?

Re: Early temp sender

Posted: Mon Apr 06, 2020 10:37 pm
by Charlynsane
Hello Guys

I recently read that it was possible to adjust a temp gauge ?

Does someone know how to proceed?

Very interesting thread btw

Re: Early temp sender

Posted: Tue Apr 07, 2020 2:26 am
by OGW 1082
PM sent Gary
Glen

Re: Early temp sender

Posted: Tue Apr 07, 2020 4:47 am
by Spider
Gary, your idea is OK, but be sure to Earth the body of the Stabaliser.

Re: Early temp sender

Posted: Tue Apr 07, 2020 4:46 pm
by roymck
Gary Schulz wrote: Mon Apr 06, 2020 8:28 pm Of course it is not quite that easy since my speedo is apparently an early "S" type where there is a bulb socket across the top right where you would normally mount the stabilizer!

20200406_140933.jpg

For now, of course I can just hang the stabilizer in the wrong spot just to get it to work. I never realized earlier cars were that much different...

Does anyone see a problem with my "theory"?
The voltage stabiliser hangs to the side of the top bulb holder on a bracket so it will fit as per factory look . I fitted a later tank in my early car so needed a voltage stabiliser for the later fuel gauge to work . Easy job just take the 12v supply that goes to you old gauge to the voltage stabiliser and them off of that onto the old gauge supply .

Ignore red pen marks on pics .
FBF8625E-4CAC-48F4-B594-15D907EB7A30.jpeg

Re: Early temp sender

Posted: Tue Apr 07, 2020 5:31 pm
by bwaminispeed
Wrong thread....