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Re: [TR] 1972 Triumph TR6 Temp - UPDATE

To: triumphs@autox.team.net
Subject: Re: [TR] 1972 Triumph TR6 Temp - UPDATE
From: thenicholls@verizon.net
Date: Wed, 16 Nov 2011 09:08:16 -0600 (CST)
List,
 
Just an update, I got a temp gauge from a friend of mine.  Went out and ran 72 
TR6 until temp moved and oil pressure came down.

Tested temp with the gauge along the engine on the side where the exhaust is.  
I got readings of 187-192 degrees which seems right to me.

So, now I am down to either the sending unit is bad, or just the gauge is 
reading low.  I heard from a lister who lives near me that he has the same 
situation and is just not worrying about it.  

My issue is that I ordered a new sending unit from TRF GTR110 4/2009 and 
attempted to install it, it did not fit.  Since it is the only one listed by 
the big three, I could not figure out why it would be wrong, so I pulled the 
existing one, cleaned it up, and put it back in. 

I know it is not the voltage stabilizer because I put gas in it over the 
weekend and it is reading correctly.

At this point, I am going to get the TRF sending unit and stop by a local 
British car shop for some free advice.

Will let you know what happens.

Craig
1972 TR6


Nov 7, 2011 01:25:23 PM, thenicholls@verizon.net wrote:

Replaced thermostat over the weekend, no change.

Also suggested was the voltage stbilizer (the one behind the speedo). I was 
advised it was connected to the fuel and thermo gauge. The fuel gauge is fine, 
and the thermo does work, once warm, it comes out of the clear bos on the left 
of the gauge and is in the painted while part at the lowest level. Prior, it 
always ran in the 6 PM range right in the middle.

Since the gauge has no temperature numbers, even if I take the temperature 
reading in the radiator, I have no idea what it should be. What is the "normal" 
range for it to run?

Also was suggested to replace the sensor. I tried last year to order one from 
TRF and replace it, but the new one did not fit, so I cleaned up the old one 
and put it back. All the big 3 only list one for my car, so I am not sure why 
it would not fit and I never had time to find out.

At least if I got a reading on the temp from the radiator I would at least know 
I am not running cold (which I don't really think is possible).

Any other ideas appreciated.

Craig 
1972 Triumph TR6




Nov 7, 2011 12:05:25 PM, yellowtr@adelphia.net wrote:

Craig,

If you have a good thermometer you should run the engine until you think 
it should be hot and then carefully open the rad cap and stick in the 
probe. Should be about what your thermostat is rated or a bit higher.

If the temperature is what you think it should be, I would replace the 
sensor next.

Bob

On 11/07/2011 09:23 AM, thenicholls@verizon.net wrote:
> Replaced thermostat yesterday, no change in temp gauge reading. Where should 
>I head to next?
>
> Craig
> 1972 Triumph TR6
>
>
> Oct 29, 2011 12:47:51 AM, thenicholls@verizon.net wrote:
>
> Don't know, I could replace it. Any way to test that? I did replace it 
>4/1/2006, that could be it.
>
> Thanks,
>
> Craig
>
>
> Oct 28, 2011 11:52:24 PM, fishplate@charter.net wrote:
>
> On 10/28/2011 10:16 PM, thenicholls@verizon.net wrote:
>> Is it possible for an engine to run too cold? I had never thought this was a 
>concern.
> `
> Yes, but it's not likely to be the plugs. Is your thermostat stuck open?


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