Exhaust temp guage

n10zf8 · Post by **n10zf8** » Sat Mar 16, 2013 4:42 pm

In my 72 I have an exhaust temp gauge. What purpose does it serve and would it be important to keep? It is not currently connected to the sensor on the exhaust manifold, I was considering swapping the gauge out and putting in clock but I am not real sure if that's the best idea.

Your thoughts are appreciated
Thanks in advance,
-Mike

So Cal Mark · Post by **So Cal Mark** » Sat Mar 16, 2013 5:44 pm

an exhaust temp gauge? Can you post a pic, I've never seen one in a Fiat. Was it turboed at one time?

n10zf8 · Post by **n10zf8** » Sat Mar 16, 2013 6:21 pm

Mark,

Here is the gauge - carburetor non turbo 2.0L

Here is the sensor on the exhaust manifold

Beats me I thought this was strange but not a spider guru, yet.

So Cal Mark · Post by **So Cal Mark** » Sat Mar 16, 2013 7:28 pm

interesting, only checking temp on the first cylinder. Definitely not stock

redcars · Post by **redcars** » Sat Mar 16, 2013 9:16 pm

Exhast temp guages are used for tuning the engine. Normlly at 6" from the engine. Mostly used on rotory engines and desiels. They tell you when you are too lean and in danger of hurting the engine. Hot is lean and cool is rich. Not real usefull on your engine as a air fuel meter works much better.

vandor · Post by **vandor** » Sat Mar 16, 2013 11:06 pm

They were used before wideband oxygen sensors were available. Not uncommon on small airplanes, but
not very useful in a daily driving Fiat.

Exhaust temp guage

Exhaust temp guage

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Re: Exhaust temp guage