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Pyrometer hok up?????

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Old Jun 22, 2007 | 11:25 AM
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Pyrometer hok up?????

dad has a 1989 F350 and he bought the ATS turbo back in 1990 but he never really hooked up the guage back thenm bc he nerve really knew how nor the importance of it. the probe has a yellow and a red and another copper wire. doe the guage need voltage or does the thermal couple malke its own voltage?
does anybody know how it hooks up? ive done mine and buddies i just dont know what he did back then lol.
thanks!
 
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Old Jun 23, 2007 | 02:08 AM
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The thermocouple powers the gauge reading directly in most cases, the exception being more expencive ones that use a solid state amplifier box, which I don't think was avalable back then.

You will still probably have to route 12v to the light in the gauge for night operation (if equipped).

Oh, and don't shorten or cut the leads for the thermocouple, the gauge is calibrated for a specific ligth of wire.
 

Last edited by David85; Jun 23, 2007 at 02:10 AM.
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Old Jun 23, 2007 | 03:33 PM
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Wonder what kind it is.
The red and yellow are common thermocouple colors....but a copper one is not.
 
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Old Jun 25, 2007 | 10:56 AM
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In case the leadwire is not marked, red is negative, yellow is positive.
 
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Old Jun 25, 2007 | 07:01 PM
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Talking

i think i got it. didnt know red was negative never really looked tho i checked the probe and i have a resistance change so i think the guage is messed up, im gonna jusy order another setup.
thanks guys! trucks only runnin at 800 deg so the guy didnt set my pump up for the turbo so guess what im doing tonight im gonna turn up the fuel on that bad boy
 
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Old Jun 25, 2007 | 10:05 PM
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Where is the thermocouple?

If it is in the manifold you can stand more fuel.
If it is after the turbo, you can only stand a little more.

1200 max in the exhaust manifold
900 max after the turbo
 
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Old Jun 27, 2007 | 03:30 PM
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its after the turbo unfortuanately, but yeah ill keep an eye on it i wont go above 900 deg post turbo. it sucks to do this back and forth but its trial an era. hey am i right when i say this?? turning the top of the injection pump towards the passenger side advances the timing and is there such a thing as too much advanced??
 
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Old Jun 27, 2007 | 04:39 PM
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Yes, counterclockwise when viewed from the front of the engine.
Too far advanced will eat glow plugs in a hurry, a good rule of thumb is to keep the timing marks touching-outside to outside at most for a single strike mark.
 
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Old Jun 27, 2007 | 10:56 PM
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To much timing advance will also eat rod bearings.
If injection and combustion happens to far before TDC, everything gets hammered.
 
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