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EGT Sensor Install Tips

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Old Jul 8, 2021 | 08:24 PM
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EGT Sensor Install Tips

Thinking of drilling into the driver's side manifold near the outlet. I got the manifold off, so I can drill it on my drill press. Any tips, tricks, links are appreciated.

I am a newbie to this engine, I was surprised there were no gaskets. I would like to hear people's thoughts going back together: gasket or no gasket. While I am at it, I am taking off the pass side, bead blasting and spraying them.

Also a good thing because I just put injectors on and after I cycled the motor, the manifold was full of diesel/oil. Worth the effort (note: this is a van and the body is off so the work is easy!)
 
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Old Jul 8, 2021 | 09:05 PM
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I will say it's NPT threads, so don't bury the tap in the manifold like you would using a bolt tap. Run the tap in about 1/4 then test the fit, work the tap in a thread at a time or the tapered threads will be too large to seal if you run the tap all the way in
 
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Old Jul 8, 2021 | 09:32 PM
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What Wes said on the NPT threads and tap.

Regarding the gaskets, when I had mine off years ago, I put the driver's side on with a Felpro gasket, and the passenger's side on without one. Still no leaks on either side, but the visible part of the gasket is in rough shape. if you have them machined flat, I'd skip the gasket.

Mark
 
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Old Jul 8, 2021 | 09:41 PM
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What Wes and Mark said.

So you are going to paint the manifolds? Got something that can take the heat?

Below is a PDF with info on EGT probe install. Removing the manifold is not really necessary.
 
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Old Jul 9, 2021 | 01:04 AM
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Originally Posted by aawlberninf350
What Wes and Mark said.

So you are going to paint the manifolds? Got something that can take the heat?

Below is a PDF with info on EGT probe install. Removing the manifold is not really necessary.
All duly noted on the drilling and tapping and thank you. I have some high temp ceramic spray paint that claims 1400-2000 degrees. I was going to bead blast them and check for straightness + replace the bolts. I know it wasn't necessary but the engine is easy to work on right now. After just putting injectors in, the manifold was full oily fuel so I didn't want to add some metal flakes to that and run it through my new turbo.

Sorry I am not seeing the PDF, can you direct me to it?
 
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Old Jul 9, 2021 | 05:41 AM
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If you've already got the manifold off you might as well put some headers on there.

 
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Old Jul 9, 2021 | 05:55 AM
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Originally Posted by FordTruckNoob
If you've already got the manifold off you might as well put some headers on there.
OMG why did you do that, now i want headers!
 
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Old Jul 9, 2021 | 09:22 AM
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I'm definitely no pro at that kind of stuff but I did it with the manifold on the truck. I believe I drilled a pilot hole with a smaller bit and then drilled the proper sized one with the kit from Riffraff. Cant remember what size but the instructions will say. I only remember having to run the tap in about half way after pulling it out and checking a couple times until I could get the sensor to seat down flush against the outside of the manifold. Doing it on a bench should be even easier as long as you mark your spot good.

I think the consensus is the high temp black holds up the best. I did my turbine housing in the high temp silver and it looked cool for about a year then started flaking off. I don't think there is any coating or paint that will last forever on a surface that heat cycles that hot. Even the high dollar Jet Hot or Swain ceramic coats eventually flake off.
 
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Old Jul 10, 2021 | 01:46 AM
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Originally Posted by MVRKXV
Sorry I am not seeing the PDF, can you direct me to it?
Sorry! Here it is, check page 3.
 
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Old Jul 10, 2021 | 07:52 AM
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Originally Posted by Brandonpdx
I did my turbine housing in the high temp silver and it looked cool for about a year then started flaking off.
I did exactly the same thing, with exactly the same results. I like the silver, though, so I just re-did it this week.

Mark
 
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Old Jul 10, 2021 | 08:31 AM
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I would recommend mocking up the manifold on the head to get the proper location for drilling.

Gaskets… some like them, some don’t. I used gaskets to seal both side since they were slightly warped and leaking. It has worked well for years. If no leaks or warpage then should be fine without the gaskets. If you do use gaskets I recommend retorquing after warm. At least that’s how I did mine.
 
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