well a question for everyone out there that has put a pyrometer on their generation 3 cummins where did you place it in the manifold?? what type of drill did you use or did you remove the manifold? i have heard that the back to cylinders are the hotter ones and should be the ones to take the reading of and i have also seen them in the down tube and in the top. if you have pictures of the placement either send me a link or post the picture please.
thanks guys

 

here is a link for you that is very good.
https://www.dieseltruckresource.com/...highlight=pyro

 

Just put mine in two weeks ago and all I did was buy a tap of the appropriate size and it stated what size of drill bit to use. I bought the nitrite coated drill bit and then drilled the exhaust manifold just above where the turbo bolts up. I drilled to the back half as I heard there is a divider in the center. I drilled with an electric drill and did not remove any fender liners or anything else. I drilled and got a very fine dust of filings. I checked the hole depth frequently and when I had a very small hole into the inside of the manifold I had my son start the engine and then drilled on into the manifold. Of course I put on welding gloves and googles to keep from getting burned or something in my eyes. Once I was finished drilling I greased the tap and then tapped the hole. I would take somewhere between 1/2 and 1 full turn on the tap, remove it, clean the filings and grease off it and then grease it up again. I repeated the process until I had the hole properly tapped. It was suggested to not run the tap all the way into the hole as it is a tapered tap and it helps seal better if the hole is slightly tapered.

I actually thought the guage installation and wiring for the light and boost gauge were harder to do than the actual drilling and tapping for both.

I have since made a 1600 mile trip with the gauge and it was very interesting to see the temps change and the boost in different situations.

 

I unbolted my Turbo, dropped it and taped it off to make sure no shavings got in the turbo... Here is a picture of my probe location...

Gerry

 

That's where I put mine I think it is the easiest place to put it.

 

put mine in between 3 and 4 runners. Used a two flute Morse high speed bit. I drilled and tapped mine with the exhaust brake on. WOW. Leather gloves and a face shield are needed.
JIM

 

So how did you drill it? Did you use a right angle drill or just a small drill or small bit?

 

I pulled plastic inner fender well (just a few bolts) and my 18V dewalt fit in there through the wheel well...

 

I was told to install it on or close to #6 on the exhaust manifold. I think your location just above the turbo may also be a good location. Got to get time to get one installed on mine.

 

I put mine in the same location as the pic. I just coated my drillbit and my tap with silicone. Drill a little wipe it off, recoat, tap a little pull it out, wipe it off, recoat and so on and so forth. That was about 15,000 miles ago no problems.

 

I drilled and tapped for two probes - one pre and one post, that way I can measure whatever I need to.

 

I just did mine a couple days ago. I just popped the hood, stood on the tire and with the engine running drilled through the top of the manifold with a 1/8" greased bit (I used trailer ball lithium grease because it was handy). Then I grabbed a 21/64" bit, greased it, and drilled through the 1/8" pilot hole, again with the engine running. Finally, grabbed my 1/8" NPT tap and tapped the the hole. I did it by hand and checked the depth frequently with the probe to make sure I didn't go too deep. Took about 30 mins. total, mainly because turning the tap by hand was a bit slow. Its really easy to do. That was my first one and could probably do the 2nd in half the time.