EGT probe

[LLucas]

Any tips or Tricks for installing the EGT probe in my 6.7 Cummins Exhaust

 

[RVTRKN]

There are several methods liked by members here, but mine is pre turbo at the "Y". Also drill the diameter you need for pipe thread dia. But do not penetrate. Then slowly increase the bit size till you got at the proper dia. Keeping bit cool and dry vacuuming a lot during drilling the penetration. Tap with dry tap using vacuum technique as well.

On edit, make sure you have 1/8" NPT and not 1/8" BPPT (British Paralell Pipe thread) like mine was. It's a good thing I did a test thread in a block of aluminum.

 

[LLucas]

On my 07 i used grease and a magnet

 

[LLucas]

But the vacuuming technic sounds interesting

 

[RVTRKN]

The reason some don't like grease, is it can stick to the turbo until it's at a higher speed and cause an issue. I'm not saying it would, just that the argument against it is mainly for that reason.

 

[LLucas]

I also saw a video with the engine running

 

[RVTRKN]

Yup, seen it as well, can you imagine if a shaving got through and hit the turbo?

 

[LLucas]

Just not sure how much it will actually blow out

 

[LLucas]

Ok how do you drill the EGT probe hole? After looking it looks pretty tight in there?

 

[RDusch]

if you remove the wheel well liner you can get to it with a small drill , i always drill them running, just make sure to wear goggles

 

[Freebore]

I just finished drilling mine after reading about all the different methods, but ended up putting two donut shaped magnets on the site I drilled then started with a 3/16" hole and stepped up to 11/32". No grease used and the magnets and the bits held onto the debris each pass thru. Vacuumed the area clean when switching bits. Used the magnets for tapping as well. Vacuum was used pulling the magnets off to clean them - the magnets were very difficult to clean using the vacuum so was quite confident in the process (magnets really held the fine shavings as well as magnetized the drill bits). Each drill bit came out of the hole magnetized and holding onto the fine shavings. Made sure bits were very sharp (new), took my time.

 

[LLucas]

I too used the Magnet Method and i used grease when tapping

 

[RVTRKN]

I put mine a little lower than the pic shows, so it sees both sides combining at the same time. Did mine like Freebore but without a magnet, but if I do another I'll add the magnet in the process. I like that idea.

 

[LLucas]

The magnet seems to work really well

 

[LLucas]

As i was drilling the Magnet seem to pull the shavings right out of the hole and the shavings also stuck to the drill bit

 

[LLucas]

I used one of those round magnets with the hole in the center and i drilled in the center of it