Ok heres the deal. I got my EAS Egt probe in from Diesel Dawgs the other day. I was going to get it hooked up today. Where is the best place for the egt probe to go. Ive looked around on here and it seems that every one has there own spot for this. Thanks for the help and pictures would help. Im think Im just going to drill and tap with the motor on also.

 

This is the best spot, also where most put the EGT probe.

 

Yep that's the best place. As #6 cylinder runs the hottest, measuring it's temp is the best.

 

All right thank you guys

 

I have heard, and like the idea of, run the engine as you drill and tap. All the metal will be blown out. Either that, or use grease on the bit and tap to catch it all.

 

Here's another "angle," so to speak:

http://stuff.is-a-geek.net/PhotoAlbu...ics/CRD_24.JPG

I have never believed any of the paranioa about drill and tap chips causing a problem. Just pull the intake off the turbo after starting the engine the first time and if the impeller is spinning anything that might have gone in there has been blown out the exhaust.

 

I have a question. How come you guys insist on drilling a hole in a perfectly good exhaust manifold to mount the EGT probes. Every road tractor that I have ever worked on that had a pyrometer was mounted in the exh pipe directly behind the turbo outlet. Now I know I have heard several say that #6 cyl runs hotter so you need to take that temp but let me ask you this. Can you specifically do anything to cool that one cyl if it is runnning hotter? Why not take it at the turbo outlet and get pretty much a sum of all 6 cyl temps and dont even worry about getting shavings in your turbo. Just thought I would ask.

 

The sum of all the cylinders is good, yet there is anywhere between a 150*-300* temperature difference at the turbo outlet. So, if you are running at the turbo outlet and getting about 1250*, that means that your cylinder temps could be up to 1550* +, which could mean that you have already melted the top of a piston.

When I had mine mounted post turbo, I saw temps of 1300* using the cruise control, so I could possibly have melted the top of a piston. Now, using the manifold EGT temps, I am attempting to keep the temps in check.

The reason that #6 runs hotter is because there is no true air flow around the cylinder, the air has to go around 5 others before getting to #6.

Others will chime in.

 

Thanks stodg73, overlooked the fact that temps would be higher closer to the cyls. If true cyl temps are desired why dont people run one probe per cyl. other than the fact of having six gauges hangin on the cab?

If EGTs are consistently running near 1500* seems like different mods are in order also.

 

True but that's a waste of time and money. Its to keep me from melting something. Its a reference not exact. If its pushing 1400 out of 6 then ill get out of OD or quit laying on the gas.