I just talked to one of the local custom truck "gurus" and he said he did not like to install the egt probe on the Edge Attitude because the probe sometimes break and it will trash your turbo. He claims to have seen this multible times. He said he recommends installing it post turbo (and add about 300 degrees to the reading) to avoid this. He said he would install it pre turbo but the customer had to understand what could happen.
Now I have read a lot on this board about peoples' experiences and I have never heard anyone mention this. I find it hard to believe this kind of thing is happenibg and no one here mentions it. So, how about it? Anyone had this happen to them or experienced this first hand?

He did not see that several times. I'm not saying it is imposible, but if it happened several times, we would have heard something on this forum. For one guy to see it several times, not very likely.


With that said, I see the latest shipment of edge I got had a different style of probe. I have not inquired as to why. I assumed it was an issue of availability.

What's different about the new probes?


I wonder if it is easier to install post turbo. Things that make you go Hmmmmm........

I'll take pics later the evening.

http://www.dieselplace.com/forum/uploads/DSC00214_Large.JPG


http://www.dieselplace.com/forum/uploads/DSC00215_Large.JPG

I did inquire with Edge about this (I got one with my recent Beta Attitude upgrade) and was told it is the same, just a different supply source as Max mentioned.

Scotd1,


I don't see how a probe could break unless it was hit pretty hard with something. I think that guy probably heard that from a guy who heard from a guy who heard from a guy...


Max,


I got one of those new probes when I cooked mine against a hot fuse for an amp, direct ground, burnt it right in half.


Anywho the new probe definately reads faster than the old style. And you dont have to twist the wire around and around when installing it.


Joshhttp://www.dieselplace.com/forum/smileys/Rock On.gif

Maybe he just didn't want to take out the inner fender liner. Those 'rivets' can be bothersome, you know. He probably just wanted to do the easiest thing for him, so he argues to do it another way. Do it pre-turbo, you won't be sorry.


Dennis

Probes breaking off and trashing turbos?.....Poppy Cock.


I've been around more pyrometer probes than most mechanics, unless they work on aircraft too. Those probes are used in piston engine aircraft a lot, and their cousins in turbine aircraft. Those probes have a slightly different mounting system depending on the particular application, but they're made of the same materials.


I've seen them corroded quite a bit, and they quit working so you change them, but I've never seen one broken off that wasn't due to a wreck.

Well, that's kind of what I thought. I figured that if the Edge probe had been trashing turbos there would be a lynch mob from this board marching to their headquarters!
I don't know what this guy's deal is, maybe he doesn't want to do the install or doesn't like the Edge or.....
Thanks for the feedback.

Zeeb,


I'm with you 100%, but what is Poppy Cock? I've heard that expression before, but have no idea of it's origins, I get the idea behind what it means, kind of same a B.S. . . Seriously.


Dennis

The good thing about edge is that if this ever did happen, I am quite sure edge would take care of you. I have never heard a bad word about edge's customer service. http://www.dieselplace.com/forum/smileys/Clap.gif

Dennis,


Yes that expression means it's wrong, or B.S... It's just a more polite way of saying it.


I'm not sure what it's origins are, I've just heard it since I was a child as it was a favorite of my Mother's family, and it seemed appropriate for the response...http://www.dieselplace.com/forum/smileys/Ermm.gif

Breaking pyrometer probes? Sheesh. Ask the guy about his opinions on the effect of exhaust backpressure on turbo performance. That ought to be good for a predictable laugh.


BS, poppycock... same thing! A quick look reveals that poppycock derives from "pappekak," literally pap + kak = soft dung.





Art


'01 K2500HD, EC/LB, J/A, LTX-265s, 36' Shadow GT GN trailer


Edited by: joyof6

Ive Heard of this happening in a few of our company owned Peterbuilt trucks. After a few years of use the probes were failing and thus destrotiny the turbo. I was told that now, because of this the commercial truck industry has began installing these gages POST turbo. I may be wrong, but I know for a fact that at least 2 of our trucks turbos have been destroyed from this. Im in the same spot as I have installed my edge, but cant decide on where to put the pyrometer....I guess time will tellhttp://www.dieselplace.com/forum/smileys/Cool.gif

http://www.dieselplace.com/forum/uploads/DSC00214_Large.JPG


http://www.dieselplace.com/forum/uploads/DSC00215_Large.JPG








Those are Hewitt probes. These should be EXCELLENT and a big improvement over the EGT units! The sheath is inconnel (sp?) and about impossible to break...





I think I know the guy http://www.dieselplace.com/forum/smileys/Wink.gif who put the two in communication...

My brand new LLY edge does not have this stylehttp://www.dieselplace.com/forum/smileys/Ermm.gif. Mine is 1/8 NPT brass with compression fitting. What's with that?

I use the Hewitt probes along with a seperate leadwire assy with my gauge setups. Having a weatherpack connector near the probe allows for simple, tool free disconnect for service...





I also use the same probe with a hose clamp to mount into a pipe like a post turbo installation.





Pics on my site are old Isspro pics at present.Edited by: Kennedy

EGT probes breaking off are true. The over road truck industry has had this issue for years so they moved the probe location to turbo exit and lowered the max EGT number to correct for it. Now let's move out of the 1960's early 70's to current day materials. The EGT probes of today seem to have resolved the issues of breaking, but the over road trucks are still running after turbo for the added safety. I install mine preturbo and just donot use cheap probes and have never had a problem.