EGT probe location
#1
EGT probe location
So last night i was doing so reading and dug up some old (2004) threads about pre and post turbo mounting locations for the egt probe.
The biggest reason put forward from the post side was what if the probe breaks off and goes through the turbo??
I did a bit of searching and coulnd not come up with any first hand accounts of this happening.
My truck is stock and will stay that way until it is off warrenty so I'm not too worried about melting a turbo BUT I figure if I have paid the money to put a probe in my truck it should be in the most acurate spot.
So I guess my question is this. Anyone have one of these things break and go through your turbo??
And is the risk of this happening great enough to give up an acurate reading pre-turbo.
Thanks
Hilgy
The biggest reason put forward from the post side was what if the probe breaks off and goes through the turbo??
I did a bit of searching and coulnd not come up with any first hand accounts of this happening.
My truck is stock and will stay that way until it is off warrenty so I'm not too worried about melting a turbo BUT I figure if I have paid the money to put a probe in my truck it should be in the most acurate spot.
So I guess my question is this. Anyone have one of these things break and go through your turbo??
And is the risk of this happening great enough to give up an acurate reading pre-turbo.
Thanks
Hilgy
#2
#3
Looking forward to doing the install this weekend.
Thanks
Hilgy
#4
One of the forum member here Mike Chan, has told me he has seen many people putting them in the Drivers Exhaust Manifold apparently you can get to it from underneath the manifold and lowering the risk if your doing it while still on the truck to get metal filings in the turbo.
I would recommend using going slow and then just as your about to go though put grease on the bit so it hold more metal. Also I would recommend using a unibit its easier to keep clean and control of the metal shavings.
Currently mine is installed post turbo about 3" from clamp thats on the rear of the turbo. I plan to add another gauge in the manifold as well so I have two reference points to monitor. I plan to add my second one this weekend if the rain they are calling for doesn't happen Ill post pics of the setup.
I would recommend using going slow and then just as your about to go though put grease on the bit so it hold more metal. Also I would recommend using a unibit its easier to keep clean and control of the metal shavings.
Currently mine is installed post turbo about 3" from clamp thats on the rear of the turbo. I plan to add another gauge in the manifold as well so I have two reference points to monitor. I plan to add my second one this weekend if the rain they are calling for doesn't happen Ill post pics of the setup.
#5
i would go pre turbo all day long!! and grease the bit before you even start drilling. it acts as a lube for the bit and catches most of the shavings. then take a paper clip with a magnet on the end and fish out all of the small shavings. then put grease on the tap and tap it out. then do the same procedure with the paper clip and finally install the probe.
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#9
I've installed several thermocouples in DS exhaust manifolds, and never use grease or run the engine. Just work your way up to the final hole size with a few good, sharp bits. A good bit will cut the cast iron so that it comes off in ribbons. Any small pieces will fall to the ground. After you tap the hole, you can float a magnet underneath the manifold and drag anything inside, out the hole.
#10
X2 the bit is made to extract the iron out no grease is needed but a good pair of glasses are, start small and go up to the right size i did use the paper clip works well but keep the motor off because anything that brakes off inside will go right into the tubor then when you tap it only go 1/2 way so it will fit tight when you screw it in.
http://www.dieselmanor.com/diy/PSD3-gauge/image24.htm
http://www.dieselmanor.com/diy/PSD3-gauge/image24.htm
#11
X2 the bit is made to extract the iron out no grease is needed but a good pair of glasses are, start small and go up to the right size i did use the paper clip works well but keep the motor off because anything that brakes off inside will go right into the tubor then when you tap it only go 1/2 way so it will fit tight when you screw it in.
http://www.dieselmanor.com/diy/PSD3-gauge/image24.htm
http://www.dieselmanor.com/diy/PSD3-gauge/image24.htm
Thanks for all the comments guys
Hilgy
#12
I think he means to only run 1/2 the tap's length into the manifold(that's what I do). The typical 1/8" NPT tap has about 2" of cutting threads, so stop when you still have an inch or so of cutting thread showing. The tap is tapered, so stopping early like this will ensure the thermocouple is snug/tight. As you start to cut threads, back the tap out to clear it as needed.
#13
he means only half way in with the tap! the tap should have about 3/4 inch of threads on in only go till the threads are just through the manifold.
#15