EGT probe install location

[lcrawford]

I purchased a boost EGT combo and the instructions to install are not good where do you drill the hole for egt probe and any help on wireing would be good also. my truck is a 04. 5

 

[RankRam]

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[RonsRig]

I positioned my the same as Rank Ram, but I have seen others positioned just off cylinder #3. I put my here because I was concerned with the temp of the turbo, not necessarily the temp of the gasses immediatly exiting the cylinder. In most cases the temps are different from cylinder to cylinder depending on the engine. If someone has a reason for mounting directly off a cylinder, I would like to know.

 

[Michael Gibson]

I located mine off cylinder #3 and it's in the path of 1 & 2 also. So I'd say it'll be representative of 3 cyclinders temps. Easy to see & get to is why I did it. I put in a picture of where I drilled for it and one of the hollow boost bolt location (it's under the wire loom if you look close) and one shows the ISSPRO EV gages at night with dash lights on. If I did it right and they show at all

 

[XJSuperman]

Mine is done as YaYa has. I've also done 3 others for other folks in the same spot... no problems. I doubt very seriously you;d see a significant difference anywhere on the manifold or above the turbo... everyone seems to report very similar temps 'pre-turbo'... so anywhere you put it should really be fine. The key differences are pre vs post turbo.

 

[fj40dave]

Nice looking on the column!

 

[BRuppel]

so someone give me some first hand experience of how you kept those little metal shaving from going into the turbo. i heard of putting duct tape on the exhaust and it will make everything shoot back out the hole. i dunno.

 

[fj40dave]

so someone give me some first hand experience of how you kept those little metal shaving from going into the turbo. i heard of putting duct tape on the exhaust and it will make everything shoot back out the hole. i dunno.

Start you motor and drill the hole - let the exhaust blow everything back at ya, so to speak (wear goggles)

(no experience yet - but I'll probably do it that way)

 

[XJSuperman]

If you drill straight down into the manifold right off #3 cylinder it's simple.



1st make sure you grease the drill bit and tap. This catches a fair mount of shavings.

2nd all you need is a 'pencil magnet' which is a telescopic 'pointer' type thing roughyl the size of a pencil with a magent at one end. Usually used for pulling out dropped nut/bolts etc.

Drill then tap the hole. Then use the magnet and 'sweep' inside the hole you drill all around down into the manifold as far as it will reach. Doing this several times until you get very few or no more shavings on the magnet... not hard and only takes a minute or 2. Then IF any shavings remain they will blow past the turbo on initial startup not hurting a thing. As I sated above I've done 4 in this manner all quite recently and they have all worked fine.

Of course the duck taping of the tail pipe will do it too... as will doing it with the truck running. I for one am not a fan of those filings blowing all over creation into the engine bay.

 

[BRuppel]

so sounds like a combo of greasing the drill/tap, using the magnet, and duct taping the tail pipe is the way to go. need to buy my egt gauge and a pillar and get this shet done.

 

[RonsRig]

Because I mounted my sensor just above the flange of the turbo, I put a big horseshoe magnet I got from my father next to the place where I drilled the hole. It really wasn't needed for the drilling process because all the metal came off in a several long spirals.



When I tapped the hole, I put grease on the tap and it gathered up most of the debris. Then I took a vacuum cleaner with the attachment to clean a computer, turned it on the hole and removed the magnet.



I have been running the truck for several weeks now and havn't had any ill effects.

 

[JStieger]

I just mounted my Westach combo gauge yesterday. I drilled and tapped at the same location as Rankram with the exhaust almost plugged and with the engine running. I drilled using a right angle drill attachment with a small pilot bit first and then with the regular size bit at a slow speed. The shavings just came off in a spiral like for RonsRig and blew up the drill bit. Then I shut the engine off and tapped using thread cutting oil. I tapped a turn or two then removed, cleaned, and reoiled tap. In between I also periodically used a pencil magnet, which grabbed enough very fine shavings to barely cover the end of my pinky finger after everything was said and done. The oil grabbed most of the tap residue onto the tap flutes. The drilling and tapping took all of 60 minutes (which included 15 minutes looking for the 2 ferrules that fell of the EGT probe fitting into the engine compartment and then drinking a beer after I found them!), whereas all my research on the TDR in regards to giving me encouragement to do this myself took about 6 hours! Good luck!