EGT Probe Installation

[Panther1400]

Got a Quadzilla Commander for my truck and looking for the best way to install probe besides taking manifold off. The instructions say have the truck runningwhile you drill to blow out the metal, but that sounds risky if one does fall into turbo. I've heard of magnetizing the bit and grease on it and then a small magnet thru hole to pick up any metal that fell in manifold.



What do you guys think?

 

[Jeepinjason]

I am also installing my Edge today, so any feedback would be appreciated. I read in another post that having someone cover the exhaust up while the truck is running right before the bit breaks through will cause the metal flakes to blow out.

 

[RBell]

I used a bunch of grease on the drill bit which I cleaned often. The manifold is pretty thick so it took a while to punch through. Once I got through I used a magnet and then I pulled a MacGyver, took a small piece of fish tank air line and inserted that into the shop vac with some duct tape. That little device cleaned up the rest of the flakes that the magnet missed. Hope that helps...

 

[oneshotkyle]

i drilled and tapped mine while truck was running no problems whatsoever. it will blow out most all of the shavings if not all of them.

 

[RRees]

I just did mine on January 27th, 2007. Grease on the drill bit, and a magnet (small telescoping) in the hole after it was tapped and called it good.



RBell: Good thinking.

 

[AWierstra]

I took my shop vac in blower mode and loosely taped it to the exhaust to create the positive airflow, that seemed to work well for me

 

[DieselFiend]

When I tapped mine, I just drilled it with the engine off, ran a magnet down there then started the truck. Any shavings left in the exhaust will pass right through no problem.

 

[Prairie Dog]

If you do it with the eng running, use duct tape to cover all but about 1/2" hole at your exhaust tip. This ensures nothing will makes it to the turbo but be sure to use eye protection when drilling!

 

[qzilla]

When you realize how much pressure is generated when you get even the smallest hole in that manifold you will not be worried. No matter how you end up doing it start your truck without the hole plugged and hold a rag over the hole even 6-12in away and you will see what I mean. If you have never seen it you will be amazed!

 

[VTomasso]

If you are Jake equipped, why not activate the brake while idling? That should create plenty of pressure to blow out any chips.



Just my $. 02,

-V

 

[Panther1400]

Thanks for the posts, having it running sounds the easiest but I was afraid of the turbo being damaged if something were to drop in.

 

[BHenn]

I did mine by drilling small first and then increasing the size. I think I started with a 1/8th or smaller hole. I just kept stepping up the size each time; probably drilled it 6 times until I reached 7/16. The theory was small bit makes very small shavings and the step up each time produces more of a powder shaving, not chunks of steel. Then I ran a magnet down the hole and kept at it until it came out clean. Did the magnet trick after hole was tapped also. Work great and was very easy. Once you get that first hole drilled it is a piece of cake.



Brent

 

[Turbo_Bob]

I took my shop vac in blower mode and loosely taped it to the exhaust to create the positive airflow, that seemed to work well for me

I dont think that is a good idea because some of the valves are open. It will blow the chips into the cylinders.

 

[DeezelDood]

I concur with the "engine off" crowd. I don't like the aire hose in the exh pipe idea either. I did mine with grease and a pencil magnet. No problems at all.

 

[ACoyle]

I did my '99 Engine off, small pilot hole first, greased bit, Second hole at the corredt sise to tap. I had my shop vac sucking as close to the bit as possible to pick up what it could. Greased the tap too and cleaned it ofter. Small magnet at the end. No problem mon! 70K miles.



Just a note. Make sure that you do not seat the Thermocouple holder too deep and that the thermocouple extends beyond the holder.



AC

 

[Shadrach]

Most diesel mechanics , especially any with turbo rebuilding experience, would be horrified to hear that you would not take the turbo off. They also don't like the idea of the probe being in front of the turbo. In the big rigs you still won't find a probe pre-turbo. Shadrach

 

[TJJEEPER]

Grease on the bit and tap (cleaned frequently). Started engine after the tap was done and ran at idle for a couple of minutes after the hole was ready. No issues what so ever.

 

[pwr2tow]

The 05 and newer trucks have a cat and you wouldn't want metal shavings getting stuck in the cat.

I did my 99 with the engine off but when I do my 06 it will be with the engine running to blow the chips out before they can reach the cat. With the engine running there is no way chips can get to either turbo or cat.