Engine/Transmission (1994 - 1998) installing egt pyro

[KHelfrich]

i was wondering is it a big deal to remove the turbo and manifold so i can drill it for the pyro and paint it or is it better to just try to do it on the motor and if i do remove it does anyone know where a good place to get the gaskets is and how much they cost and part numbers for them



thanks

ken

 

[JMauro]

i just did mine on the engine. backed off the turbo and slid a piece of sheet metal in so nothing would get in the turbo. did the drilling and tapping then fired the engine for a second (with the sheet metal still in there) to blow the chips out. for the four nuts and five minutes it took to back the turbo off it was peace of mind for me.

 

[JGheen]

It takes about 5-10 mintues to remove the turbo for this pyro installation. Then shove some shop towels in the manifold(do not unbolt it from the engine) port where you will be drilling. Drill the hole, tap it, blow out all the chips and pull the towels out, install the pyro boss fitting, pyro and your turbo and you ready to rock. Make sure to use plenty of anti-seize. Just my $0. 02.

 

[PKemp]

Where is the best place to put it ????

 

[JGheen]

The best place is obviously pre-turbo, but drill and tap the port towards the rear of the engine since it is closer to cylinder #6 which tends to run the hottest.

 

[Matt42]

The instructions that come with the Pyrometer kit from Geno's Garage make this very easy. I used the 1/8 inch IPT probe so if I fouled up the installation, I could make the hole bigger and use a 1/4 inch IPT probe. But it worked out the first time.



It took longer to open the box than to install. Leave the manifold on.

 

[LJHagen]

Pyro Install

Just got done putting the 1/4 pyro in mine... Pulled the turbo all-together, which was easy (don't forget the oil return tube on the bottom). Hardest part was getting the brass fitting to thread correctly into the new threads on a slightly curved part of the manifold-- Rookie mistake on my-part, drilling and tapping a hole on a curved surface. Learn from my mistake and put the hole somewhere FLAT.

 

[Lsfarm]

Just do it

I have never pulled the turbo or manifold to install a pyro probe.



Just use grease on the drill bit and clean the metal chips off the drill and the tap as you go. Then use a pencil magnet to fish around in the manifold for any stray metal chips. I rarely find any in the manifold.



If you are concerned that some chips are in the manifold, just remove the intake tube from the turbo and start the engine and make sure the turbo is spinning freely.



The four nuts/studs on the turbo can be VERY tight and get messed up when trying to loosen them. And they are costly to buy from Cummins.



Hope this helps, Greg L

 

[Dennis Garrett]

Locate the exact center of the manifold first, then drill left or right of it. There's a rib cast down the center on the inside, and you don't want to try to drill through that.