Pyrometer install
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Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
Pyrometer install
Just to make sure I have this right. Tap into the drivers side exhaust and make sure there is grease on the tap. Do you put teflon tape or anything or just screw it in? I got a used guage and a brand new prob kit for $75.00. I thought it was a pretty good deal. Is there anything I am missing?
Posting Guru
Joined: Mar 2008
Posts: 1,734
Likes: 1
From: Monroe VA
Start out with a smaller drillbit and work your way up to the size you need for the tap. Teflon tape would melt pretty easy and quick at 1200 degrees! Be careful how deep you tap the hole. Its a pipe tap so its tapered. Do not run the tap all the way into the manifold. Hope you get what I'm trying to say there.
Postmaster
Joined: Oct 2005
Posts: 2,956
Likes: 0
From: Northeast TN
I started with a small bit and worked my way up. I didn't use any grease, I did use a shop vac and vacuumed out the hole between switching bits. Also I did mine in the pipe rather than the manifold. Several guys on here have done it this way, and I figured it would be easier to tap.
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
Like the others have said, start with smaller drill bits on the manifold and work your way up in size. If you want to vacuum out shavings, you can, but it's not a big deal if you don't. Tap the manifold and just bolt up the pyro probe. No sealant or anything else is required.
Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
I did mine the way the guys said above, no grease and start small on the bit size and work up to the tap. Said to use anti sieze but didn't have any and just installed. One thing i did just to be safe is i kept the probe wires away from the fuel lines and anything around them from touching. Zip tied. Even though the wire is insulated, just did it for personal reasons, good luck...
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Senior User
Joined: Nov 2003
Posts: 423
Likes: 0
From: Providence, RI
Just one thing; don't start out TOO small, or else you may break off a bit in the manifold.
You can start with a 1/4" drill, and then up to the size necessary for the tap. A sharp drill will cut through the cast iron in the manifold without much trouble.
Just back the tap out a 1/4-turn for every 1/2-turn in, and take your time.
You can start with a 1/4" drill, and then up to the size necessary for the tap. A sharp drill will cut through the cast iron in the manifold without much trouble.
Just back the tap out a 1/4-turn for every 1/2-turn in, and take your time.
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Senior User
Joined: Jun 2007
Posts: 114
Likes: 0
From: Yahk BC
I bought a babies butt off e-bay that was drilled for a thermocoupler last year. When I changed my up-pipe donuts I had to install it because the threads and casting on my original b-butt broke. I was also installing gauges for the first time so I hooked the thermo to the b-butt. It works great. (4months so far)
I have never read of anyone else doing this.
Is that spot a good alternative to mount the thermo?
I didn't mean to hihack this thread... only want to let you know that there is another place to mount the thermo for the pyro. (hopefully)
Colin
Senior User
Joined: Nov 2003
Posts: 423
Likes: 0
From: Providence, RI
I bought a babies butt off e-bay that was drilled for a thermocoupler last year. When I changed my up-pipe donuts I had to install it because the threads and casting on my original b-butt broke. I was also installing gauges for the first time so I hooked the thermo to the b-butt. It works great. (4months so far)
I have never read of anyone else doing this.
Is that spot a good alternative to mount the thermo?
I didn't mean to hihack this thread... only want to let you know that there is another place to mount the thermo for the pyro. (hopefully)
Colin
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I bought a babies butt off e-bay that was drilled for a thermocoupler last year. When I changed my up-pipe donuts I had to install it because the threads and casting on my original b-butt broke. I was also installing gauges for the first time so I hooked the thermo to the b-butt. It works great. (4months so far)
I have never read of anyone else doing this.
Is that spot a good alternative to mount the thermo?
I didn't mean to hihack this thread... only want to let you know that there is another place to mount the thermo for the pyro. (hopefully)
Colin
Go Bills !
Joined: Jan 2008
Posts: 2,778
Likes: 65
From: Buffalo, NY
Did mine excatly like this, It was very easy to get to.
When you tap, like said above, Tap a few turns,back out,tap a few turns.etc Work your way in. After about half way up the tap. I checked with fitting. Don't want to tap to deep or it will never tighten up. I made the thread big enough so the fitting was 3/4's of the way screwed in. Spot checking with the fitting constantly.
I had a tap socket. So i could use a 3/8 drive ratchet and extension so i could make sure i was tapping straight.
Wear Safety Glasses !!
3-Gauge Install Pictures
3-Gauge Install Pictures
When you tap, like said above, Tap a few turns,back out,tap a few turns.etc Work your way in. After about half way up the tap. I checked with fitting. Don't want to tap to deep or it will never tighten up. I made the thread big enough so the fitting was 3/4's of the way screwed in. Spot checking with the fitting constantly.
I had a tap socket. So i could use a 3/8 drive ratchet and extension so i could make sure i was tapping straight.
Wear Safety Glasses !!
3-Gauge Install Pictures
3-Gauge Install Pictures
Senior User
Joined: Nov 2003
Posts: 423
Likes: 0
From: Providence, RI
In place of a tap-socket, you may be able to use an 8-point socket on the larger square-drive taps. I found that the cheap $9.99 imported socket-sets often come with a set of 8-point sockets, which work well enough to do the trick. If you're using enough force to break one of those 8-point sockets when tapping a hole, then you're not doing it right.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
I bought a babies butt off e-bay that was drilled for a thermocoupler last year. When I changed my up-pipe donuts I had to install it because the threads and casting on my original b-butt broke. I was also installing gauges for the first time so I hooked the thermo to the b-butt. It works great. (4months so far)
I have never read of anyone else doing this.
Is that spot a good alternative to mount the thermo?
I didn't mean to hihack this thread... only want to let you know that there is another place to mount the thermo for the pyro. (hopefully)
Colin