Guage install???
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Senior User
Joined: Nov 2009
Posts: 177
Likes: 0
I could be wrong but I think what joe ment was drill the rite size start the tap straight and while tapping it back the tap off every so often.
If I am wrong Joe please corect me or add any thing.
Also some advice a friend gave me was to coat the drill bit and tap heavely with grease ro keep the shavings out of the manifold.
If I am wrong Joe please corect me or add any thing.
Also some advice a friend gave me was to coat the drill bit and tap heavely with grease ro keep the shavings out of the manifold.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Don't be too concerned with shavings, other than wear goggles to keep them out of your eyes while you drill. I just drilled, tapped, and installed adapter & sensor. Any shavings will blow out the turbo.
And yes, run the tap in, then back out. Go in a little further, then back out. Repeat until you get to the depth you need. Might not need to go all the way in, so when you get about half way, back the tap out and trial fit the adapter. Also, use copious amounts of lube. I just kept it wet with WD-40, but there is special tap lube that is probably better...
And yes, run the tap in, then back out. Go in a little further, then back out. Repeat until you get to the depth you need. Might not need to go all the way in, so when you get about half way, back the tap out and trial fit the adapter. Also, use copious amounts of lube. I just kept it wet with WD-40, but there is special tap lube that is probably better...
Fleet Mechanic
Joined: Nov 2008
Posts: 1,573
Likes: 4
From: Seattle
I too was aprehensive to drill and tap for the pyro probe. For me, this turned out to be the easiest part of the install. Like Joe said, do not run the tap all the way in and test fit the fitting once you get past the halfway point on the tap. I did this 3 times until the fitting started tightening up on the last thread. If you run the tap all the way in, you could end up with a loose fitting that will never tighten.(Tapered threads)
I ran the 'R' bit dry at low speed, after drilling a 1/4" pilot hole. I turned the tap dry. Then I went in with a magnet and shop vac. Then I fired up the truck and let it idle a minute or so to blow out anything I might have missed. (Maybe overkill, but peace of mind for me). The whole drill, tap,clean, and install probe part took less than 30 minutes. Spend money on a good bit and tap. Wear goggles.
I ran the 'R' bit dry at low speed, after drilling a 1/4" pilot hole. I turned the tap dry. Then I went in with a magnet and shop vac. Then I fired up the truck and let it idle a minute or so to blow out anything I might have missed. (Maybe overkill, but peace of mind for me). The whole drill, tap,clean, and install probe part took less than 30 minutes. Spend money on a good bit and tap. Wear goggles.
Senior User
Joined: Sep 2009
Posts: 166
Likes: 0
From: Mountain House, CA
I just installed the EV2's I bought from clay. Thanks to this forum and weekendwarriorfs32(Nick) that helped me out. I couldn't have done it with out him. It was not that bad. I would say the EGT probe was the hardest but thankfully I had Nick to help. Now that they are in I love them. Just take you time with wiring the gauges I reversed the wires on the boost gauge. We got it figured out and they look great.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
More Turbo
Joined: Aug 2008
Posts: 593
Likes: 1
From: Frankfort, KY
yep, I just stuck the tap in the chuck and drilled into the soft cast iron with it. I showed my master mechanic friend all the precautions others have stated, and he was like "screw all that, just tap it and forget it!"
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Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
What kind of drill do you have?? I've broken more than one tap by hand with a pre-drilled hole, so I'm amazed that you can drill with one. Is this some kind of special tap that doesn't need a pilot hole??
I re-read 18 Roland, and I'm still corn-fused. LOL
I re-read 18 Roland, and I'm still corn-fused. LOL
More Turbo
Joined: Aug 2008
Posts: 593
Likes: 1
From: Frankfort, KY
Air-powered impact drill. Regular tap from Sears. I couldn't work without air tools now! I'm spoiled.
More Turbo
Joined: Aug 2008
Posts: 593
Likes: 1
From: Frankfort, KY
Oops, yes I worded that poorly. Drilled with the R bit, then tapped it with tap in the same drill.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
