Camshaft Plug 12mm?

[Directconnection]

Is the pipe plug that goes in the arse end of the T-III cams a 12mm pipe plug?

[turbovanman²]

Here's a thought, measure it?

[Directconnection]

Here's a thought, measure it?

I'd like to see you and your math skillz figure out a pipe taper with dial calipers in a threaded hole.

[turbovanman²]

I'd like to see you and your math skillz figure out a pipe taper with dial calipers in a threaded hole.

Well your Mr vernier and micrometer,

[shadow88]

Helpful???
http://www.maselmon.com/Content.aspx?ContentID=24

[Directconnection]

Well your Mr vernier and micrometer,

I am. But have you ever looked at the 1/16-27 npt plug/tap before {for instance: the tap used for the balance shaft oil feel hole} and wondered what part of it could possibly be .0625"? NPT "size" doesn't refer to the major nor the minor diameter or the taper.

So a simple "yeah, that's what I used" answer would have worked best. I put in a 12mm taper plug and it only goes in 3 threads where it should be much more than that.

[Turbo3Iroc]

I haven't had one out in awhile but I dont seem to remember a taper on them. I thought it was just a short set screw. Do you have another cam you can pull to check?

[turbovanman²]

I am. But have you ever looked at the 1/16-27 npt plug/tap before {for instance: the tap used for the balance shaft oil feel hole} and wondered what part of it could possibly be .0625"? NPT "size" doesn't refer to the major nor the minor diameter or the taper.

So a simple "yeah, that's what I used" answer would have worked best. I put in a 12mm taper plug and it only goes in 3 threads where it should be much more than that.

I'm messing with you Mr Joker, dish it but can't take eh?

If no one has the answer on Monday, I'll check a head.

[Turbo3Iroc]

I had some time today while waiting for help to arrive. The plug is tapered as shown in the caliper. I don't have a metric scale but I hope that helps.

[turbovanman²]

What size socket does it take? What would tell us if its metric or standard.

[Juggy]

those do NOT look like NPT threads......looks more like M12 x 1.5 pitch SET SCREW

Steve, you most likely had the wrong pitch tap, thats why it wont go in more then a few threads, as its trying to cross over them....

[Turbo3Iroc]

Thats the thing, I used a 7/32 only because I had that in a socket, but a 5.5 mm fit just as sloppy. A 6 mm or 1/4 would not fit.

It could be a set screw as I originally thought but there is a slight taper on it. It did feel like it bottomed, vs locked on the threads.

[Directconnection]

Maybe it isn't a tapered plug.... I had to hurry at work as we were closing, so I went through our huge assortment of plugs, keyways, dowels, etc... and the 12mm was close. I did notice that the threads go in a long way and thought it was odd, as it wouldn't be that deep for a tapered plug. {not usually, anyways}

[Lotashelbys]

Its an M12x1.5 socket head taper pipe plug for sure as I have gotten them before from my local Fastenal. The hex size is 6mm but you have to tap it into it as they were a very cheap plug from the factory. The Fastenal version is much better quality.

[Turbo3Iroc]

Ahh ok, when my 6mm wrench didn't fit in it I tried the others. Didn't think I would need to tap the wrench into place.

[Directconnection]

Thanx guys.... guess it'll fit nicely if I just wind down hard on her. {went in 1-1/2 to 2 turns then the 3rd turn was hard...}

[RoadWarrior222]

What size socket does it take? What would tell us if its metric or standard.

Or aftermarket if it's a combo of both

I used to have 2 vehicles that were pretty much 99% metric... now they're about half and half due to getting 3/4 heads on stuff where they should be 18mm etc etc.