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-   -   Smiths Water Temp Fitting Question (http://www.clubcobra.com/forums/all-cobra-talk/106605-smiths-water-temp-fitting-question.html)

elmariachi 09-07-2010 09:42 AM

Smiths Water Temp Fitting Question
 
Searched and didn't find anything conclusive. I am needing to fit my Smith's water temp probe in to my FE aluminum 2x4 intake. The gauge has a inside threaded nut at the probe end and I gather I need a threaded fitting with NPT on one end and possibly BSP on the other. Can anyone comment on a source for this fitting and the exact sizes?

Thanks.

Jim

blykins 09-07-2010 09:58 AM

You need a bushing....NPT-M on one end, NPT-F on the other end.

I can't remember the exact size of the sending unit, but you can just go to ACE hardware, Lowes, Home Depot, etc, and get a (for example) 3/8"NPT male fitting that has a 1/4"NPT female end on it. It should be called a reducer or a hex bushing.

elmariachi 09-07-2010 10:20 AM

So you are sure the British Smith's end is not a BSP thread? I am traveling and don't want to find out Friday when I get back to Houston Friday, then be unable to order it in with time to get it fired up this weekend.

blykins 09-07-2010 10:23 AM

Actually, no, I'm not sure. I was thinking of MY Smith gauges, which were made by Auto Meter. :-)

Can you call Finish Line or someone that sells them? Or have someone look and tell you if the thread is tapered or straight?

patrickt 09-07-2010 10:33 AM

Now I didn't put this in -- the elves in New Britain did. But here's a shot...

http://www.clubcobra.com/photopost/d...atersender.jpg

streetrod1927 09-07-2010 11:15 AM

Spesk with Peter Bayer at Nosinger. They advertise on CC sel smiths gauges.

elmariachi 09-07-2010 11:26 AM

Quote:

Originally Posted by streetrod1927 (Post 1076719)
Spesk with Peter Bayer at Nosinger. They advertise on CC sel smiths gauges.

I just did, thanks. Now I need to confirm what thread size and pitch is in the hole in the manifold. Aluminum Ford 2x4 medium riser. Anyone? Bueller?

blykins 09-07-2010 12:35 PM

I wish I could be more certain, but my bet is 1/2 NPT.

elmariachi 09-07-2010 12:57 PM

Thanks for the input guys, but I have it handled. In my case its a 3/8" x 18 NPT to 3/8" BSP.


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