SW heat gauge

[P.J.]

I am trying to get my vintage SW heat gauge to work in my chevelle.I hooked it up to the Gm heat switch and It does not work. I grounded the gauge and the needle went right to the end ,so I know that the gauge works.Does this gauge need
a special heat switch???
http://i265.photobucket.com/albums/ii234/suprss70/gaugescomplete.jpg
PJ

[John Brown]

It needs a S-W 362 series sender.

What size pipe thread do you need, or what is the diameter of the hole, in inches? I have some new old stock S-W 362-AJ senders that are 3/8 pipe threads, or about 5/8 or so inches in diameter for the threads.

[P.J.]

Thanks John
the dia. of the pipe thread is 830 thousands of an inch at the cylinder head head and it is 14 threads per inch.
If necessary I can step it up from 3/8 pipe to 1/2 pipe if it is the correct sending unit for the gauge.
Let me know what you want for it
Thanks
Pj

[John Brown]

Peter, the 1/2" variety is available from

http://www.glen-l.com/inboard-hdw/sw-gauges.html

You need part number 90-975. Don't worry about it saying 100-240 degrees, because the Deluxe gauges just leave off the number 60 down at the bottom of the gauge. I didn't know what size hole you had, but I'd rather see you get the correct sender instead of having to use an adapter. Just glad I could help out. http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[SuperNovaSS]

I have a bunch of NOS ones. The part numbers are 362AA, 362AH, and 363E. Let me know what you need.


Jason

[SuperNovaSS]

http://i179.photobucket.com/albums/w301/super-novass/SWSenders001.jpg
http://i179.photobucket.com/albums/w301/super-novass/SWSenders002.jpg

http://i179.photobucket.com/albums/w301/super-novass/SWSenders003.jpg

[John Brown]

He needs a 362-AH. They're brass and brass won't weld itself to an aluminum intake.

[SuperNovaSS]

What is the difference between the 2? They look the same externally except one looks to have a steel body and the other is brass.

Jason

[John Brown]

The difference in the numbers is brass vs. steel body. The boat versions are brass, but steel welds it self to aluminum through corrosion, so I wouldn't use the steel ones for that reason. If you have a cast iron intake it wouldn't matter though.

[SuperNovaSS]

Thanks John, you really know your SW. P.J., if you need one let me know. If anyone else is looking for one there are plenty to go around.


Jason


Jason

[P.J.]

Thanks John and Jason
John said I need a 362 AH so please let me know what
you want for a brass one and your address where I can send the money.
PJ

[P.J.]

Yes John the steel ones do weld themselves to the head
I have a bb head that a steel one welded itsself to the head and you cant get it out I need to drill it .
PJ

[P.J.]

John one more question. Is it necessary to put a plastic washer on the threaded part before I put the wire on the terminal??
Thanks
PJ

[SuperNovaSS]

I will sell any of the senders for $15 shipped in the US. Not sure what it will cost to send to Canada though. P.J. I will save one for you until we can figure shipping.





http://www.yenko.net/ubbthreads/images/graemlins/beers.gifJason

[John Brown]

I wouldn't think they should need a plastic washer. Mine just have a brass flat washer and a copper lock washer, but just about anything that won't work loose should be o.k.

[SuperNovaSS]

It looks like I can go first class mail to Canada and it will still be $15 shipped.


Jason