Stewart Warner gauge rebuild

R

russcc

Well-known member
2 questions. Picked up a pair of vintage 270 degree sweep 2" SW mechanical water temp temp gauges for the hot rod at Hershey. 1 needs a new temp sensor thermocouple.

1. Anyone have experience with a rebuilder on older SW gauges ?

2. Where do you find the brass 3/8 pipe to SW thermocouple adapter that fits in the flathead head ?

Thank you for the help Fordbarners
 
Here is a link to page that has trouble shooting instructions and drawings for identification of different styles of gauges:
http://www.stewartwarnercanada.com/...ervice instructions for electrical gauges.PDF

Also see this thread that asks the same question about senders:
http://www.fordbarn.com/forum/showthread.php?p=373133#post373133

The sender is I think a 1/4 inch pipe thread and a normal pipe adapter should be all you need.
And by the way, the sender is basically a temperature dependent resistor and not a thermocouple which is a different animal.
 
BillM, thanks for that info, i bought a couple sw gauges a few weeks ago and now i know how to wire them without burning them up.
thanks again.
rich
 
russcc said:
2 questions. Picked up a pair of vintage 270 degree sweep 2" SW mechanical water temp temp gauges for the hot rod at Hershey. 1 needs a new temp sensor thermocouple.

1. Anyone have experience with a rebuilder on older SW gauges ?

2. Where do you find the brass 3/8 pipe to SW thermocouple adapter that fits in the flathead head ?

Thank you for the help Fordbarners
Click to expand...

Having the temp sensor replaced on a mechanical gauge is very expensive.
But, North Hollywood Speedometer does them.

http://www.nhspeedometer.com/
 
Oops, missed the fact that these are mechanical gauges. If you Google "bourdon tube repair", there is some repair info there.
 
I wanted SW gauges for a pickup. Not wings but old style. IMHO Stewart Warner has deteriorated since they were sold a while back. I ended up with several gauges before I found everything I needed. In my "collection" I have an old mechanical water temp unit I did not use. If you need any reference information PM me and I will try to help. I used this gauge when I did the cam break in and it works fine. I hooked it up in conjunction with a toggled electric unit to verify the reading and then took it off and put it back in the box. I believe the gauge line is filled with some type of transfer medium and if a leak occurs the gauge will not read correctly or at all.
 

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These guys have rebuilt old SW's for me: http://www.gaugeguys.com/

They can also get you the adapter nut for the head. Or your local NAPA can get the adapter as well. It's not just a pipe-threaded bushing, as there is a seat for the guage's bulb to sit against.
 
Hi 41 LFH

Are you interested in sellinh the SW mech water temp gauge ? If so,could you send me a picture of it so I can see if it is the same type I have. The ones I have are '60's vintage. 270 degree sweep, 2" mounting hole. Thanks, Russ, rtarbell@gis.net
 
Hi

If you are interested in selling the mech water temp, could you send me a photo so I can see if it is the same as the good one I have. It's 2" diameter, 270 degree sweep, 60's vintage. Thanks, Russ rtarbell@gis.net
 
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