Technical Who knows about elctrical temp sensors?

I need to find a temp sensor to make a stock gauge in a 73 Corvette work.

The stock Sender is 1/2" NPT and rated at 72-88 Ohms Resistance At 220 Deg F according to Napa.

I need the same sender but with 3/8" NPT threads because of the heads on this blueprint motor. (I'm really trying to avoid putting the sender in the intake manifold)

Any idea on a suitable sender?, or combination of sender and inline resistor?

I apologize if this isn't on topic, but I'm really in a bind, the tech guys at Standard, and BWD couldn't help me

-Rich

 

I had that problem once on an old truck....I took a Standard TS-6 and put it in my lathe, and made is smaller. Works fine.

 

tap the head to 1/2" ?

 

Would an adapter from your local hardware plumbing section work? I would think the only issue would be if it doesn't seat all the way....

 

Dig into napa's "big book" for one that fits your parameters

 

Here's a thread on the same issue. Towards the bottom they mention a Volvo sender?

http://www.corvetteactioncenter.com...ance/27451-need-smaller-temp-sender-71-a.html

 

yeah, I went through all the other options, and the fifteen minutes I spent on the lathe were well well worth the effort.

 

looked for a thread adapter kit? local speed shop, Summit Racing, Jeg's. hardware stuff has wrong threads

 

The end of the sender kind of wants to be in the coolant, and a thread adapter will put the sender pretty far away from it.

 

not if you get correct adapter - not everyone has a lathe

 

kind of hard to get an adapter that will allow a part that is bigger than the hole, to fit into the hole. Hence my suggestion to make the part smaller, so it fits in the hole.

I know half a dozen guys with lathes, in the small town I live in.

 

Is your reluctance to the manifold location due to the location or do you have to modify the manifold?
How about a thermostat housing, mounted sender unit . GM used that location for a few years. I have also seen one mounted in the water pump but not sure how well it worked.
I have always had better result with mounting them in the intake manifold.

 

A lot of Chevy trucks have the sensor mounted in the top of the thermostat housing.

 

http://www.amazon.com/Borg-Warner-WT510-Temperature-Sensor/dp/compatibility-chart/B000BZFHZC
Try this and see. It is 72-88 ohms at 220 I believe and 3/8" MPT

 

Standard TS75. Says in the Standard book that it has a 5/8 thread, and notice it has a tapered seat, just like it's designed to go in a hole for a mechanical temp gauge. Which it is...since the older Volvos have a mechanical temp gauge. Might could make it work, if you use lots of sealer?

 

That's the one mentioned in the link I posted. Seems like vette people have had good luck with it.

 

Save ten bucks

http://www.rockauto.com/catalog/x,carcode,1498768,parttype,4748

 

Ok, I have the Volvo sender on the way. Thanks alot guys

-Rich

 

Let us know how the threads fit.

 

UNF is not pipe thread. Not a good match. Still being as it's brass, it might mangle itself to a seal. Or break.
Not like I haven't seen something like this attempted before...fail miserably...

Let us know how this works for you.