Temp gauge installation

I don't think it gets better than this, Vintage Precision housing with Thermostat in stalled, probe for temp gauge running through junction box, Clean, and neat!
 

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I have the same set-up that Mark has. The VP T-stat housing has 2 outlets on it. I use one for the temp gauge and the other for my heater water.
 
How much temp drop should a good radiator measure? I suspect the one i am working on is shot. It drops only about ten degrees when measured with an hand held IR measuring tool.. I am thinking 20 degrees might be a target?
 
Mark and Carl i run what you guys do plus you could hook a a water heater easier as well with our setup.
 
How much temp drop should a good radiator measure? I suspect the one i am working on is shot. It drops only about ten degrees when measured with an hand held IR measuring tool.. I am thinking 20 degrees might be a target?

My original 1928 radiator drops the temp about 20 degrees. I back flushed my cooling system by using a sump pump, after I used vinegar for a month. Vinegar made a mess, and next time I'll use RUST911.
 
Chief always chose the L/R side of the cylinder head. Study a head & you'll find a good spot to drill & tap. That was a common spot on MANY Flathead Engines.
Bill W.
 
My A had the breather vent tube routed along and inside of the left frame rail under the drivers seat instead of below the car to take advantage of the draft. I still wonder about that.
 
I plan to install a lower water inlet with a port to install a water temp gauge. . . seems pretty easy. Looking for any advice/guidance.

JoeMarine, I see this thread is a couple of months old but when selecting a gauge I prefer the Mechanical SW 270° sweep gauges. Easier for me to read.

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My A had the breather vent tube routed along and inside of the left frame rail under the drivers seat instead of below the car to take advantage of the draft. I still wonder about that.

Yes, you want the end of the tube 'in the breeze' below the car to create a low pressure area at the tube end to help pull the 'Bad Stuff" (water and unburned hydrocarbons) out of the crankcase. Better known as a "Road Draft Tube".

Also helps keep the left side of your engine compartment clean.
 
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I have a temp gauge on all 3 of my Model As. I put the threaded fitting in the outlet myself because I don't like the idea of having it come out the side like the ones the vendors flog. Once the sensor is installed, it makes getting to the head nut directly under it, difficult. Mine come out of the back of the outlet.
 
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