Has anyone successfully installed a manual temperature gage into a model t engine block? If so where and how did you install the sensor in the engine block.
I haven't done it myself, but I've seen it done on several cars. Usually the most successful and accurate place is in the bottom of the front water outlet on the brass radiator cars and on the side for the later cars with the more vertical outlets.
Here is a good pic.
Seems to me without a thermostat you may as well use a Motometer, as the result will be nearly the same. I would put a gauge at the back of the block.
I use a 180 thermostat, and only see red in the motometer when idling for some minutes, because the engine has no fan.
Most old time manual temp gages measure the coolant, so placing in the block would be hard on a T to get the average spot to measure. The cyl head may be a good spot, so why not at the outlet of the cyl head as I did, easy to drill/tap for sensor in that place.
Originally, I used the Model A type water inlet that had a tapped boss, but found in the waterpump-less T, the reading stayed cool as one would expect, never above 90 degrees. So I moved it to the water outlet, that reads the coolant fine there.
Reading when warmed-up with sensor in the wrong spot of the water inlet, coolant is already cooled!
Cutaway shows the coolant cavity are mostly in the head, how would you get to the little cavity in the blocks that surround each cylinder?
These thermal images posted a while back show the head is same temp as the block if not warmer, and the water outlet is the place to put a gage.
Locate sensor here:
and its full to watch the temp gage go up as you run fast. Normally the gage reads 180 when the engine is warmed up and running with light load and say around 28-30mph. But when the pull down on the 'ears' and fly along with modern traffic at say 45mph, the temp goes to 200 or a bit more, then when you slow back down, the temp does too, back to 190 then 180 when at the 'normal' Ford road speed. Plus you temp goes back down too, as running real fast in the Ford raises my heart rate!