Operating temp question

[Pinesdune]

https://www.amazon.com/gp/product/B01K72SBVU/?tag=atomicindus08-20

Pinesdune - this is what got me thinking about it. Hope the link works. I bent the sensor to fit in the radiator, but working on a smaller version. Also see the need for the infrared version.

The link works, thanks. Lots of applications for this kind of sensor set up, coolant/oil/exhaust temps , permanent or "diagnostic" mounting , motorcycle, car, ag, the list goes on. Have fun with the project!


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[Synchro909]

A little hijacking here! I have just now returned from a drive of about 50 miles and I noticed the temp go from about 140-150 (normal for that car - no T/stat) to 200 for a short time, then drop very quickly back to where it was. This has me puzzled.
Have any of you seen this or can explain it?

 

[Brendan]

currentlly I just sit the phone on the seat and glance at it. Could put it in a windshield mount, etc.

thats a bad idea

 

[stouchton]

thats a bad idea

Brendan - can you elaborate or is it simply eyes must be on the road at all times?

 

[Dick Steinkamp]

thats a bad idea

Full disclosure. I have been known to glance down at my speedometer on occasion...even my fuel gauge and ammeter.

 

[Tom Wesenberg]

A little hijacking here! I have just now returned from a drive of about 50 miles and I noticed the temp go from about 140-150 (normal for that car - no T/stat) to 200 for a short time, then drop very quickly back to where it was. This has me puzzled.
Have any of you seen this or can explain it?

Did you move the spark lever?

I can't think of any other thing to make this happen other than a bad head gasket or crack letting combustion into the coolant.

 

[Dick Steinkamp]

A little hijacking here! I have just now returned from a drive of about 50 miles and I noticed the temp go from about 140-150 (normal for that car - no T/stat) to 200 for a short time, then drop very quickly back to where it was. This has me puzzled.
Have any of you seen this or can explain it?

If you have a T-stat, maybe it stuck close for a bit?

 

[Big hammer]

A little hijacking here! I have just now returned from a drive of about 50 miles and I noticed the temp go from about 140-150 (normal for that car - no T/stat) to 200 for a short time, then drop very quickly back to where it was. This has me puzzled.
Have any of you seen this or can explain it?

Some road debris blocked the radiator?

 

[Y-Blockhead]

A little hijacking here! I have just now returned from a drive of about 50 miles and I noticed the temp go from about 140-150 (normal for that car - no T/stat) to 200 for a short time, then drop very quickly back to where it was. This has me puzzled.
Have any of you seen this or can explain it?

If you have a T-stat, maybe it stuck close for a bit?

My engine "hunts" for the set temperature when the T-Stat first opens but since you don't have a thermostat I doubt that's your problem.

Full disclosure. I have been known to glance down at my speedometer on occasion...even my fuel gauge and ammeter.

Too funny...

 

[Synchro909]

Did you move the spark lever?

I can't think of any other thing to make this happen other than a bad head gasket or crack letting combustion into the coolant.

Thanks Bill, I didn't touch the timing lever. The motor is a diamond B block so being ANY kind of B motor, a crack is on the cards but I doubt it. Next time I'm out, I will open the rad cap, check for bubbles and smell.

 

[steve s]

My temperature experience mirrors BarkleyDave's with a 160 stat but a new Brassworks performance radiator and not so much hilly.