Introduction and Overheating (long)

[ChattanoogaJSB]

[ChattanoogaJSB]

[ChattanoogaJSB]

Mine-

[ChattanoogaJSB]

Us on the way home!

[efnfast]

I'm worried the orange coolant has muddied things up.

[TX '90 ZR1]

Originally Posted by ChattanoogaJSB

Analog vs digital at 230 degrees actual

Similar to what my IR gun shows on engine

I notice in the pic that the oil temp is pretty low on the guage for a water temp like you have. The oil temp guage is probably not real accurate either, but you might want to use actual oil temp as a cross reference.
By the way, NICE LOOKING CAR!!

[carter200]

Originally Posted by ChattanoogaJSB

Us on the way home!

There is the problem.... you are upside down. Car cools better when wheels are on the ground

[efnfast]

They must have the "Red Button" from men in black

[DRM500RUBYZR-1]

Originally Posted by ChattanoogaJSB

Wow! So many welcoming and helpful replies. Let me try and address a few comments.

1) yes I’ve read most of the forum stickies on this topic but at different times; I will revisit

2) the orange coolant seems to gum up more than the green, we are trying to find out if we have a photo from our inspection that shows it. I do not but my friend might. That’s all academic now but it might point toward being gummed up.

3) I do tend to believe it’s an obstructed radiator, I’ll have to find out what I can leave in place on removal. Hopefully the ac condenser and oil cooler can stay plumbed.

4) my friend drove it today. In just ten minutes of hilly driving (not up the mountain) it peaked at 110 C / 230 F with one fan on. Ac brings on both fans. He did the temp display procedure.

5) I will double check the plugs for any visible “steam cleaning”

6) I still owe you guys photos!

7) anything I missed replying to I will address after dinner and my thanks again!

Benton

Benton,
What was the ambient temperature during your drive?


230 is not alarming.


The fact that it held below 240 is a very good sign, as fan 1 was controlling it fine.


The oil temp may not be too far off if the coolant was at 230, but yes a tad low. Remember, all of those gauges are non linear.


Do all the checks that were suggested, as 230 is a bit high, but certainly not where the gauge was suggesting.


As said NICE car!


Great to see the smiles!!!!


Smiles are standard and excessive in this car!


Marty

[jss06c6]

"Note when it got hot the overflow was simply ambient temperature and no change of level. Overflow still never seems to move and we have tried two caps."

I would make sure you don't have air trapped in the system.. need to "burp" the system when you swap coolant.. just a thought..

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