Overheating hot to cold quickly

[vic008]

Going home the other day and temp climbed to about 100. Crept on in. Question; should I have stopped and cleaned the water trap (that was clogged) then, or do you wait for the engine to cool down first. Am thinking superhot engine suddenly having cold water in it. Thanks.

 

[LittleSister]

To be honest, I don't know, but I would have thought that overheating much more likely to cause damage than temp gradient between engine and coolant being a bit greater than normal.

 

[PaulRainbow]

If it's raw water cooled i'd let it cool a little. If fresh water cooled i wouldn't bother.

 

[RichardS]

If it's raw water cooled i'd let it cool a little. If fresh water cooled i wouldn't bother.

+1

Richard

 

[essexboy]

Ideally let it cool a bit but I would not loose any sleep over it, I used to test engines for a large manufacturer in Essex (Guess who)
one test was to run engines full load / full speed for 55 mins the shut down to idle with full cooling for 5 mins. A 1000 hours of that
soon found any weakness in the system !l