this is my post https://honda-tech.com/zerothread?id=164221

and the info is inside, I don't under stand what happened. Maybe you guys can help me figure it out?

 

Have you tried bleeding the system?? You might have air trapped in there. If it was bubbling all the time I would say a blown head gasket but you said it onyl does it when it gets pretty warm. Just my 2 cents

 

check to make sure u didnt overfill it i guess...check the cap on the radiator, also the temp sensors go so i would check that. what else...i dunno man r u hoses all good? sorry i am sure someone can help....good luck...tuned

 

It has been fine for ever I abuse it all the time, but it hapened right after I did to consecutive runs to 93 mph. Does anyone think there is to much water.

 

in my personal experience... most common overheat causes
1. lack of coolant due to leak
2. thermostat failure
3. radiator cap failure
4. radiator fan failure...either bacuase of fan motor or switch
5. lack of coolant circulation...caused by clogged hoses or radiator
6. water pump failure....sometimes those fins are rusted away

the fact that you said it was full eliminates #1...not showing hot on the gauge (which isn't always a good indicator) leads away from #2 i think #3
remember that the car isn't in front of me and i am just taking guesses

 

Did it over heat or was water just going into the over flow bottle?? When the coolent gets hot it expands and it has to go somewhere, so it gets pushed into the overflow bottle. Also water is a better conductor of heat so you should run more water then antifreeze. If you live where it does not freeze then run water and product called Water Wetter it's make by Redline. Or just a little antifreeze. Hope that helps.

 

a mixture of water and antifreeze was boiling hot out of the overflow resevior.

 

[Modified by JALOP B16, 7:36 AM 4/15/2002]

 

Possibly replace your radiator cap, and past that don't worry about it. You probably just had a little too much in the overflow container and what bled off of the system at high rpms overflowed the tank. The most important thing is that your car doesn't over heat, and as long as that's not an issue you really don't have anything to worry about.