OVERHEATING???
 

I have a 92 hatchback, which I just did my d16z6 swap on. I took care of all codes, and running a p28. I just ran it for the first time hard. I pushed as if I were racing about 6 times back to back. I came to a stop sign, and saw steam coming out. I got home and its just boiling in the over flow, and pushing out the steam, NO WATER spraying out, only steam.

I looked it over and I don't see anything wrong, and the fan does kick it. What should I check?

RE: OVERHEATING???
 

Did you bleed the coolant system really really well? Try bleeding the system again. Is the radiator is good condition yet?

RE: OVERHEATING???
 

How do you blled the system, what does it do?

RE: OVERHEATING???
 

Wow, okay if air gets into the coolant system, well, the system won't cool, thus overheating occurs.
Here's how to bleed the system:
https://www.hondacivicforum.com/m_396631/tm.htm

RE: OVERHEATING???
 

after the motor cooled down was your radiator still full? or anything left in the overflow tank? could be ya just overfilled the overflow...

what was your clusters TEMP gauge saying?

RE: OVERHEATING???
 

I will bleed th ystem tomorrow. It does not Idle irregular at all, but I really hope it helps the overheating... Would it be possible it was just ran to hard. (six times bak to back)?

RE: OVERHEATING???
 

You may want to check whether the radiator cap and thermostat are functioning properly.