here is the thing, i have a 1990 Rex si with a newly installed B18b1. it runs fine no smoke or anything. it has been converted over to obd1 and everything was done right. the only problem is it overheats once it runs for a little bit. the radiator has been taken to a radiator shop and pressure checked and everything, they said it was fine. thermostat is new for the third time, it seems to be flowing fine. the fan turns on too. me and my brother are running out of ideas and cant think of anything else to check. any ideas would be great. i am coming subaru to honda and dont really no much yet so this me trying to learn. thanks for your help in advance.

 

have you ran it with the cap off after the swap and let all the air work its way out of the system? Welcome back from cruise buddy

 

I did. I actually talked to my neighbor, who I just found out has been a Honda tech for 7 years and pointed out coolant line routing issues. My brother is going to check them tomorrow since I am in va and the car is in ga. I know this is wrong so hopefully this is the only issue.

I see that you have the ET rating badge as your avatar. Are you an ET? I am an ET2 in Norfolk at nctams lant. Small world huh

 

Look at the fan rotation direction. Have seen one wired to run backwards. The car overheated every time the fan turned on. Just something to look at.
What part of GA I'm around the Macon area.

 

We were on Prise together this is Barman I transfered from Lant last Dec. It was so great I terminated shore duty and went back to se 12 months early have fun with that place.

 

Oh barman what's up? Yea I think I have it figured out. Two Coolant nipples on the thermo housing are suppose to run to the heater core and the in intake mani, I have tied together. So that is an obvious issue and I am sure that will fix the problem, we will see.

Hondad the car is in Richmond hill right now. My brother does a lot of mustangs and stuff like that and I haven't had much practice on hondas. Thanks I will tell him to check that if the coolant line configuration doesn't do the trick.