Hi, I have a 1994 ls with 101,*** on the original motor. I replaced the water pump (oem), radiator ( half size dual core aluminum), hoses, and running no thermostat, and the fan stays on all of the time. the car is still getting way to hot. i have to drive with the heat on. There is no white smoke coming out the tail pipe, the resivor stays full, and oil is fine. any suggestions. i need help!!!

 

Did you bleed your coolant system?

 

yes system is bled. I dont know what is is!!.

 

yes system is bled. could it be head gasket?

 

any one have an idea?

 

Is rad fan running in the right direction?
Why are you not using a full size rad?
Is there anything in front of the rad, [blockage]?

Is overheating a problem at all times, idling, stop and go city traffic, highway speads? 94

 

yea radiator fan is blowing the right way. the ac condensor is in front of the radiator. and it only over heats on long drives. within 30min is past the half way mark then i turn on the heat to cool it back down

 

When turning on the heat you are adding more heat exchange area, that would indicate the rad is not big enough by itself.
So again, why are you using only a 1/2 rad, why not install a full size dual or triple core, that would probably solve your problem.
I have a 94, and it came stock with a full size rad, I have since replaced it with a full size triple core as I autocross the car, [solo2] and have never had an overheating issue. 94

 

well the stock radiator is a full size single core. and the radiator i have is a half size dual core. isnt it the same thing if u think about it.

 

Even if the reservoir is full u need to make sure the rad is full when the car is cold
G/l with the half rad and running no therms

 

No it is not the same thing. 94

 

so do u guys think i should replace my radiator?

 

radiator was my first thought. Ditch the half pint

 

Absolutely, replace it with a double or triple core full size.
Something like this... http://www.yonaka.com/Acura_Integra_..._p/ymar003.htm a cheaper one... http://www.nolimitmotorsport.com/prod/MMRAD-INT-94 there are even cheaper ones out there but remember, you get what you pay for. 94

 

is there a reason for this? btw I had similar problem

read my post https://honda-tech.com/forums/acura-integra-6/temperature-still-hotter-side-2790831/

 

Strongly agree with FCM. Everytime i read his post he is on par with what I am thinking.