Hey, I have a 95 civic ex d16z6. I put a t3/t4 turbo on it this past spring and recently I noticed that my coolant over flow can is filling up. I put the extra coolant back in the radiator and had the over flow can between min and max and it did it again. At this point I replaced the thermostat thinking that was the problem and it still does it just not as fast it takes longer for the can to fill up. My friend said it was my head gasket but im not loosing any anti freeze and i dont have any white smoke. He also said to replace the radiator cap to because that might not be getting a good seal. If anyone has had this problem or knows whats goin on PLEASE HELP. THANKS

 

replace your rad. cap first.

if it keeps doing it it is your head gasket. you are lifting the head under boost and its pushing pressure into the coolant and thats pushing it into the overflow

 

yup pretty much what computerjlt said...

i had the same prob and symtoms... ended up being a head gasket.

 

this sounds ghetto, but I still drive it this wayut a piece of wire under the ramp to the radiator cap to give it a tighter seal. I had the same problem for 3months until I put 2+2 together.

 

is the coolant like a dirty green almost brown?