Radiator Water Tank

[dfactor]

hi guys
ive own an hyundai elantra 94 and ive converted the engine to vr4 rs.
i have this problem but i dont know either its normal or beyond.
everytime ive travel short or long distance i always wondering theres a boiling sound coming from under my hood. when i pop it up and found that the boiling sound coimng from the radiator reserve tank. Oh gosh is it so damn hot? im not using any coolant just straight water and it boil !!!
The temp is normal but the water so damn hot

to anyone can advice me on this problem...... is it normal? before the hyundai ive own kancil turbo but never happen like this

thanks

 

[limau]

check ur radiator cap.maybe something wrong with it...can't hold a pressure inside the radiator so blow all the hot water into reserve tank.

 

[dfactor]

k thanks mate
it seems also that my cap wouldnt sit straight
will check again or try to replace it with others
thanks again

 

[KeonG]

so how is everything? ur problem settle? U gotta check whether the tank got stuck or leak or not ler.. veery important oh.. ;)