PDA

View Full Version : Steam coming off radiator


HondaRider250
03-04-2006, 12:47 PM
I just got evans coolant today. i flushed it with prep fluid and did everything im supposed to. after i ride it and rev it, steam comes outta the radiator near the bottom where it goes trough the hose and into the engine. its never done this until today when i put the evans in it. i thought my fan would kick on if my coolant got too hot, and it hasnt kicked on once. has anyone ever had any of this happen? thanks in advance
Scro
03-04-2006, 01:03 PM
Did you take the hose off to drain? If so, did you make sure it was tight when you put it back together?
HondaRider250
03-04-2006, 01:15 PM
yes i took it off. im not sure if i tightened it when i ran it to temp or not. its tightened right now tho and it steams still
Scro
03-04-2006, 01:31 PM
Well, the different type fluid is not causing it. It's got to be something that you changed. Did you put the correct amount in the overflow?
HondaRider250
03-04-2006, 03:25 PM
now i did lol. that was the problem. i only filled the radiator and didnt fill the overflow. thanks for the help
Scro
03-04-2006, 03:32 PM
;)
HondaRider250
03-05-2006, 02:51 PM
OK i take that back. i rode for about a half hour today and the radiator was full of steam. i think the coolant is getting wayyyyyy too hot and my fan has never kicked on. i think my thermostat isnt working...does anyone know what the problem might be?
tar
03-05-2006, 04:46 PM
the same sort of thing happened to my cousin but he had to buy a whole new radiator b/c somthing rubbed a hole in it

it could be a sensor or something
HondaRider250
03-05-2006, 05:47 PM
holy ****...i dont got money for a new radiator...does he know what caused the hole?
Scro
03-10-2006, 11:26 AM
Originally posted by HondaRider250
holy ****...i dont got money for a new radiator...does he know what caused the hole?

Check where the fan is. If the bracket has ever been bent or anything, the fan may be touching the radiator. This may have caused a hole, or the fan itself may be hung on the radiator not allowing it to turn.

The thermostat may also be bad, as you said.

Do this.

When the bike COOL, take the radiator cap off and crank it up. After a while, you should see the coolant start to circulate.Don't run it for a long time though! It will start to overflow if you do.

If it is not circulating, the impeller on the motor may be bad. It it is, then it's probably a thermostat sensor or something along those lines.
HondaRider250
03-10-2006, 04:57 PM
how can i see the coolant circulating tho? i cant really see inside the radiator when i take the cap off
tar
03-11-2006, 02:23 PM
I think it was his fender bracket that rubbed a hole in his radiator. It rattled loose while riding and i guess it just kept rubbing until it woar a hole. check that
42F67N
03-11-2006, 03:37 PM
I did the evans swap today and my fan came on,u sure u didnt just spill old fluid on parts that get hot?