hope someone can help ! my f4i keeps boiling over i have new rad and thermostat works as i have tested it. i dont know what else to do the fan is permently on and theres no water in with the oil so thats a good sign any ideas

 

When its running, check that the coolant hoses feel hard - indicating that the system is actually pressuring itself. If nothings circulating, she's gonna boil up. If that's the case, may be worth looking at the water pump.

 

fan on all the time...... did you wire it up the right way? as in is it pulling the air through the rad and not trying to push it through? get a plastic bag and hold it to the rad, if the bag sticks to the rad then thats the right way.
do this and let me know, i will try n think of other things that could go wrong

 

Learn something there, I didn't even know you could wire it to go the other way

 

Dave it might be because the way its been rigged up.... like them hoses i was saying to you cos they connect differently? just a thought?

 

don't even know if it is possible but it is on some cars , is your thermostat facing in the right direction ?

did you get all the air out of your cooling system ?

does your cap hold the correct amount of pressure ?

do you run an over flow bottle ?

 

i have come accross this problem a few times
it is more likely to be the rad cap not holding any pressure as water boils around 100 degress it needs the seal on the rad cap to creat more pressure for a higher boiling point. try this if i dont work then get a jerry can of unleaded and a match

 

make shure there is no air in the system. Even a little bit will cause cooling problems. There should be a perge valuve near the lower radiator hose.

 

sorted the pipes got all correct ones now

also theres no air

 

will try tomorrow and ring ya

 

how do i know if the cap dont work anyway of testing or do i need to get another

 

yeah get another cap to try it, maybe the suzuki one will fit? If not, someone at your spot/where your riding has a honda

 

so far i found the rad caps off a car (honda/nissan) and most bikes fit so go down your local breakers yard and u will pic 1 up cheap as chips even go in find 1 stick it in ur pocket and walk out saying no mate could'nt find what i was looking for
i havent done that b4 onest

 

Yeah, but what if you get a 'over helpful guy' who asks what part your after.
Then you make up a rare as **** part on a rare as **** car, and he just happens to have one out back, an it ends up costing you 200 notes

 

thanks ghostie and coops you solved it i done the fan thing and changed the cap left it running for 30 mins and its ok cheers

 

Ghostie/Coops: 1
Awkward Bikes: 0

:YEAH

 

no probs m8 any time