Coolant running out ec300 2013
 

Hey,
Yesterday my last ride.
When my engine is on, the coolant is running out from the pipes.
When he was really hot
And he started to smoke a lot.
Where i have to start?


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If your engine was very hot, it was most likely boiling. Did the water and smoke (steam) come out from the pipe hanging down from the filler neck in the left radiator? That would be normal, as that pipe is the outlet used when pressure inside the radiator gets too high.

One thing to check would be the radiator cap. It is marked with its opening pressure. I think my cap is marked 1.8 (bar). If yours is marked with a lower pressure, replacing it with a 1.8 cap may improve the situation.

Hey andres,
No, the coolant had running out from the pipe connection to the right radiator!
And the smokes became from the exhaust,
More than usually. (Clown of white)


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Aha!
If there was white smoke, it seems like there is water entering the cylinder. Perhaps the o-rings between the head and cylinder is leaking? I would take off the head and have a look I think.

Ok, i would try it, but its the oil that making the white smoke? Its 2 stroke.
I heard that the oil is making the white smoke.
First time i am hearing that coolant cause white smoke.
And how its attached to the coolant running out from the pipe’s coonections?
Thanks buddy


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I think you guys talk past each other. I understood at least one part as he says water comes from the hose connecting the two radiators.... obviously on the RH side...

I'd also be checking head o-rings.

Or do you mean it's leaking out of the hose which connects to the radiator?
Then check to make sure it's tight and not loose, if still leaking then you may need to replace the hose as it make have a crack/split in it.

White exhaust means you have water (coolant) in it cause steam is a white colour.
Grey/blue/smokey colour is regular oil burning exhaust of a 2stroke.

Ok ,
i should turn on the engine tomorrow guys and send you a video. Thanks


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Ok guys, i looked at it now in a clear place.
1. The leaking is from the radiator. (Right one)
Very strange!! What happened to it? I didn’t fall , why it started to leak just like that?
): every riding i get a different problem in this bike!
Ok so for this i have to replace the right radiator.
The second problem is the smoke.
Do you think that this smoke is usual or unusual?
If you are right and it is the coolant that runs into the engine, then why before the leaking i check the coolant every time and it was at the top, at the same place ?
2. How dangerous is it to the engine if coolant gets in?
Thanks a lot
That's the video:

https://youtu.be/wYheZ329KbU


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Just a guess, and since you said you didn't fall over - but it looks like your radiator may have failed due to the exhaust pipe touching it and vibrating during use.
The constant vibrating from exhaust onto radiator may have worn through, or cracked a weld etc.

The exhaust smoke looks ok, if it's not using coolant then I wouldn't worry.
You'll have to fix the leaky radiator before you can confirm if it leaks coolant though.

Has your front pipe taken a hit and is now bent upward a little? Cause it shouldn't be touching the radiator.