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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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Old 10-18-2019, 03:11 AM
ec300 2013 ec300 2013 is offline
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Default 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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Old 10-18-2019, 05:00 AM
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Anders Anders is offline
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Quote:
Originally Posted by ec300 2013 View Post
Hey,
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?
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.
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Old 10-18-2019, 05:33 AM
ec300 2013 ec300 2013 is offline
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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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Old 10-18-2019, 05:55 AM
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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.
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Anders

"So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie)

2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper
2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper
1998 Bimota Supermono
1986 Duc Mille S2
1975 Guzzi sidecar hack
1961 Morini Corsaro 125
etc
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Old 10-18-2019, 08:29 AM
ec300 2013 ec300 2013 is offline
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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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Old 10-18-2019, 09:42 AM
Doc Brown Doc Brown is offline
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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...
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Old 10-19-2019, 12:59 AM
Pygmygod Pygmygod is offline
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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.
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Old 10-19-2019, 11:33 AM
ec300 2013 ec300 2013 is offline
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Ok ,
i should turn on the engine tomorrow guys and send you a video. Thanks


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Old 10-20-2019, 08:12 AM
ec300 2013 ec300 2013 is offline
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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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Last edited by ec300 2013; 10-20-2019 at 09:02 AM.
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Old 10-20-2019, 08:47 AM
Pygmygod Pygmygod is offline
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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.
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