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Cooling Systems Cooling Systems - Radiators, Water Pumps, Fans, Coolant, etc.


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June 2nd, 2015, 06:00 PM   #11
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You could plug the hole. Then watch to make sure that your oil isn't going milky....I'm not sure if this is great advice. As long as it isn't building pressure in there, it shouldn't push in to the oil. There are two seals at mission cycle for me that I haven't picked up yet. I suppose you could pick up one if you are in a pinch they are the berg seals. Hoping to get out there tomorrow if time permits.
My trouble was the oil o ring but I decided to order seals as well. Berg is sitting in the shop in s/m trim waiting for the seals.
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June 3rd, 2015, 01:19 AM   #12
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What about with shaft pass into seal? It may be wear?
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June 3rd, 2015, 01:05 PM   #13
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Thanks, nice of you to offer. I will hold off until my parts come in. Not in a huge rush. I may just ride it with the leaking seal to see if things (somehow) improve. I may also switch to water to see if it is the Engine Ice coolant that doesn't like to seal.

Originally Posted by Kayeffess View Post
You could plug the hole. Then watch to make sure that your oil isn't going milky....I'm not sure if this is great advice. As long as it isn't building pressure in there, it shouldn't push in to the oil. There are two seals at mission cycle for me that I haven't picked up yet. I suppose you could pick up one if you are in a pinch they are the berg seals. Hoping to get out there tomorrow if time permits.
My trouble was the oil o ring but I decided to order seals as well. Berg is sitting in the shop in s/m trim waiting for the seals.
It might be worn, but it didn't look bad at all when the engine was disassembled. It's tough to inspect now without taking the side case off.

Originally Posted by Blamir View Post
What about with shaft pass into seal? It may be wear?
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June 6th, 2015, 07:37 AM   #14
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Update: I haven't changed anything, but the leak has basically stopped. It seems that the leak only occurs when the coolant is really hot. For example, when I was slowly riding through muddy trails today (looking for the mirror I broke off the handlebars), the leak came back... not violently, but it was leaking.

When I got up to speed, the leak stopped. I believe that the Engine Ice coolant that I am using has some sort of chemical composition that causes it to leak past the seal when it gets hot (perhaps it gets really "thin").

I may switch to distilled water and see if it leaks or not.

At any rate, I bought 3 different seals. The KTM 65cc bike one, the Kawasaki one, and an SKF one. Not sure if I will touch it now since the leak is very minor and a new seal may not change much.

I found this on Advrider: ADVrider - View Single Post - The Husaberg Thread

I rode 40 km today, road and trails... will check coolant level when the bike cools off.
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June 6th, 2015, 11:16 PM   #15
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I use a fine sandpaper like p1000 and polish the shaft a bit before assembling, but it will be easier with the casing cover off.
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June 10th, 2015, 05:40 PM   #16
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Ive never seen anyone replace the seal without removing the cover. But I guess its being done. There would be a higher chance of damage to the new seal driving it in over the shaft. And removing the old seal is a snap with the cover off , just driving it out from the inside. Do it right and it may get you another 100hrs
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June 11th, 2015, 12:03 AM   #17
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FWIW I Dremeled a couple (maybe 3) small radial grooves in the housing last time I had it off so that its easy to prise the water pump seal out. No real reason why it can't be done in situ either I guess, just give it a good flush.
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June 11th, 2015, 02:51 AM   #18
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Yes, I read this somewhere else. Do you have any photos or a diagram? How does this facilitate removal (as in, is it large enough to grab with needle-nosed pliers, or do you attack it from the die with a screw driver, etc.)?

Originally Posted by steve View Post
FWIW I Dremeled a couple (maybe 3) small radial grooves in the housing last time I had it off so that its easy to prise the water pump seal out. No real reason why it can't be done in situ either I guess, just give it a good flush.
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June 11th, 2015, 05:09 AM   #19
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guys, stop bothering yourselves with minor weephole leaks, its waste of energy. if you are ready to change the water seal after every ride, u had better to fill the rad with water, it is cheap and is 100% environmentally friendly. if you are more satisfied with the coolant level in the rad than with the seal function, its a bad idea to change the seal, because there is something wrong with YOU!
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June 11th, 2015, 02:49 PM   #20
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Originally Posted by jmscrttndn View Post
Yes, I read this somewhere else. Do you have any photos or a diagram? How does this facilitate removal (as in, is it large enough to grab with needle-nosed pliers, or do you attack it from the die with a screw driver, etc.)?
No pics unfortunately. I'm now much better at photo documenting my stuff, so next time

The grooves I made are just big enough to get a pointy scribe type tool in to deform the seal and then lever it out. Not deep enough to effect the seal's sealing in the housing, maybe 1 mm or less.
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