What's this white stuff leaking!?!? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
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post #1 of 15 (permalink) Old 04-09-2017, 08:45 PM Thread Starter
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What's this white stuff leaking!?!?

I finally got the 86 on the road today and am pretty happy overall but I found a white milky leak from the tube going from between the base of the cylinders to the case and I have no idea what it is. I just changed the oil and both the old and new look great. The coolent looks full and good. What is this stuff? It gets thick when cool almost like the spray white lithium Greese. Please any insight will be great!
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post #2 of 15 (permalink) Old 04-10-2017, 10:27 AM
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Think I'd need a closer shot...

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post #3 of 15 (permalink) Old 04-10-2017, 01:06 PM
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That is a coolant tube. You really shouldn't be getting any white greasey stuff from it. Maybe some assembly grease was trapped somewhere and worked it's way loose. Weird...

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post #4 of 15 (permalink) Old 04-10-2017, 01:17 PM Thread Starter
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Here is a closer shot. The first 15 mile trip is when I took this picture. I wiped it off and rode home and there wasn't any more or at least not enough to run down the case? I guess I'll chalk it up to old wax or polish someone left on it years ago? Fluids looked good still this morning.
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post #5 of 15 (permalink) Old 04-10-2017, 01:52 PM
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Originally Posted by Dan Butts View Post
Here is a closer shot. The first 15 mile trip is when I took this picture. I wiped it off and rode home and there wasn't any more or at least not enough to run down the case? I guess I'll chalk it up to old wax or polish someone left on it years ago? Fluids looked good still this morning.
Maybe some lube that was used on the throttle cables that got warm, dripped into the V portion of the engine, and ran down the side. Sounds likely.
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post #6 of 15 (permalink) Old 04-10-2017, 03:39 PM Thread Starter
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yea I'm hoping something like that. it would have had to already be on or around the tube because when i had the carbs off to rejet and clean i cleaned between the cylinders pretty well.
i guess ill just be thankful its not oil in the coolest and move on. Thanks for not coming on and telling me its some well known issue that puts the bike back under the knife!
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post #7 of 15 (permalink) Old 04-11-2017, 11:37 AM
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First I did not read the post. I saw, "What is this white stuff leaking?" posted by Dan Butts and I'm thinkin...hmmm

OMG, then knifemaker comes in with, "I think I need a closer shot."

ThTanner, "Maybe some lube..."


**** fellas, what is goin on here? Is this pizza like code or something!
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post #8 of 15 (permalink) Old 04-11-2017, 11:58 AM Thread Starter
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lol Hey, glad i got your attention! always a risk using my name on the internet

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post #9 of 15 (permalink) Old 04-12-2017, 09:06 AM
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YOu shold change your name to Dem!

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post #10 of 15 (permalink) Old 04-12-2017, 10:19 AM
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that metal pipe is a coolant pipe. there are 0-rings that seal it, and they can fail.

bad news, you gotta pull right engine cover to replace the o-rings (unless someone has found a different way to do it).

I had to replace mine, twice in one day (once when I changed the gasket for right cover, once when I realized I split them when installing right side cover). that wasnt a good day for me. Imagine getting everything together, new gaskets installed, fill it with oil, then start filling with coolant, only to see it pour out of the pipe due to the torn o-rings... I didnt even get the bike started. had to pull it all apart again, drain the fresh oil, and re-do the work.
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