Yeah, something new!!! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 1 (permalink) Old 09-11-2016, 06:59 PM Thread Starter
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Yeah, something new!!!

Even though the bike had no problems (except the broken tie rod) when we tore her down I decided to do “preventative maintenance” i.e. replace the “mechanical seal” Kawasaki part No. 49063-1057 Mechanical Seal. Everything looked fine and except for some (not much) buildup on the face of the impeller when I pulled the shaft out I saw no reason to disassemble the impeller and replace the 0-ring. I put the assembly, impeller down into about ½ inch of Evapo-rust to clean it up overnight. I then waited for the arrival of the seal and installed it, as per the Clymer’s book, using some straight anti-freeze as lubricant. It spun alright (not as freely as I would have expected with a lithium based lube, but OK.

Since we buttoned her up last weekend there have been a few drops of anti-freeze out of the weep hole. Less than would puddle up in a coffee can lid. However today when I drained the oil to get rid of the moly lube used in assembly the first thing I saw was not oil. My son grabbed a can top from a brake cleaner can and I caught some of it. The rest went into a clear hard plastic container. After a tried and true chemical analysis (taste test) it was confirmed to be anti-freeze. I am waiting to see how the whole engine drain oil looks but wondered if anyone else has had a problem with this seal. I know there has been discussion in the past regarding the 2 part nature of this seal but to me it looked exactly like what I removed. So my question is should I replace this seal, will it “wear in and seal up” or is there any thing I may have missed? I/we replaced all the o-rings, even going as far as getting some that were not from Harbor Freight. because they fit better.
All ideas and attitudes welcome.
Thanks

No Brain - No Pain. I measure a man by the good he does for others, not his mistakes.
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