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Author Topic: Water in oil?  (Read 400 times)

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Water in oil?
« on: October 13, 2013, 06:43:04 pm »
Changed the oil on my new zilla.  The oil appeared to not be dark brown/black like ordinary spent oil, but instead a blackish gray.  Is this a sign of water in the oil or could it be something else?  If it is a sign of water, recommendations as to how to go about finding the source.  Otherwise, it runs great--maybe smokier than my 250, but otherwise great.  Could it be a crank seal?
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1985 LT250R stock, 1987 LT500R, and 1986 LT250R purchased in boxes, soon to be project.  Those plus a John Deere 440 Liquifire sled.

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Re: Water in oil?
« Reply #1 on: October 13, 2013, 07:03:55 pm »
Sometimes the oil will have a grey look to it when there are a lot of metal particles in it. Has it been a while since the last oil change? The bad crank seals I have experienced have produced excessive smoke, backfiring, revving engine, hard to tune carbie. If water happens to get in there from a leaky water pump seal or a bad head gasket the oil looks like a milkshake. Just curious what kind oil you use?
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Re: Water in oil?
« Reply #2 on: October 13, 2013, 07:20:01 pm »
I really don't know the history.  It was the first change since I bought it a week ago.  I don't know what the guy ran in it.  The oil was definitely not like a milkshake, if you mean white and frothy.  Any recommendation as to what oil to run in the trans?  As for the symptoms you described for the crank seals, all I've got is a little smoke and nothing else.  Seems to run strong and smooth.  Haven't messed with the carb yet since it runs so well.  It's not like I'm looking for a problem (aka big repair job), I just want to make sure she's not about to blow!
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1985 LT250R stock, 1987 LT500R, and 1986 LT250R purchased in boxes, soon to be project.  Those plus a John Deere 440 Liquifire sled.

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Re: Water in oil?
« Reply #3 on: October 13, 2013, 08:07:59 pm »
sounds normal to me, the clutch fibers make the oil look really bad. just change it very often.
i change mine about every 4 hrs and it still has the gray look.
to be sure its not anti-freeze check rad fluid level before and after your ride.
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life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sidays totally worn out shouting "HOLY SH*T...WHAT A RIDE!"

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Re: Water in oil?
« Reply #4 on: October 13, 2013, 08:25:02 pm »
For oil I use type f tran fluid. It gets cold in MN. Maybe not the best gear protection but the clutch plates seem to last longer.
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