Copper flakes in oil pan - Kawasaki ZX-10R.net
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post #1 of 57 Old 02-13-2016, 05:10 PM Thread Starter
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Copper flakes in oil pan

Help, my engine produces "gold flakes"!
Removed today oil pan from my Gen4 engine just to check if all looks good from the botton and saw quite many copper flakes in oil pan!?
Made a photo of it. Has anyone had similar issue?

There are no larger pieces, only flat flakes (0.5 to 1.5mm) you see on picture.
Did cut open the oil filter and found copper dust there too.
Upwards from oil pan everything is very clean and cannot see any debries there.

Where can it come from?

I can exclude clutch and cylinder head, it is off and valve clearances were good.
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post #2 of 57 Old 02-13-2016, 05:14 PM
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Bottom end bearings. I'd replace them NOW before you spin one and need a crank/head/valves/oil pump. It's a bit expensive to have them done but it's 1/2 the price of repairing the motor after the fact. Gives you an excuse to have the crank lightened too :)
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post #3 of 57 Old 02-13-2016, 05:17 PM
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Yup. "Badness has occurred." Pull it apart now, before it does more damage.

If you find out that a rod bearing has gone bad (which is likely), measure the journal and the affected rod very carefully for out-of-round or out-of-tolerance.


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post #4 of 57 Old 02-13-2016, 05:30 PM Thread Starter
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Shit, I was hoping something from gerbox area. Did not know crank/conrod bearing produce copper color.
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post #5 of 57 Old 02-13-2016, 06:01 PM
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only place it comes from.
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post #6 of 57 Old 02-13-2016, 06:11 PM
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Crank main or rod bearings are the only 2 places for them to come from.
Do loke what was said earlier and pull the crank now or you will trash the motor.

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post #7 of 57 Old 02-13-2016, 06:49 PM Thread Starter
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Thank you for info. Will split the crankcase next week.
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post #8 of 57 Old 02-13-2016, 07:14 PM
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What everyone else said. Not good and looking at a big repair bill. Crank will need repair or replacement if the bearings are starting to shred. I'm just getting my crank back and will be starting the rebuild soon. It sucks.

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post #9 of 57 Old 02-13-2016, 09:08 PM
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Quote:
Originally Posted by Carlos76 View Post
Help, my engine produces "gold flakes"!
Removed today oil pan from my Gen4 engine just to check if all looks good from the botton and saw quite many copper flakes in oil pan!?
Made a photo of it. Has anyone had similar issue?

There are no larger pieces, only flat flakes (0.5 to 1.5mm) you see on picture.
Did cut open the oil filter and found copper dust there too.
Upwards from oil pan everything is very clean and cannot see any debries there.

Where can it come from?

I can exclude clutch and cylinder head, it is off and valve clearances were good.

Wow, how many miles on that?
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post #10 of 57 Old 02-13-2016, 11:00 PM
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