Black ball of fine iron dust on FD drain plug? - BMW Luxury Touring Community
 
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post #1 of 8 Old Jun 8th, 2009, 9:10 pm Thread Starter
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Black ball of fine iron dust on FD drain plug?

I just changed my FD oil for the first time this past weekend. I had a black ball of fine metallic dust holding on to the drain plug magnet. It had the consistency of graphite lead in a pencil that was ground really fine like cinnamon. Is this the norm? The oil wasn't discolored much at all.

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Chad Albrecht
2002 Chartreuse Yellow and Black BMW K1200LT Tickets
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post #2 of 8 Old Jun 8th, 2009, 9:13 pm
 
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Re: Black ball of fine iron dust on FD drain plug?

Normal, keep oil clean and don't worry.. Yours is like the rest of ours are..............Pete
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post #3 of 8 Old Jun 8th, 2009, 9:15 pm
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Re: Black ball of fine iron dust on FD drain plug?

I'm like Pete. If the oil is clean and that's all you got. Change and ride.

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post #4 of 8 Old Jun 8th, 2009, 9:20 pm Thread Starter
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Re: Black ball of fine iron dust on FD drain plug?

Thanks guys, that's what I thought. I just needed someone to confirm it for me.

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Chad Albrecht
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post #5 of 8 Old Jun 8th, 2009, 10:01 pm
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Re: Black ball of fine iron dust on FD drain plug?

Don't worry about it. Final drives almost NEVER go out on LT's!

Jack Homesley
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post #6 of 8 Old Jun 8th, 2009, 10:06 pm
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Re: Black ball of fine iron dust on FD drain plug?

If you stir the plug in a cup of mineral spirits paint thinner you can then see if any larger shavings are attached. Black fuzzies are normal. Shiny chunks are not. The transmission plug is the same except that a few small chunks on the tranny plug is normal. Generally as long as it looks black you're ok.


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post #7 of 8 Old Jun 9th, 2009, 8:27 am
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Re: Black ball of fine iron dust on FD drain plug?

Completely normal. The first time I changed my FD fluid there was a pretty good pile of fines on the magnet. Since then I have been changing the fluid every 3-5K with synthetic and there have been virtually zero fines on the magnet.

Kevin

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post #8 of 8 Old Jun 9th, 2009, 2:01 pm
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Re: Black ball of fine iron dust on FD drain plug?

The LT has a final drive?

G-Glove
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