rear end fluid worries - - Excellence in Motion
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post #1 of 5 (permalink) Old May 26th, 2008, 5:17 am Thread Starter
Join Date: Apr 2005
Location: dunedin, FL, USA
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rear end fluid worries

i drained and replaced my rear end fluid yesterday with some syn from the dealer. the magnetic drain plug had more metal on it than i liked. any way to inspect the gears back there. any way to check wear without a teardown? btw, what is the large plug on the side of the rear drive shaft? thanks
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post #2 of 5 (permalink) Old May 26th, 2008, 6:24 am
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There will probably always be some 'metal fur'. It's when it feels 'gritty' in your fingers you have to start looking further. Wear if any is less likely to be the drive gears and more likely to be the large bearing on the wheel shaft side.

Bike on center stand, grasp the wheel and try rocking it in 3 or 4 equal places. There should be no play.

I think the 'plug' you mentioned is the swingarm bearing cap. Don't go there without first reading a manual!

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post #3 of 5 (permalink) Old May 26th, 2008, 7:38 am
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How often do you change the oil in the rear drive and transmission?

Bruce C
'04 K1200RS Capri Blue(totaled)
2008 Triumph Sprint ST
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post #4 of 5 (permalink) Old May 26th, 2008, 11:32 am
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Location: Outside New Braunfels, TX, USA
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I always change the rear drive fluid when I change the oil. Simple enough. On the bricks, 12k is good for the tranny.

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post #5 of 5 (permalink) Old May 26th, 2008, 1:18 pm Thread Starter
Join Date: Apr 2005
Location: dunedin, FL, USA
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same with me

i change rear end about every other oil change, change tranny at 12k. tranny fluid always looks new. dealer sells me 75/140 bmw pure synthetic for both holes.
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