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Thread: 2007 R1200RT transmission output seal DIY?

  1. #16
    IBA #44567 Ken F's Avatar
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    good call!

    Ken
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  2. #17
    Plasterman tgf429's Avatar
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    How can you tell if the transmission or the final drive seal is the one leaking. My rear boot showed signs of leaking and there is a puddle of fluid inside the swing arm. Do I have to take the swing arm off to tell if the front deal is the culprit?

  3. #18
    Plasterman tgf429's Avatar
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    What do you think?
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  4. #19
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    This is an older thread- may take until this evening for the "regulars" to get back on line to give you an opinion.
    OM
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  5. #20
    Plasterman tgf429's Avatar
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    Confirmed, transmission seal. Should I replace the old final drive seal since I have it torn apart ? Any suggestions on how to clean up the housing without damaging the bearings? Should I replace the boots while I am at it?

    Thanks

    Tom
    Last edited by tgf429; 06-07-2015 at 11:43 PM.

  6. #21
    Plasterman tgf429's Avatar
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    What is the best way to clean out the housing?
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  7. #22
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    Quote Originally Posted by tgf429 View Post
    What is the best way to clean out the housing?
    A lint free cloth/available at Walmart/,a cup of gasoline 87 octane is good enough.Submerge the cloth into gasoline,and yust simply whipe it out.Please don't smoke at that time!!

    hibz

  8. #23
    Registered User natrab's Avatar
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    Digging up this old thread as this leak just cropped up on my former 2013 R1200RT (now my wife's main ride). Noticed oil weeping from the boot between the transmission and swing arm. It was hard to tell from the smell if it was transmission oil and so I took the right panels off and opened the trans filler to find it did look a bit low. I just paid the dealer about 3k miles ago to do the clutch, so they were the last ones to fill the transmission, so it is hard to know if they filled it to the proper level or not (or may have over-filled it....).

    Anyways, I took the swing arm off and I found the missing trans oil as it poured out of the swing arm when I set it down. The seal sure does seem to be the source of the leak and I'm trying to figure out the correct part number to order. The diagram in the microfiche is difficult to interpret since it's looking at the transmission from the front and the back side appears to have two seals that go on it (labeled 2 and 3 on the diagram). It seems I want #2 which is labeled: SHAFT SEAL, DRIVE SHAFT - 17X28X7 (Part #23 12 7 705 085). The other option is #3 which is labeled: SHAFT SEAL - 25X40X7 (Part #23 12 7 705 087). Can someone confirm which is correct? I'm going to call the dealer tomorrow as well to see if they have them in stock. Ideally I can get it all buttoned up tomorrow.

    On another note, I was amazed at how clean my drive shaft looks, considering it's got 88k miles on it. On this bike, I've never cleaned or lubed the drive shaft once and left it all sealed up (unlike with my 06 where you cleaned the FD side splines and lubed them every time). The boot looks good too, so I just need to get some of that good marine grease it looks like they used on there to make sure it seals up nice and tight again when I reassemble.

    Here's a pic of the output shaft seal:

    i-sz8pvLD-X2.jpg
    Current rides:
    2016 R1200RT Ebony Metallic - 12k miles
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  9. #24
    i should be out riding! wyman.winn's Avatar
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    Quote Originally Posted by natrab View Post
    Digging up this old thread as this leak just cropped up on my former 2013 R1200RT (now my wife's main ride). Noticed oil weeping from the boot between the transmission and swing arm. It was hard to tell from the smell if it was transmission oil and so I took the right panels off and opened the trans filler to find it did look a bit low. I just paid the dealer about 3k miles ago to do the clutch, so they were the last ones to fill the transmission, so it is hard to know if they filled it to the proper level or not (or may have over-filled it....).

    Anyways, I took the swing arm off and I found the missing trans oil as it poured out of the swing arm when I set it down. The seal sure does seem to be the source of the leak and I'm trying to figure out the correct part number to order. The diagram in the microfiche is difficult to interpret since it's looking at the transmission from the front and the back side appears to have two seals that go on it (labeled 2 and 3 on the diagram). It seems I want #2 which is labeled: SHAFT SEAL, DRIVE SHAFT - 17X28X7 (Part #23 12 7 705 085). The other option is #3 which is labeled: SHAFT SEAL - 25X40X7 (Part #23 12 7 705 087). Can someone confirm which is correct? I'm going to call the dealer tomorrow as well to see if they have them in stock. Ideally I can get it all buttoned up tomorrow.

    On another note, I was amazed at how clean my drive shaft looks, considering it's got 88k miles on it. On this bike, I've never cleaned or lubed the drive shaft once and left it all sealed up (unlike with my 06 where you cleaned the FD side splines and lubed them every time). The boot looks good too, so I just need to get some of that good marine grease it looks like they used on there to make sure it seals up nice and tight again when I reassemble.

    Here's a pic of the output shaft seal:

    i-sz8pvLD-X2.jpg
    the seal you need is the 25x40x7...it goes over the output shaft...the other one is for the input shaft on the slave cylinder side of the GB...the giveaway is the diameter of the output shaft...25mm
    ~wyman~

    2015 BMW S1000R - Duke - Black Storm Metallic
    2013 BMW R1200RT - Sassy - Fluid Grey Metallic

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