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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Thu Dec 13, 2018 1:37 am Post subject: Gear Oil leaks when bike is on center stand. |
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If I put the bike on the center stand and allow it to run till its up to running temp. the bike will.leak gear oil.
I'm pretty sure its gear oil because years ago I added final drive/gear oil after replacing a starter clutch.This smells the same.
I purchased the bike with about 70,000 miles on it.
Bike runs great. Engine oil level never changes.this only occurs when I run the bike to operating temp or beyond while it's on the center stand. It does not happen on the side stand., doesnt happen if I only run it a few minutes on the center stand.
Any ideas? _________________ 1994 K1100RS
1996 K1100RS Special |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Fri Jan 18, 2019 12:02 am Post subject: Re: Gear Oil leaks when bike is on center stand. |
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Jydtw wrote: | If I put the bike on the center stand and allow it to run till its up to running temp. the bike will.leak gear oil.
I'm pretty sure its gear oil because years ago I added final drive/gear oil after replacing a starter clutch.This smells the same.
I purchased the bike with about 70,000 miles on it.
Bike runs great. Engine oil level never changes.this only occurs when I run the bike to operating temp or beyond while it's on the center stand. It does not happen on the side stand., doesnt happen if I only run it a few minutes on the center stand.
Any ideas? |
I thought a little harder about this and looked a little closer.
I need to get my bike up on a stand but I think its transmission oil.
That makes a lot more sense because it drips down onto the exhaust. Cant be gear or final drive oil. Has to be from the transmission.
Anyone have any thoughts?
I seems to only leak if I leave the bike on the center stand and let the bike come up to temperature. As far as I can tell its doesnt like if I start it , jump on a ride. Never had any problems shifting. _________________ 1994 K1100RS
1996 K1100RS Special |
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Flying Duck PsyKotic Waterfowl
Joined: 27 Jan 2005 Posts: 10086 Location: Bumf***, WA
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Posted: Fri Jan 18, 2019 2:54 am Post subject: |
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What do you mean it can't be gear oil? That's what's in the transmission.
Sounds like the boot at the rear end of the clutch pushrod might be worn and leaking. Not a big deal.
_________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
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Scott_Anderson Site Admin
Joined: 05 Sep 2006 Posts: 3119 Location: Central Iowa, USA
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Posted: Fri Jan 18, 2019 8:38 am Post subject: |
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I tend to agree with Duck, probably the push-rod boot, however........
You might want to check the transmission oil fill level, make sure that it isn't overfilled, then leaking out of the top side vent. _________________ Ride safe.
1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.) |
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Flying Duck PsyKotic Waterfowl
Joined: 27 Jan 2005 Posts: 10086 Location: Bumf***, WA
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Posted: Fri Jan 18, 2019 11:15 am Post subject: |
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SA: It won't leak if overfilled. When I bought my RS it had recently been serviced at Ventura BMW and some dolt there had filled the transmission to the brim and it didn't leak out the vent cap. (The front tire was also mounted backwards. I would not recommend Ventura BMW.)
I discovered the overfilled transmission after riding it from Malibu to SF where I stopped at a friend's place to give the bike a post purchase once-over and took the transmission fill plug off to check the gear oil level. _________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Fri Jan 18, 2019 11:37 am Post subject: |
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Flying Duck wrote: | What do you mean it can't be gear oil? That's what's in the transmission.
Sounds like the boot at the rear end of the clutch pushrod might be worn and leaking. Not a big deal.
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Yep your right about the gear oil being in the Tranny LOL. ðŸ˜
Initially I was thinking final drive oil, but the location of the drip kind of rules that out. In the spring I'll check closer but my guess is that boot your showing is the issue. Just threw me for a bit cause I never seemed to have the issue until I decided to flush and refill the cooling system. That required me to have the bike on the center stand running into full operating temperature range. _________________ 1994 K1100RS
1996 K1100RS Special |
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Grunter Flying Brick Rider
Joined: 30 Sep 2015 Posts: 369 Location: North East England
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Posted: Sun Jan 20, 2019 5:19 am Post subject: Leaking Boot |
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These are common on all 'K' bikes up to and including the K1100. Easy and cheap to replace but a bit of a fiddle to refit. Everything is straight forward until you have to fit the flimsy screw clip to hold it onto the back of the casing. The last time I replaced one on my K75, I finished up using a zip tie and that was 6 years ago and it is still good.
If you have the hands and fingers the size of a small child it would be easy - very easy, to fit the original metal one _________________ 1997 K1100LT
1994 R1100RS |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Fri Feb 08, 2019 6:20 pm Post subject: Re: Leaking Boot |
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Grunter wrote: | These are common on all 'K' bikes up to and including the K1100. Easy and cheap to replace but a bit of a fiddle to refit. Everything is straight forward until you have to fit the flimsy screw clip to hold it onto the back of the casing. The last time I replaced one on my K75, I finished up using a zip tie and that was 6 years ago and it is still good.
If you have the hands and fingers the size of a small child it would be easy - very easy, to fit the original metal one |
Ok put in a new battery and cranked it up today. Same thing as in the fall. Started leaking after running for about 5 minutes on the center stand.i attached some pics. Might get a video in later. _________________ 1994 K1100RS
1996 K1100RS Special |
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Mike d Mad Brick Rider
Joined: 19 Feb 2010 Posts: 130 Location: Daventry UK
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Posted: Sat Feb 09, 2019 7:01 am Post subject: |
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You haven't said whether you changed the boot or not.
Mike |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Sun Feb 10, 2019 4:41 pm Post subject: |
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Mike d wrote: | You haven't said whether you changed the boot or not.
Mike |
No I have not changed the boot yet. To cold right now. I need a nice warm day and some time. Its leaked quite a bit in the last year so by now it must need some gear oil too. _________________ 1994 K1100RS
1996 K1100RS Special |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Mon Feb 11, 2019 2:19 am Post subject: |
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Flying Duck wrote: | What do you mean it can't be gear oil? That's what's in the transmission.
Sounds like the boot at the rear end of the clutch pushrod might be worn and leaking. Not a big deal.
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Any idea what this part is called on the BMW parts listing?
I see BMW list a gasket set (kit);as part of the transmission that shows the pushrod . Part # 23001464048. I wonder if that includes the part I need.
Anyone ever order that transmission gasket kit? _________________ 1994 K1100RS
1996 K1100RS Special |
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Flying Duck PsyKotic Waterfowl
Joined: 27 Jan 2005 Posts: 10086 Location: Bumf***, WA
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Posted: Mon Feb 11, 2019 4:46 am Post subject: |
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23131338731 (cup) is what you need.
_________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Mon Feb 11, 2019 8:59 am Post subject: |
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Flying Duck wrote: | 23131338731 (cup) is what you need.
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I appreciate the response.
That looks more like a seal that the push Rod passes through.
Is this the part referred to (circled in red). The part circled looks more like a.boot kind of like on a car axle. Although I suspect that seal/grommet would be behind that and potentially the cause. _________________ 1994 K1100RS
1996 K1100RS Special |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Mon Feb 11, 2019 9:02 am Post subject: |
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Jydtw wrote: | Flying Duck wrote: | 23131338731 (cup) is what you need.
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I appreciate the response.
That looks more like a seal that the push Rod passes through.
Is this the part referred to (circled in red). The part circled looks more like a.boot kind of like on a car axle. Although I suspect that seal/grommet would be behind that and potentially the cause. |
It is too cold for me to mess with this right now. We are expecting more snow and this.might be best addressed using a lift but I do want to be ready when we get back above 40 degrees. _________________ 1994 K1100RS
1996 K1100RS Special |
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Flying Duck PsyKotic Waterfowl
Joined: 27 Jan 2005 Posts: 10086 Location: Bumf***, WA
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Posted: Mon Feb 11, 2019 9:55 am Post subject: |
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That's the only part that seals gear oil into the back of the transmission. (Aside from the output shaft seal.)
The only seal that the clutch pushrod passes through keeps gear oil from going forward. If that seal fails then the bike will leak gear oil at the front of the transmission. That part is 23131239891. (14 in the diagram below.)
_________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Jydtw
Joined: 19 Jun 2018 Posts: 15
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Posted: Mon Feb 11, 2019 1:43 pm Post subject: |
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Flying Duck wrote: | That's the only part that seals gear oil into the back of the transmission. (Aside from the output shaft seal.)
The only seal that the clutch pushrod passes through keeps gear oil from going forward. If that seal fails then the bike will leak gear oil at the front of the transmission. That part is 23131239891. (14 in the diagram below.)
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Ok looks like I will need part #2 possibly 3. Probably 5 and 6 as well. _________________ 1994 K1100RS
1996 K1100RS Special |
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Flying Duck PsyKotic Waterfowl
Joined: 27 Jan 2005 Posts: 10086 Location: Bumf***, WA
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Posted: Mon Feb 11, 2019 3:56 pm Post subject: |
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You just need the #6 cup. The hose clamp is worm driven and reusable. _________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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