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post #1 of 28 Old Oct 13th, 2011, 4:27 pm Thread Starter
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Strange behaviour

I have noticed that my topcase sometimes comes open after going over a bump. Today, I had to stop three times as it 'just came open' even if I lock it before setting off again. Obviouslty it doesn't open all the way but a thud can be heard after going over a bump etc. Is there a fix for this as it quite annoying especially as I know I locked it?
Thanks in advance, Martin

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #2 of 28 Old Oct 13th, 2011, 5:42 pm
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Re: Strange behaviour

That is a new one. Try pressing the top of the case down hard and see if the latch opens. If it does then check the little roll pins in the lid where the hooks go. I'll bet the hooks have "sawed" a groove in them. If so then this is an easy fix. BMW does not sell the pins but I am sure you can find a substitute. May even be able to turn them around so a new surface is presented.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #3 of 28 Old Oct 13th, 2011, 6:46 pm
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Re: Strange behaviour

What John sez. And if your pins aren't usable, you can find replacement pins as described by Bob Menton listed in this post. Good luck.
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post #4 of 28 Old Oct 13th, 2011, 8:29 pm
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Re: Strange behaviour

Thanks Dick I knew I had seen part numbers but I could not find them. How do keep track of all those posts?

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #5 of 28 Old Oct 14th, 2011, 4:31 am Thread Starter
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Re: Strange behaviour

There are little grooves worn into the pins. It'll probably be cheaper and easier to have the local machine shop make some pins. However, looking at the length of the hooks it must take quite a force to push them back so the pins can 'escape' and the top case opens even over the smallest bumps

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #6 of 28 Old Oct 14th, 2011, 6:16 am
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Re: Strange behaviour

Quote:
Originally Posted by jzeiler
Thanks Dick I knew I had seen part numbers but I could not find them. How do keep track of all those posts?
I admit I just git lucky once in awhile, John. I didn't even remember to check the part number list (I think they're in there somewhere?). I do use the 'search' function a lot, cuz my memory bank has blown out too damn many candles over the years!!

Edit: Hey, John. Thanks for the hint about part numbers. Sure enuf, they were in there.

These pins from the K11LT EXACTLY fit the rear trunk lid of the K12LT. The K12LT parts list does not separately call out these latch pins.
46-54-2-316-317 Pin ($1.65 ea.)
07-11-9-932-815 E-clip ($0.10 ea.)

Last edited by Dick; Oct 14th, 2011 at 6:22 am.
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post #7 of 28 Old Oct 18th, 2011, 4:18 am Thread Starter
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Re: Strange behaviour

If I were to put a sleeve over each pin, should that hold the lid closed?

What I cannot understand is how the lid can 'pop open' even after locking it! This morning I checked the lid TWICE before setting off for work, I even gave the lid a gentle tug as I was riding along, it was still closed. Upon arriving in the city another motorcyclist pulled along side and said the lid was bouncing as I was riding along. Upon parking up at work I checked, the lid was open and the locking arms were still locked in place and with very little free play on them. I can't see anyway they could have been pulled open then snapped shut again.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"

Last edited by martin280s; Oct 18th, 2011 at 8:04 am.
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post #8 of 28 Old Oct 18th, 2011, 11:38 am
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Re: Strange behaviour

Hi , check if the pins are worn through and the hooks slip through under pressure.

Manfred
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post #9 of 28 Old Oct 18th, 2011, 11:51 am
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Re: Strange behaviour

If the hooks are closed and it is still opening , then maybe the hooks never engaged the pins. Close it and lock it then try to lift the lid. If it opens then the hooks were not engaged. If it doesn't open then I am at a loss to explain how it can open going down the road.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #10 of 28 Old Oct 18th, 2011, 12:01 pm Thread Starter
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Re: Strange behaviour

Quote:
Originally Posted by jzeiler
If the hooks are closed and it is still opening , then maybe the hooks never engaged the pins. Close it and lock it then try to lift the lid. If it opens then the hooks were not engaged. If it doesn't open then I am at a loss to explain how it can open going down the road.
I too can't understand what's happening because after closing the lid I try to open it without using the lock mechanism and it won't open. However, when I pull up after the lid has magically opened the locks are in what seems to be the correct position!

Can I post pictures here, maybe the locks are NOT in the correct position. They sit horizontally, that is correct isn't it?

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #11 of 28 Old Oct 18th, 2011, 12:18 pm
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Re: Strange behaviour

Martin - unlock the keyed latch plate and pull it out at the bottom; open/lift the lid to the max position and leave it open; push in the latch plate and watch the action of the two pin ARMS as they close over the location where the pins would normally be. Now try to move the ARMS. Do they move at all? Now lock the latch plate and try to move the ARMS again. Any movement?
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post #12 of 28 Old Oct 18th, 2011, 12:21 pm Thread Starter
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Re: Strange behaviour

Dick, I'll give it a try later on. the bike ins in the garage and I'm at work. Thanks for trying to help.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #13 of 28 Old Oct 18th, 2011, 6:52 pm
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Re: Strange behaviour

I am with Dick on this one. The hooks should not move at all once you close the latch plate. If they do it is time to pull the liner and have a look at the mechanism. There are little "E" clips that can pop off of the linkage pins and cause all kinds of grief. Mostly a top case that won't open even with the latch pulled out.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #14 of 28 Old Oct 18th, 2011, 9:16 pm
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Re: Strange behaviour

Lock the case with it closed and see if it still happens. I don't see how it could possibly open up without the latch opening up as well. If it does, something must have failed in the latch.


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post #15 of 28 Old Oct 19th, 2011, 4:25 am Thread Starter
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Re: Strange behaviour

Thanks to everyone here for offering suggestions. I have a feeling that the mechanism is at fault as I have discovered there is some play on the hooks which IS allowing the topcase to open even when locked. The next issue is do I remove the liner to check the circlips etc.?

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #16 of 28 Old Oct 19th, 2011, 7:43 am
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Re: Strange behaviour

Aside from your situation, I'm curious as to how the top lid is moving when open? I rarely actually latched my 02 and it never opened or moved when I was riding. Latching and locking was a rare event.

Must be some very bumpy roads and worn shocks?

Dano
Tampa, Fl.

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post #17 of 28 Old Oct 19th, 2011, 7:58 am Thread Starter
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Re: Strange behaviour

Quote:
Originally Posted by DanDiver
Aside from your situation, I'm curious as to how the top lid is moving when open? I rarely actually latched my 02 and it never opened or moved when I was riding. Latching and locking was a rare event.

Must be some very bumpy roads and worn shocks?
All down to bumpy roads and urban areas tend to have a lot of speed bumps, funnily enough called 'spring breakers' in the local language. However, if you go over them too fast it's not funny at all!

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #18 of 28 Old Nov 29th, 2011, 3:28 pm Thread Starter
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Re: Strange behaviour

Upon arriving home from work today I noticed that my top case was difficult to close. After further investigation it truns out that the 'bridge' which holds the locking mechanism has come loose. The rivets have worked themselves out of their holes! I think the best fix will be small SS bolts and nuts with nylon locking rings.

Has this ocurrence happened to anyone else?

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #19 of 28 Old Nov 29th, 2011, 5:01 pm
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Re: Strange behaviour

That is a new on me. Sounds like your idea to fix them will work just fine. Glad you found the reason.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #20 of 28 Old Dec 2nd, 2011, 3:10 am Thread Starter
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Re: Strange behaviour

After just replacing the central rivet with a SS nut and bolt, the mechanism seemed to work fine. I got to work this morning just to discover I can't open the topcase anymore! I tested everything before putting the bike to bed and has no issues at all. Now the problem is how can I open the topcase without damaging it?

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #21 of 28 Old Dec 2nd, 2011, 7:09 pm
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Re: Strange behaviour

If one of the "e-clips" came loose and a pin fell out you will have to jostle it to open it. I had this happen the first time I took it all apart. I panicked but then rode the bike home and it opened. One side would not control the hook but it worked its way loose during the ride. Good luck.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #22 of 28 Old Dec 3rd, 2011, 2:19 am Thread Starter
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Re: Strange behaviour

Quote:
Originally Posted by jzeiler
If one of the "e-clips" came loose and a pin fell out you will have to jostle it to open it. I had this happen the first time I took it all apart. I panicked but then rode the bike home and it opened. One side would not control the hook but it worked its way loose during the ride. Good luck.

I hope you right! I don't fancy damaging the topcase at all. I ride a lot of KM anyway so hopefully it work itself loose over the next few days.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #23 of 28 Old Dec 3rd, 2011, 9:20 am
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Re: Strange behaviour

I think it is possible to remove the plastic trim on the front of the case and carefully grind off the rivets which hold the hinges. Once that is done you might be able to manipulate the latch arms using a thin piece of metal to open it.


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post #24 of 28 Old Dec 4th, 2011, 4:25 am Thread Starter
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Re: Strange behaviour

I went into a local auto repair shop and picked up some stiff wire which I bent into a L-shape. Carefully pushing it though the unlocked side I was able to coax some movement out of the latch and popped the topcase open. Looking from the back, the left side pin had come out. I now think I'll put those two tie-wraps, as suggested in another thread, in place as an emergency measure.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #25 of 28 Old Dec 4th, 2011, 4:40 am Thread Starter
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Re: Strange behaviour

I went into a local auto repair shop and picked up some stiff wire which I bent into a L-shape. Carefully pushing it though the unlocked side I was able to coax some movement out of the latch and popped the topcase open. Looking from the back, the left side pin had come out. I now think I'll put those two tie-wraps, as suggested in another thread, in place as an emergency measure.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"
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post #26 of 28 Old Dec 4th, 2011, 10:56 am
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Re: Strange behaviour

Yeah!!! Always good to get a stuck one open the easy way. I put the cable tie emergency open set up in 6 years ago but have not had to use it yet. Just make sure those little E-clips are tight and be carefull when you install the liner so you don't knock one off.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #27 of 28 Old Dec 5th, 2011, 4:13 am Thread Starter
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Re: Strange behaviour

John, I remember having read your post about using cable ties. Could you refresh my memory as to exactly how you did it? Thanks a lot.

1999 BMW K1200LT "Galatea"
1976 MERCEDES-BENZ 280S "Lady Genevieve"
1993 MERCEDES-BENZ S320 "Lady Audrey"

Last edited by martin280s; Dec 5th, 2011 at 4:19 am.
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post #28 of 28 Old Dec 5th, 2011, 11:07 am
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Re: Strange behaviour

Martin,


Look at post #5 in this thread. Cable Ties

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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