R1150GSA Hall Sensor Failure

(RIP) DitchWater · Aug 2, 2012

For anyone who would care to confirm that my Hall sensors are failing please have a read of the following symptoms:

Revs dying, bike stalling and of course the rev counter needle is jumping up and down.

By the way I've just limped the bike to Zaragoza on my first full day of a trip and am also in need of any good ideas, from anyone who may be local, about where I may find a mechanic who has the tools to remove the tight nut on the alternator pulley wheel.

What a start. And it's August so the place is closing down for the month :blast

Canuck · Aug 2, 2012

Is there nothing in your tool kit?

(RIP) DitchWater · Aug 2, 2012

Yes, I have a complete BMW tool kit and some extras but I can't remember if the wheelnut wrench fits the nut on the alt' pulley.

I'm just going to load my .pdf manual onto this machine and see what it says.

Uncle Rob · Aug 2, 2012

DitchWater said:
about where I may find a mechanic who has the tools to remove the tight nut on the alternator pulley wheel

I'm sure I have read that you can undo that by just hiting the starter button with a spanner on the nut

Canuck · Aug 2, 2012

I've been looking for bmw bike dealers in the are you are in but I'm rubbish as I can't find anything... would probably help if I could speak spanish. I'll keep looking though.

It should not take long to take your front cover off... the black one... you'll instantly be able to tell whether you can take the bolt off yourself... I can't remember the size of the nut!

Timolgra · Aug 2, 2012

Shapeshifter said:
I'm sure I have read that you can undo that by just hiting the starter button with a spanner on the nut

You're right there Rob

(RIP) DitchWater · Aug 2, 2012

Shapeshifter said:
I'm sure I have read that you can undo that by just hiting the starter button with a spanner on the nut

I think you're right. :thumb2

Canuck said:
I've been looking for bmw bike dealers in the are you are in but I'm rubbish as I can't find anything... would probably help if I could speak spanish. I'll keep looking though.

It should not take long to take your front cover off... the black one... you'll instantly be able to tell whether you can take the bolt off yourself... I can't remember the size of the nut!

Doing the same but I'm starving, smelly and just having a search on google. My Spanish has come on leaps and bounds today.

Ugly Cow · Aug 2, 2012

DitchWater said:
Yes, I have a complete BMW tool kit and some extras but I can't remember if the wheelnut wrench fits the nut on the alt' pulley.

I'm just going to load my .pdf manual onto this machine and see what it says.

Sorry the wheelnut wrench does not fit the crankshaft pulley bolt.

Fanum · Aug 2, 2012

Shapeshifter said:
I'm sure I have read that you can undo that by just hiting the starter button with a spanner on the nut

That sounds like one of those things that you REALLY ought to do at home first.

I should imagine that it's just as easy to break your wrist or finger whilst trying that technique in the wild for the first time :blast

PS I've no doubt it works BTW......it's just the image of a bloke kneeling by the bike holding a spanner, someone pinging the starter button and it just ending up in tears.

If you DO try it, do us a favour and video it? :augie

Timolgra · Aug 2, 2012

Why would you be holding the spanner? :blast

Popell · Aug 2, 2012

I don't like the sound of holding it by hand - would it not be possible to brace the spanner against some hard chassis part?
I would also take the plug caps off to ensure it doesn't start

Just driven back from southern Spain - had to stop in San Sebastian to get the front wheel bearing replaced on the Seat Leon!! Diagrams and google translate proved invaluable - and I reckoned that I could speak enough to get by!!

Timolgra · Aug 2, 2012

Popell said:
I don't like the sound of holding it by hand - would it not be possible to brace the spanner against some hard chassis part?
I would also take the plug caps off to ensure it doesn't start

Yes but I wouldn't do that on a 1200, it risks ripping the starter ring teeth off (cheap shite, pressed steel) which is what sometimes happens when they get hydrauliced with water

Uncle Rob · Aug 2, 2012

Here post No 4

Two wheels good · Aug 2, 2012

Spanish dealers - supposedly ordered by distance from Z.
HES = "Sensores de efecto Hall" - online translation
Not sure if you need to prefix 0 on tel nums when local

Moto 2 Huesca
Calle Badajoz n 7
22004 Huesca
Teléfono: +34 974215958

Moto 2 Viana
Avda les Garrigues, 44-bajos
25001 Lérida
Teléfono: +34 973225138

T. Sebas
Avda. de Valladolid, s/n
42005 Soria
Teléfono: +34 975233675

Motos Javier
C/. Rio Urrobi, 16
31005 Pamplona
Teléfono: +34 948245389

Mor Automoción
Polígono Los Hostales, Nave 1-1
44195 Teruel
Teléfono: +34 978606600

west coast traveller · Aug 2, 2012

Shapeshifter said:
Here post No 4

I used socket and bar and used a rag to wedge against chassis. Cracked the bolt loose first press of the starter button. First gear and foot on the rear brake allows you to tighten back up to the right torque.

(RIP) DitchWater · Aug 3, 2012

Two wheels good said:
Spanish dealers - supposedly ordered by distance from Z.
HES = "Sensores de efecto Hall" - online translation
Not sure if you need to prefix 0 on tel nums when local

Moto 2 Huesca
Calle Badajoz n 7
22004 Huesca
Teléfono: +34 974215958

Moto 2 Viana
Avda les Garrigues, 44-bajos
25001 Lérida
Teléfono: +34 973225138

T. Sebas
Avda. de Valladolid, s/n
42005 Soria
Teléfono: +34 975233675

Motos Javier
C/. Rio Urrobi, 16
31005 Pamplona
Teléfono: +34 948245389

Mor Automoción
Polígono Los Hostales, Nave 1-1
44195 Teruel
Teléfono: +34 978606600

west coast traveller said:
I used socket and bar and used a rag to wedge against chassis. Cracked the bolt loose first press of the starter button. First gear and foot on the rear brake allows you to tighten back up to the right torque.

Shapeshifter said:
Here post No 4

Thanks Chaps.

I've just had a night out in Zaragoza having a few cerveza's, some tapas, a look at the catherderal & museum, and of course the beautiful chica's with their sun kissed olive skin. :augie

In the morning I'll order my parts, have a look behind the cover and check that 16mm nut, book another couple of days in the hotel and get my shorts and sandles out of the boxes.

Hasta luego.

Womble · Aug 3, 2012

DitchWater said:
For anyone who would care to confirm that my Hall sensors are failing please have a read of the following symptoms:

Revs dying, bike stalling and of course the rev counter needle is jumping up and down.

By the way I've just limped the bike to Zaragoza on my first full day of a trip and am also in need of any good ideas, from anyone who may be local, about where I may find a mechanic who has the tools to remove the tight nut on the alternator pulley wheel.

What a start. And it's August so the place is closing down for the month

Have you checked the connector to make sure there's no rust in there, or whether the wiring could be replaced - for the sake of a couple of hours to do some soldering or a squirt of WD40, you could be on your way again. There are a few useful links on this thread - http://www.ukgser.com/forums/showthread.php?t=309674

MattW · Aug 3, 2012

Steptoe told me about the wrench on the nut and tap the starter button thing. Sounded a bit scary but worked a treat on my 1100. I wouldn't try it with less than a 12" ratchet though and the emphasis is on 'tap' the starter button. I also unplugged the injectors to stop it trying to start - that could get a bit interesting

Scribe the position of the hall sensor plate so you can fit the new one in the same place. You can check the timing by turning the engine over (spanner on the crankshaft nut) with the ignition on - listen for the fuel pump priming as the timing marks (little rubber plug, right hand side) come into line. That said, mine was spot on just by fitting the hall sensor plate in the same place.

Hope it works out :thumb2

Steptoe · Aug 3, 2012

Fanum said:
That sounds like one of those things that you REALLY ought to do at home first.

I should imagine that it's just as easy to break your wrist or finger whilst trying that technique in the wild for the first time

Popell said:
I don't like the sound of holding it by hand - would it not be possible to brace the spanner against some hard chassis part?
!

Jesus chirst - There is no torque - a five year old could hold a spanner and do it. I've even used use the method with a short open ended spanner.

Try it before you start posting dire warnings .

Nobby · Aug 3, 2012

Steptoe said:
Jesus chirst - There is no torque - a five year old could hold a spanner and do it. I've even used use the method with a short open ended spanner.

Try it before you start posting dire warnings .

R1150GSA Hall Sensor Failure

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