Hall Effect Vane Sensors

[Altritter]

From Bob_Roller: << serial number of my bike ends with B6385009 >>

Bob, you're exactly 200 ahead of me. The build date of mine is Oct. 1980, so it must have been a matter of a few days.

OK, put me down for one. (I'll keep it in a baggie & throw it into the deal free when I get too old to ride & have to sell the bike.)

[Bengt_Phorqs]

The p/n 2AV54 Vane Switch on the Newark site is really good, but I'm trying to reconcile this with the p/n 12111244088, Ignition Sensor, on the Max BMW microfiche.  They don't appear to be the same thing.  Admittedly I'm mostly electrically challenged (Monte, I never could remove the AA battery from my flashlight) so I would appreciate it if someone could tell me if I'm looking at the right part.

Does the 2AV54 vane switch fit inside the bean can?

[Bob_Roller]

The part number you gave, is for the complete 'bean can' assembly.

List price is $514.49 from BMW.

There are no individual parts available to the general public, unless you have a 'donor' bean can, to take parts off of.

[Bengt_Phorqs]

Ouch!  That hurts just to think about it.  More to the point, does the Hall vane sensor fit inside of the bean can?  If I'm reading the Honeywell drawing correctly it is only about 22.5mm W x 17mm D x 17mm H.  It's been a decade or more since I cracked one of the cans open.  

Having been stranded 150 miles from home before because a Hall vane sensor went out I think it most prudent to be prepared.

[Bob_Roller]

Yeah, it's deep inside the 'canister', a complete dis-assembly of the 'bean can' is required.

If you are wondering, this is not the kind of part that can be easily changed on the side of the road, if it fails.

[steve_wicks]

was quoted R7000 (US$700) out here in the deep south of Africa and R2500 for the correct 1-piece twin coil.

What is in the 'bean can' and what is its real name?

I also bought a Haynes manual for over $70 and that really doesn't tell me much about the electronic ignition.

Are 'bean cans' the same on R100/80/65 etc?

[Bob_Roller]

The nomenclature that is in the BMW parts catalog is an ignition sensor.

The Hall effect sensor, and the centrifugal timing advance mechanism, plus some support plates are what occupy the inside of the assembly.

The same 'sensor' is used on all of the bikes of this era, that have electronic ignition systems.

[nhmaf]

and it is called a bean can cause it does kinda look like a small can of beans..

Yes, indeed replacing that Hall effect sensor inside the trigger unit is NOT a side-of-the-road repair job, but it can be replaced on a bench at home.
Rick at Motorrad Elecktrik can get yours repaired/refurbished if you aren't able to do it yourself, though it will cost less than a new complete trigger unit, it will certainly be more than the do-it-yourself option which hopefully only requires buying the hall effect sensor (also called a "vane" sensor as it detects the passage of a metal "vane" passing by it to cause it to trigger the ICU to drive the coils to spark)

[montmil]

The nomenclature that is in the BMW parts catalog is an ignition sensor.

I have also seen it referred to as the Ignition Trigger Sensor. Motobins site.

Rick at Motorrad Elecktrik can get yours repaired/refurbished if you aren't able to do it yourself...

I had my Ignition Trigger Sensor overhauled through MotorradElektrik. Be advised, Rick does subcontract the work. I experienced an issue when the unit was returned to me after some 4-5 weeks (not Rick's fault) and had to send it back. All told, about a month and a half wait. Works fine, now. Cost is $185 plus shipping.

A short time ago, I bought a disassembled 'bean can' from friend Trolle. He included two of the 2AV54 sensors. Now I have the option of building up a spare can or just holding the parts as spares. Hum...

Monte

[Bob_Roller]

I just received the hall effect sensors yesterday, I ordered 10 .

I need 3, a co-worker wants 2, MrRiden wants 1, Altritter showed interest in 1, so that leaves 3 available if anyone is interested .

Cost is $15 plus mailing costs, which in the US should be around $2.

Newark Electronics charged $16US for shipping, for a 1 pound package, kind of makes purchasing 1 a bit expensive .

[Yikes]

I'd like one, Rob.  I just replaced my bean can with a used one and I want to fix my old one with a new sensor as a spare.  Let me know what to do.

John M

[Bob_Roller]

John,

Send me a PM, and we'll get it set up .

[steve_wicks]

I'm in South Africa and bean cans are like gold and I'm petrified of mine failing ..... so much so that I don't trust my bike for a long trip.

Will a bean can from a R100 or R80 bolt straight in with no mod etc and is that a job that can be done at the side of the road?

[trolle]

Yes to both, but if you do it at the road side be very careful to mark the position of the old can, before you exchange it with a new one or else your timing will be wrong.

greetings from a thunderstormy north

[Yikes]

Ditto to Trolle on that beancan replacement.  I replaced my failing can with a used one from an 82 R100RT and it is a straight replacement.  Two allen screws and switch the electrical clip.  I tried to mark the position to not alter the timing, but it didn't work very well and had to set the timing by ear and looking at the tach.  Not perfect, but it's running OK and much better than the bum can that came out.  I finally broke down and bought a timing light last weekend and will be setting my timing properly this weekend after good long warmup ride.  Hope to repair  the old can with a new sensor to have a spare.

Good luck with yours!

John M