The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: georgesgiralt on October 16, 2012, 03:15:07 AM

Title: Bean can Hall sensor second source.
Post by: georgesgiralt on October 16, 2012, 03:15:07 AM

Hello !
I've seen that one may get difficulties finding the Honeywell hall sensor.
An Chinese/European company sells a direct replacement made in .....China. They are based in Germany and I do not know if they sell outside Europe.
a French K-Bike owner says they are cheap and reliable (the sensor and the seller...)
You can find them here :
http://www.chenyang-ism.com/.
And the sensor is  CYHME56
The French guy says they are helpful and knowledgeable.
Hope this helps.

Title: Re: Bean can Hall sensor second source.
Post by: montmil on October 16, 2012, 07:37:08 AM

This is quite helpful. Thanks for sharing your research. [smiley=beer.gif]

Title: Re: Bean can Hall sensor second source.
Post by: georgesgiralt on October 18, 2012, 06:02:40 AM

Ahem....
It seems that my information is incomplete.
This sensor fits. But there are drawbacks :
First you need to add a resistor between 1K to 10 K Ohm between the positive wire and the output. This is no big deal, as you have to solder in the bean can.
But the more annoying part is that this device is not like the Honeywell sensor. It is not shielded. And as our 2V have the alternator in the vicinity, this makes it impossible to use unless you devise a way to magnetically shield it. Otherwise the ignition will cut off when the alternator begins to charge (light goes off)...  So a replacement, yes, but for the more capable of us....

Title: Re: Bean can Hall sensor second source.
Post by: montmil on October 18, 2012, 09:14:38 AM

Rats!

Well, the good news is that it looks as if my stash of four brand-new Honeywell Hall sensors just went up in value... again.

If you think you might want or need a "new" sensor in the near future, it may be a good idea to start looking on eBay for a complete used electronic bean can. Some folks add aftermarket ignition systems and toss the can in a drawer.

Title: Re: Bean can Hall sensor second source.
Post by: Bengt_Phorqs on October 19, 2012, 11:50:17 AM

I have a couple of the HES from Newark myself.  That may just turn out to be a good investment but I'm keeping them for my R1100 oilheads.

Title: Re: Bean can Hall sensor second source.
Post by: georgesgiralt on October 19, 2012, 01:09:56 PM

Well, these are "overkill" for the oilheads.
These have the alternator further and do not suffer from magnetic interference.  So the Chinese sensors are good or oilheads. (and probably designed for them as it seems that the design was made in Germany)

Title: Re: Bean can Hall sensor second source.
Post by: Bengt_Phorqs on October 19, 2012, 05:49:06 PM

No, it's a necessary part of the R1100 firing system.  The problem is that the insulation used on the wiring of the 90's oilheads was made out of some kind of soybean compound.  It is very subjective to deterioration and usually will fail in heavy rains.  I know from first hand experience.  Replacing the HES with the Newark unit solves the problem.

Title: Re: Bean can Hall sensor second source.
Post by: nhmaf on October 19, 2012, 07:44:53 PM

The Chinese units also have different trigger on/off sensitivity compared to the honeywell parts.  I have not had the time or inclination yet to try to get one of the CHM parts to test to see if the change in the output pulse width has any effect on airhead operation.