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1Back to top Go down    Replacing Hall Sensors on Tue Mar 05, 2019 11:53 pm

tinyspuds

tinyspuds
Silver member
Silver member
Morning all,
Dai suggested I might repair my faulty (now replaced) Hall sensors, and I am going to give it a shot. The supplier says I can get any lead legnth I want.
Before reading that I assumed I would just solder the stock 150mm leads onto my spare plate, but is there a better way? E.G. replace the whole cable up to the under tank connector?

Cheers, Stu

Dai wrote:

“        Do it yourself, seriously.

http://www.hallsensors.de/Hall-Vane.htm 

CYHME56 or CYHME56C. You'll need to drill the rivets out and replace them with small bolts; make sure you glue the nuts on with threadlock of some description.


  “


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s.
2007 HD883 Sportster. Bobbed and bettered.
1954 Royal Enfield 350 Bullet. Original.
    

2Back to top Go down    Re: Replacing Hall Sensors on Wed Mar 06, 2019 7:25 am

Dai

Dai
Life time member
Life time member
Use the existing cable from the old HES plate. If you check it and the wiring diagram, you'll see that it has a braided sheath under the outer casing which, in turn, is earthed to the main loom. IIRC it floats free at the HE plate end. The point is that the braid is used to cut down electrical noise as the signal from the HES is tiny. No braid = nasty misfire/no fire at all.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

3Back to top Go down    Re: Replacing Hall Sensors on Wed Mar 06, 2019 7:43 am

tinyspuds

tinyspuds
Silver member
Silver member
Dai,
Beautiful though Ireland is, I seriously think you should consider a move to Kent.
Cheers mate.
S


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s.
2007 HD883 Sportster. Bobbed and bettered.
1954 Royal Enfield 350 Bullet. Original.
    

4Back to top Go down    Re: Replacing Hall Sensors on Wed Mar 06, 2019 8:04 am

charlie99

charlie99
VIP
VIP
did that job a few weeks ago

not hard to do if you have some soldering skills and patience to peen over the standard rivets attached to the sensors , through the backing plate

I think I used a 1/8 drill bit to drill out the original sensors   which matches the new ones , careful how you go










don't forget that the sensors are magnetic and WILL pickup any swarf that exists nearby ...good luck !!


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

5Back to top Go down    Hall Effect Sensor overhaul on Wed Mar 06, 2019 5:02 pm

redrockmania

redrockmania
active member
active member
A review of postings on various forums suggests that HES failure may not necessarily just be sensor(s) failing. It appears that when the original HES were made in the early 1980's, the insulation on the wiring was standard plastic and not a high temperature insulation such as teflon. Some posts suggest that a breakdown of insulation over time due primarily to heat and perhaps vibration/rubbing can cause HES malfunction. The location of the HES and its wiring is hot and harsh - 30 years on, things will no longer be pristine.
My conclusion is if overhauling your HES, not only replace the 2 senders, but also replace the wiring and the protective sheathing with heat resistant items. If the plug connector looks dubious it can be replaced with non-BMW options of the identical type.

    

6Back to top Go down    Re: Replacing Hall Sensors on Wed Mar 06, 2019 9:36 pm

Dai

Dai
Life time member
Life time member
Good point. If you go looking on ebay, you want CY cable, not SY. SY is 50% braid coverage and is galavanised steel. CY is nickel-plated copper (or just copper) and is 90%-100% braid coverage. I don't have an HES cable to hand, but IIRC it was either 1.0mm or 1.5mm dia per core.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

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