PDA

View Full Version : Hall Effect Sensor rebuild wire

perniculous
08-14-2009, 09:18 AM
My new-to-me 98 R1100RT gave me the gift of a puked HES sensor 2 months after I got it. I got a new one from Beemerboneyard with the intention of rebuilding the old one.

I got some hi-temp wiring but the insulator was so big it made the new harness just too big. Since I'm going to carry this as a spare, and not wanting to actually tear all that apart again to see if it fits, I'm just going to replace the wire. The magically thin and hi-temp wire from mcmaster.com is 8219K56. It's not shielded but I've heard others say that they've rewired theirs and haven't bothered with shielding.

Any thoughts here on shielding that assembly?
perniculous
08-14-2009, 09:21 AM
P.S. I have some of that foil tape for ductwork. Wrap that around then enclose with heat shrink?
MotorradMike
08-14-2009, 08:38 PM
Later versions of the module have dropped the shield.

The wire you bought is likely made for ovens and is meant for higher temperature(and current) than you require. 26AWG teflon is right for this application. Not cheap, not real easy to strip, but temperature resistant, thin, and nice to work with. If you have to buy it, just get the one colour to save $.

Clearance is tight around the crankshaft end of the module and I doubt you'll be able to do a decent rebuild with bulky wire.
MotorradMike
08-14-2009, 08:52 PM
Looked up your 8219k56 cable and see that it's PTFE(Teflon). Good choice. The picture and description have the jacket as a shield.

I don't think you can go wrong with this cable and I bet you find it shielded when it arrives. I know of no reason you can't leave the shield exposed but take care around any mechanical abuse areas.
perniculous
08-14-2009, 10:12 PM
Hi:

I actually did some benchwork this afternoon and redid the harness. This wire is pretty slick and worked well. And you were right that it was shielded. Tricky to get the intersection compact and neat!
MotorradMike
08-15-2009, 07:21 AM
Good job!

Looks like you've done this sort of thing before.
GrumpyOldMan
08-15-2009, 01:26 PM
Perniculous,
Nice job! Did you solder splice the wires or did you use miniature crimp splices? If you used splice connectors, would you please share the source. Thanks.
perniculous
08-15-2009, 02:05 PM
Perniculous,
Nice job! Did you solder splice the wires or did you use miniature crimp splices? If you used splice connectors, would you please share the source. Thanks.

Thanks Grumpy:

I used solder and a wide assortment of cuss words. I first heat shrunk the sensor wires together about 1 1/4" from the sensor with two layers of heat shrink. Then I slipped on heat shrink onto each sensor wire, soldered, then heat shrink. I have one of those hobby alligator clip helpers at work and should have went there to get it, it would have made it easier. After I solder the wires I smash with pliers to smooth out any sharp spots.

Check out the crimps here. http://www.mcmaster.com/#catalog/115/747/=379zsi

This particular one looks promising: 9895K11
perniculous
08-15-2009, 02:10 PM
Good job!

Looks like you've done this sort of thing before.

HA! Here's my first crappy attempt! It has that bloated feeling.
MCMXCIVRS
08-17-2009, 10:44 AM
A good source for the wire is an aircraft electronics shop. Very common wire for them and it is the really thin stuff (airplane people are always worried about weight and bulk) and you know it'll be quality stuff (those pesky regulations they deal with all the time ensure that). I was lucky to get enough to rewire my HES in trade for a box of doughnuts for their coffe break.
perniculous
08-17-2009, 10:14 PM
A good source for the wire is an aircraft electronics shop. Very common wire for them and it is the really thin stuff (airplane people are always worried about weight and bulk) and you know it'll be quality stuff (those pesky regulations they deal with all the time ensure that). I was lucky to get enough to rewire my HES in trade for a box of doughnuts for their coffe break.

Do you know of an online aircraft supply place? I'm looking for some kevlar ribbon and cord.

So do you put the donut around the crankshaft before or after you put on the HES? :laugh:laugh
MCMXCIVRS
08-18-2009, 09:39 AM
Do you know of an online aircraft supply place? I'm looking for some kevlar ribbon and cord.

So do you put the donut around the crankshaft before or after you put on the HES? :laugh:laugh

I never looked around online, I live near the airport and know some aviation people, so I just went where they suggested.

The doughnuts are for the mechanic not the bike. You need to install them prior to starting the job, then follow up by installing more after. :D Coffee based additive is good too.
RonaldP
08-19-2009, 08:19 AM
Try this place :)

http://www.aircraftspruce.com/


Ron