Electronic tech needed!

:gah: My Hiney, is rather chaffed!

:Shrug: Mother Harley in her infinite wisdom no longer produces the fuel guage sending unit to fit my 1989 tour glide part # 75040 and i have had absolutely no luck in obtaining one! I have been trying for two months. I did buy a used one that had the same problem as mine, but thats another story!

It's time to explore different avenues.

The very small wires in the squirrel cage that transmit the signal are broken.
The rest of the sending unit is fine.

:Shrug: You know i'm willing to bet that harley davidson didn't make the half moon shaped wire cage that the sending unit uses to register?
Heck it's probably made in china?

I would almost bet that that same wire cage is used in other applications?

ARE THERE ANY ELECTRONIC TECHS OUT THERE THAT COULD HELP ME OUT ON THIS?

:Shrug: I bet Someone makes that particular little part of that sending unit.
If i could find out who, and figure out a part #, i would have half my problem solved?
Then i would only have the luxury of trying to obtain one little part instead of a whole sending unit?

:Coffee: Any ideas about who i could take that unit to that may be able to take it apart and re-wrap the wires?
__________________

Harley might be able to tell you since they no longer service the part who made the part for them.
Just getting someone to care might prove a problem.......

Not sure if these guys can help or not??

[url=http://tristarrradiator.com/]Rebuilt Fuel Sending Unit Specialist[/url]

[url]http://www.narleychoppers.com/images/store_version1/storelogo/LogoShoppersLogo.jpg[/url]

Go to this dealers web site, it looks like they have it or the replacement for it.

[quote=trikermutha;172537]Not sure if these guys can help or not??

[url=http://tristarrradiator.com/]Rebuilt Fuel Sending Unit Specialist[/url][/quote]
I love it! i shot them an email. Thank all of you for your efforts on my behalf!

Paul

[quote=Sloufoot;172514]Harley might be able to tell you since they no longer service the part who made the part for them.
Just getting someone to care might prove a problem.......[/quote]
yep! thats the problem!

[ATTACH]8297[/ATTACH]

[ATTACH]8298[/ATTACH]

[ATTACH]8299[/ATTACH] click pics to enlarge

[ATTACH]8300[/ATTACH]

Here are pictures of what i am talking about.
Is that plastic piece called a rheostat?

There are very small wires in the bottom of the plastic peice that are broken.

:Shrug:
I found out that the rheostat is wound with a nickel chromium wire.
Does anyone know what it is coated with?

Here is a copy of the conversation between myself and a wire dealer.
What do you think?

:Shrug: He talks more about a coating holding the wires in place, rather than a special coating for spark arresting?


:Coffee::Shrug:
I have sold nichrome wire to other people that were redoing their fuel guage
sending unit so probably yours uses nichrome, too. You would need to use
exactly the same gauge as the original for it to work properly so you would
need to measure the diameter with a micrometer or calipers. Since I only
sell bare nichrome wire, you would need to make sure that two adjacent coils
don't touch each other so would need to wind it with string between the
coils or some other strand for spacing. The existing one probably has a
coating on at least a portion of the coils to keep them in place and you
would need to do the same and I have no idea what kind of material is used
for the coating. Search the internet for sending unit rebuilding or
something like that and maybe someone mentions how they do it and what they
use for a coating, even though the sending unit they are talking about is
for a totally different vehicle. Good Luck, hope this helps some.

Regards,

Gary Jacobs
Jacobs Online LLC
jacobs-online.biz



-----Original Message-----
From: Paul Combe [mailtocombe@bresnan.net]
Sent: Friday, July 5, 2013 3:06 PM
To: [email]sales@jacobs-online.biz[/email]
Subject: what is proper wire?

Harley davidson no longer makes the fuel gauge sending unit for my 1989
tour glide motorcycle.

I cannot find a replacement and can't seem to find out who made the
rheostat.
The wires in the rheostat are broken.

I would like to rewire the rheostat on the fuel gauge sending unit on my
old Harley Davidson. What would the proper type of wire be as it sit in a
fuel tank.
Do you know what the size might be by chance?

I have had a terrible time trying to address this problem.

Thank you for your efforts on my behalf.

Paul Combe

Here is a copy of a conversation i Had with Jacobs. He talks more of a coating to hold the wires in place than for spark arrest.
What do you think?
Quick set epoxy on the backside of the rheostat?


:Shrug:I have sold nichrome wire to other people that were redoing their fuel guage
sending unit so probably yours uses nichrome, too. You would need to use
exactly the same gauge as the original for it to work properly so you would
need to measure the diameter with a micrometer or calipers. Since I only
sell bare nichrome wire, you would need to make sure that two adjacent coils
don't touch each other so would need to wind it with string between the
coils or some other strand for spacing. The existing one probably has a
coating on at least a portion of the coils to keep them in place and you
would need to do the same and I have no idea what kind of material is used
for the coating. Search the internet for sending unit rebuilding or
something like that and maybe someone mentions how they do it and what they
use for a coating, even though the sending unit they are talking about is
for a totally different vehicle. Good Luck, hope this helps some.

Regards,

Gary Jacobs
Jacobs Online LLC
jacobs-online.biz



-----Original Message-----
From: Paul Combe [mailtocombe@bresnan.net]
Sent: Friday, July 5, 2013 3:06 PM
To: [email]sales@jacobs-online.biz[/email]
Subject: what is proper wire?

Harley davidson no longer makes the fuel gauge sending unit for my 1989
tour glide motorcycle.

I cannot find a replacement and can't seem to find out who made the
rheostat.
The wires in the rheostat are broken.

I would like to rewire the rheostat on the fuel gauge sending unit on my
old Harley Davidson. What would the proper type of wire be as it sit in a
fuel tank.
Do you know what the size might be by chance?

I have had a terrible time trying to address this problem.

Thank you for your efforts on my behalf.

Paul Combe