| [ Total Views: 563 | Total Replies: 9 | Thread Id: 74056 ] |
|
|
 vwombat
A.k.a.: Martoon
Custom Title Time!
Hey Ho - Lets GO!
Posts: 1218
Threads: 48
Registered: January 8th, 2004
Member Is Offline
Location: Tamborine Mountain
Theme: UltimaBB Psyche Blue
Mood: uebergeil
|
 posted on January 14th, 2009 at 07:09 PM |
|
|
Fuel sender rebuild question...
Hi Peeps,
I just bought some 8 amp fuse wire at the shop with the idea to replace that hair fine piece in a fuel sender (3 units here - all with broken wire!!!)
It will probably end up being an exercise in stupidity, as I'm assuming the thinner wire is all about electrical resistance, but anyone want to tell
me what a dick I am before I start the experiment?
|
|
|
vwombat
A.k.a.: Martoon
Custom Title Time!
Hey Ho - Lets GO!
Posts: 1218
Threads: 48
Registered: January 8th, 2004
Member Is Offline
Location: Tamborine Mountain
Theme: UltimaBB Psyche Blue
Mood: uebergeil
|
| posted on January 14th, 2009 at 07:51 PM |
|
|
My multimeter is registering some impedence change with the mechanical action of the float... Off i go to hook it up dry.
|
|
|
Special Air Service
Custom Title Time!
Chief "Gunna"
Posts: 1769
Threads: 210
Registered: October 4th, 2004
Member Is Offline
Location: Old Bar , Mid North Coast , NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: In desperate need of a decent sleep
|
| posted on January 14th, 2009 at 07:54 PM |
|
|
| Quote: | Originally
posted by vwombat
Hi Peeps,
anyone want to tell me what a dick I am before I start the experiment?
|
OK,
you're a dick!!!!!
[size=5] Calling all NSW Mid North Coast Veedubbers
Click Below [/size]
[size=6]Mid North
Coast VW [/size] |
|
|
ratbug
A.k.a.: Andrew Todd
Wolfsburg Wizard
aka toddy101
Posts: 439
Threads: 30
Registered: January 14th, 2003
Member Is Offline
Location: Newcastle
Theme: UltimaBB Pro Blue ( Default )
|
| posted on January 14th, 2009 at 08:13 PM |
|
|
Yeah, you right, it probably won't work.
Even though the wire is thin, it will still be pretty much bugger all resistance. You can buy special high resistance wire from dick smiths which
could work, but who knows what the resistance properties of the original sender is, and you will have to wind the same amount of turns at the same
spacing etc. Too many variables to get it wrong i recon. Can always give it a go though!
|
|
|
stevosky
Officially Full-On Dubber
Posts: 232
Threads: 86
Registered: May 30th, 2003
Member Is Offline
Location: logan city
Theme: UltimaBB Pro Blue ( Default )
|
| posted on January 14th, 2009 at 08:40 PM |
|
|
you can get new resistors from otto 's at Salisbury
Steve
|
|
|
 matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on January 14th, 2009 at 08:51 PM |
|
|
Dont do the fuse wire! It could burn out and if you were silly enough to install it in the tank without bench testing........BOOM
It is resistance wire you need. You could work out the resistance required with a potentiometer, then get the right length wire for the value required
and rewind as necessary.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
 |
|
|
blutopless2
Veteran Volks Folk
DAMSLO
Posts: 2457
Threads: 187
Registered: January 8th, 2004
Member Is Offline
Location: melbourne
Theme: UltimaBB Pro Blue
|
| posted on January 15th, 2009 at 07:53 AM |
|
|
it will depend upon the type of float you have as to the resistance value you need.
had an old one that was broken in my bug years ago that had the cylinder type with the float going up vertically inside the tube... think from memory
it was 20 ohms to 100ohms range.
you need the correct ohms/metre wire to redo these. fuse wire will not do it.
am guessing the arm type float ones use a coil of resistance wire which the arm "wipes" accross to short out the segments to get the right ohms for
the gauge.
these may use coil wire that has the varnish removed on one side (so the rest does not short out together) but only guessing.
good luck with your attempt... let us know how you go with it.
see.... air and water do mix 
1974 1300
1997 MK3 Golf GL
2003 NB Cabrio
2012 Golf VI GTI
2014 Audi A4 Quattro |
|
|
 vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on January 15th, 2009 at 09:12 AM |
|
|
It would be easier to find a second hand sender unit
Did you earth out the gauge to test if the gauge is OK
B4 going to the trouble of trying o repair the sender unit ??
|
|
|
vwombat
A.k.a.: Martoon
Custom Title Time!
Hey Ho - Lets GO!
Posts: 1218
Threads: 48
Registered: January 8th, 2004
Member Is Offline
Location: Tamborine Mountain
Theme: UltimaBB Psyche Blue
Mood: uebergeil
|
| posted on January 15th, 2009 at 01:27 PM |
|
|
Boom! Arf!
It's not the gauge and I'm a bit cynical about a 2nd hand one, what with having 3 units all of which are broken...
I hooked it up (outside the tank - duh!) and there was no resistance regarless of where the float sat. Worth 5 minutes tinkering though!
I have no problem with learning something new every day.
Has anyone attempted and succeeded in what I'm doing?
|
|
|
andrewmurphy
Officially Full-On Dubber
Posts: 307
Threads: 22
Registered: July 3rd, 2005
Member Is Offline
Theme: UltimaBB Pro Blue
|
| posted on January 15th, 2009 at 03:55 PM |
|
|
I can only suggest a strong word of caution, it takes only an extremely small spark to ignite an empty fuel tank.
I would recommend getting a second hand one as well.
|
|
|
