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Tallie Samba Member
Joined: January 05, 2012 Posts: 1 Location: nahoon reef
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Posted: Thu Jan 05, 2012 4:55 pm Post subject: revive sender unit by daverham |
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First time ever on this site. Congratulations to Daverham I have found it very interesting . I could not find the correct wire but instead
i cut a a new board and drilled holes to fit 10 x 27 ohm resistors in series and added some epoxy leveled it off with sand paper will send pictures later |
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porschpow Samba Member
Joined: May 21, 2005 Posts: 1256 Location: Hamilton, NJ / Flanders, NJ
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Posted: Wed Jan 18, 2012 1:29 pm Post subject: |
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this doesn't seem that bad _________________ -1973 Volkswagen Bus Westy (Weekender)
1.8 liter from 1.7(original)
-2011 Subaru Outback
-1986 Honda Magna |
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Daverham Samba Member
Joined: August 27, 2009 Posts: 1397 Location: USA
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Posted: Fri Jun 22, 2012 9:33 am Post subject: |
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Just checking in on an old thread.... Update: 3 years later of daily driving and my fuel gauge/sender has been working famously the whole time. Myth: CONFIRMED! This repair works.
That's all. Carry on. |
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porschpow Samba Member
Joined: May 21, 2005 Posts: 1256 Location: Hamilton, NJ / Flanders, NJ
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Posted: Fri Jun 22, 2012 9:48 am Post subject: |
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Definitelygoodto know this worked! _________________ -1973 Volkswagen Bus Westy (Weekender)
1.8 liter from 1.7(original)
-2011 Subaru Outback
-1986 Honda Magna |
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chrisradioman Samba Member
Joined: September 20, 2007 Posts: 4873 Location: Swansea (Sunny Penllergaer) Wales UK
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Pinetops Samba Member
Joined: March 24, 2007 Posts: 2987
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Posted: Fri Jun 22, 2012 3:34 pm Post subject: |
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Nice job, it's a lot like winding guitar pickups. |
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mikewire Samba Member
Joined: March 22, 2010 Posts: 805 Location: San Antonio, TX
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Angel Encinas Samba Member
Joined: July 24, 2010 Posts: 3 Location: Mexico City
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Posted: Wed Aug 01, 2012 8:58 pm Post subject: Thank You! |
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Wow! Thank You Very Much.
I will update some pics of the sender, and some other of my "real-world" test.
Today, i just bought the NiChrome wire (36 gauge, 16 feet for $3, i couldn't find 32 gauge)
I had to take everything out in the engine bay because my 1974 Bus has a 1600cc engine and i didn't want to drop it.
Greetings From México City! _________________ -1974 T2 Panel Van
-1990 Mexican Bug |
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tkolbo Samba Member
Joined: September 26, 2010 Posts: 43 Location: tacoma, wa
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Posted: Thu Aug 02, 2012 7:07 am Post subject: |
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Does any one know if this repair works on early bays? 69 deluxe has no needle movement at all.
Tyler |
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Angel Encinas Samba Member
Joined: July 24, 2010 Posts: 3 Location: Mexico City
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Posted: Fri Aug 03, 2012 1:29 am Post subject: |
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tkolbo wrote: |
Does any one know if this repair works on early bays? 69 deluxe has no needle movement at all.
Tyler |
No, sorry, a 69 Bay has a Tube Style Sender. _________________ -1974 T2 Panel Van
-1990 Mexican Bug |
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Daverham Samba Member
Joined: August 27, 2009 Posts: 1397 Location: USA
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Posted: Fri Aug 03, 2012 9:24 am Post subject: |
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Right.... but what's inside the tube? I don't know what's in there, but it might operate on the same principles. I would guess that it might. Does anyone know? |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51156 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Fri Aug 03, 2012 9:43 am Post subject: |
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There's just 1 looong wire that is gounded to the top at one end, goes all the way to the bottom and comes back up the other side where it attaches to the gauge terminal, the float moves a contact that bridges the wire and changes the resistance. Here's type 3 one, different length but same principle:
_________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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ned Samba Member
Joined: June 28, 2004 Posts: 1574 Location: Arroyo Grande Ca.
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Posted: Fri Aug 03, 2012 7:02 pm Post subject: |
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I am running the Karman Ghia sender and its a little shorter as mentioned. But it makes a larger reserve. Its doable. |
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Angel Encinas Samba Member
Joined: July 24, 2010 Posts: 3 Location: Mexico City
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Posted: Sun Aug 05, 2012 1:30 pm Post subject: I did it!! |
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Finally, my fuel sender works! Thank You Daverham, love you man!!!
I get progressive readings all the way across the movement in increments of 1-2 ohms, of which 3.4 ohms is full, 67.8 ohms is empty, so it's perfect, no dead spots!
I will post some pics later. _________________ -1974 T2 Panel Van
-1990 Mexican Bug |
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Blood Loss Samba Member
Joined: June 18, 2008 Posts: 129 Location: Baltimore
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Posted: Fri Dec 28, 2012 5:26 pm Post subject: |
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The early ones are easy to fix too.
My gas sender wasn't working (1971 sunroof bus). Repaired it as per this post from another website:
http://www.hallvw.clara.net/fuelsend.htm
Now it works just fine. The thin resistance wires were intact but corrosion between the copper strip and zinc flange prevented current from flowing.
Rather than drilling a hole through the flange and grounding the copper strip externally as illustrated in the article, I wrapped a bare copper wire around the very top of the metal rod that the float slides on, and attached the other end to the copper strip. That did the trick and saved me eighty to ninety bucks. |
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BusBerd Samba Member
Joined: November 19, 2005 Posts: 834 Location: Minneapolis, MN
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Posted: Fri Mar 22, 2013 6:45 pm Post subject: |
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Just finished rebuilding mine. It went ok. Wrapping the wire around was a bit tricky. I was trying to get it tight and smooth out the kinks and I broke the wire. So instead of measuring out 70 ohms and cutting the wore off the spool, I just wrapped the wire straight on to the sender without measuring. It was a bit easier to follow the old wire's grooves on the sender that way. And I came out around 70 ohms.
THen I hooked up the sender to the bus and moved the float noting how it effected the gas gauge on the dash. I (slightly) bent the tabs on the bottom of the sender that stop the float in each direction to compensate for being a little off in either direction until it went from full to empty. I think this should work. It is better than the gauge showing half a tank and then sinking down to empty in the next mile, anyway.
thanks for the fix-it idea. I was a click away from spending money on a new sender. _________________ "The large print giveth and the small print taketh away."
1977 Westfalia Camper Bus 2.0L Fuel Injected Engine, Manual Transmission |
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cutthroat Samba Member
Joined: November 30, 2011 Posts: 5 Location: Bellevue WA
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Posted: Wed Apr 10, 2013 1:27 pm Post subject: |
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Thanks for the tip on fixing fuel sending units. My gauge stopped working a while back. It isn't that a new one is that expensive, mine is the original 1963 and it is great to be able keep it on the car.
You made it so simple to fix mine with your photos. It works like new, thank you very much!!! |
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cutthroat Samba Member
Joined: November 30, 2011 Posts: 5 Location: Bellevue WA
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Posted: Wed Apr 10, 2013 1:30 pm Post subject: |
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Thanks for the tip on fixing fuel sending units. My gauge stopped working a while back. It isn't that a new one is that expensive, mine is the original 1963 and it is great to be able keep it on the car.
You made it so simple to fix mine with your photos. It works like new, thank you very much!!! |
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Wasted youth Samba Member
Joined: July 06, 2012 Posts: 5134 Location: California's Hot and Smoggy Central Valley
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Posted: Mon May 13, 2013 9:08 am Post subject: German VDO unit |
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1973 bus, with a replaced German VDO sender. Unkown age, but was replaced with hole hacked through the cargo area within the last seven or so years. Sender looks in very nice condition, with windings showing some wear from the sweeper, but nice copper/white color. No apparent corrosion.
Dash gage reads 3/4 full when sender float is at highest level. Read 3.2 Ohms at this level, and 73.5 Ohms with float at lowest level. Gage is slow to respond, but consistant and not erratic, to change in float level.
Could the problem lie with the dashboard gage, and not the sender? |
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madmike Samba Member
Joined: July 11, 2005 Posts: 5292 Location: Atlanta,Michigan
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Posted: Thu Sep 05, 2013 1:17 pm Post subject: |
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I just cleaned my 70 Bay with CLR and checked it out of the tank: full is like 7/8 on the gage,, half is about 3/8 so I'll can/will live with it :lol:Madmike _________________ 'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works" |
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