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 jakriz
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| posted on January 4th, 2003 at 12:07 PM |
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VDO fuel guage
Is it true that a VDO fuel guage hooks straight up to a beetle sender in the tank??
& if so, where do I get one from?
regards
Jak
[Edited on 4-1-2003 by jakriz]
Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!
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jakriz
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| posted on January 4th, 2003 at 12:23 PM |
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Just spoke to the local Autobahn guy & he said that they have 2 types of VDO fuel guage in stock, I have to find out what my OHMS reading is when
the tank is empty & full??????
Any ideas??
Jak
Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!
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68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
Beetle Restorer - Experience over 138% - YIKES --
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 posted on January 4th, 2003 at 02:09 PM |
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VDO sender
Firstly Jak, You will need a fuel sender installed in Your tank to get the OHMs reading... with a Multimeter...
and You can purchase resistors [in OHMS] for a few cents each at any DSE or Jaycar store, to adjust the gauge-sender difference... or even use a
Variable Resistor -potentiometer... to adjust the difference in OHMs.... etc... Shouldn't be a BIG problem Jak... but You should start with VDO
sender in Your tank... what Model are We talking about here??? Why not just add standard VW components??
I presume You are talking about a Round standard size VDO Fuel Gauge....
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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jakriz
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| posted on January 4th, 2003 at 05:16 PM |
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Yes, I have the standard VDO vw sender in the tank, & I have a multimeter, never used it before as I shy away from electrics big time! & yes
I'm talking about the small round VDO fuel guage. Do u have one hooked up to your beetle??
regards
Jak
Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!
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Secoh
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| posted on January 4th, 2003 at 05:23 PM |
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I used the VDO round gauge in my rally car, along with the VDO sender. it was bought fromj manly instruments way back when. it was a bit of a bugger
with the VDO generic sender actually, the needle used to bounce around with fuel slosh, making it hard to read (particuarly in a rally car bouncing
down goat tracks at 160kph at 10pm :P).
if you can use it with the standard VDO tank sender then I would do so. one way to find out, and if it doesnt match the sender, you'll have to
replace it anyway 
If it aint broke,
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Phil74Camper
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| posted on January 7th, 2003 at 09:59 AM |
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Yes, the aftermarket 52mm VDO fuel gauges will work with stock VW tank senders. I used to use that setup in my Beetle.
The sender has a float inside a long cylinder, riding on two stiff wires. As the fuel level rises and falls, the float goes up and down on the wires.
The electrical resistance varies accordingly, depending on where the float is on the wires, and the gauge converts that into a reading.
The gauge can be calibrated to the sender, where they measure the resistance at top and bottom and then adjust the gauge according to that. The
instrument shop can do that for you if you unbolt the sender and gauge and take them both in.
It will still work uncalibrated, but the gauge may read a little strangely. For example, mine used to drop in a non-linear fashion - it went
three-quarters empty very quickly but the last quarter took ages. Full and empty were accurate enough but when the tank was half full the gauge read
only a quarter full. I just got used to it.
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