2 1/16 VDO Fuel Gauge (which one again?) |
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2 1/16 VDO Fuel Gauge (which one again?) |
Root_Werks |
Jun 22 2020, 10:48 AM
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#1
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Been searching the forums and cannot seem to locate which one of the VDO Cockpit fuel gauges work with our 914 sending units?
10-180 ohms 10-65 ohms 0-90 ohms Putting a 911 combo oil temp/press gauge in the 914 hole and using a 2 1/16 fuel gauge in the dash. Thanks and sorry in advance if my lack of search skills shows this has already been covered. (IMG:style_emoticons/default/smile.gif) |
sixnotfour |
Jun 22 2020, 11:20 AM
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#2
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914 Wizard Group: Members Posts: 10,414 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
pn on gauge ?? ...then its easy
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914Sixer |
Jun 22 2020, 11:22 AM
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#3
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914 Guru Group: Members Posts: 8,872 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
0-90 if I remember correctly. Let some one else chime in too.
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Root_Werks |
Jun 22 2020, 11:26 AM
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#4
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
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Root_Werks |
Jun 22 2020, 11:26 AM
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#5
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
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sixnotfour |
Jun 22 2020, 11:38 AM
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#6
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914 Wizard Group: Members Posts: 10,414 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
pn on gauge ?? ...then its easy Thanks Jeff, this will actually come in handy to ensure I'm using the correct sending units! oh fuel gauge (IMG:style_emoticons/default/chair.gif) |
theer |
Jun 22 2020, 06:00 PM
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#7
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Senior Member Group: Members Posts: 676 Joined: 31-July 15 From: Dover, MA Member No.: 19,014 Region Association: North East States |
The gauge to sender match-up.. the bane of my existence right now as I try to get German gauges to talk to my Japanese motor/senders.
Stock fuel sender reads 70/90 (reserve/empty) to zero (full). Note: this is backward from some gauges/senders, which are zero at empty. Make sure you verify the range and direction! Here's an old thread where did a detailed analysis of the ohm readings vs volume (click see attachment a few posts down): http://www.914world.com/bbs2/lofiversion/i...php?t72926.html |
Literati914 |
Jul 22 2020, 11:40 AM
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#8
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Senior Member Group: Members Posts: 1,443 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
.. Stock fuel sender reads 70/90 (reserve/empty) to zero (full). Note: this is backward from some gauges/senders, which are zero at empty. Make sure you verify the range and direction! .. I have a VDO fuel gauge (301 220) whose range is "60/90-0.5 OHM" .. my auto-electrical understanding is very limited but this seems close enough to me. What could I expect from the gauge if using this with a stock sender? Would it even work at all? . |
914forme |
Jul 22 2020, 12:25 PM
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#9
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
VDO 90-0 Ohms unit most of the time Marketed for the VW Beetle sender.
Even VDO does it on the web. Works fine, used one for years in various places in the 914. |
Literati914 |
Jul 22 2020, 02:09 PM
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#10
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Senior Member Group: Members Posts: 1,443 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
.. Stock fuel sender reads 70/90 (reserve/empty) to zero (full). Note: this is backward from some gauges/senders, which are zero at empty. Make sure you verify the range and direction! .. I have a VDO fuel gauge (301 220) whose range is "60/90-0.5 OHM" .. my auto-electrical understanding is very limited but this seems close enough to me. What could I expect from the gauge if using this with a stock sender? Would it even work at all? . VDO 90-0 Ohms unit most of the time Marketed for the VW Beetle sender. .. Works fine, used one for years in various places in the 914. Yes, I know.. but found that out after I bought the '60/90-0.5 ohm' unit.. so, since I have it already AND it's range looks so close - I'd like to use it IF POSSIBLE. Any ideas whether this would 'cause problems with the gauge being way off? . |
914forme |
Jul 22 2020, 05:29 PM
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#11
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
The information that Tom posted has all the resistance values. A variable resistor, and ohm meter, and a 12v power supply is all you need to test, and figure out if you can live the with corresponding results.
chances are if it is 90 ohms, empty, then yes, the 60 Ohms empty then the needle will never be below E. 0 Ohms full, is fine the 0.5 Ohm part will not be a huge deal. Once you know you know, only issue is if someone else drives your car and thinks they have fuel and has to walk 5 miles to the station when they run out, in August on a humid sunny day. BTDT sucked, good news I discovered my fuel float was stuck in the tube, disassembled, cleaned up, worked ever since. Or if you do not want to build a variable resistor, you can use the tank float, take the skin off, and slide the float up and down. Testing done, and now you know if you can live with the gauge. |
GeorgeRud |
Jul 23 2020, 08:47 PM
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#12
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
You can also try to wire up a low fuel warning light as the connections are available on the sender. The gauge may be inaccurate, but the light doesn’t lie (unless bulb’s burnt out).
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Olympic 914 |
Jul 24 2020, 09:11 AM
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#13
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Group: Members Posts: 1,662 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
You can also try to wire up a low fuel warning light as the connections are available on the sender. The gauge may be inaccurate, but the light doesn’t lie (unless bulb’s burnt out). Is the light still dependent on the float traveling up and down? If your float is stuck due to corrosion on the rod or wires does something else trigger the light. |
Root_Werks |
Jul 24 2020, 10:00 AM
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#14
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Picked up the sending unit, now just have to find time to put a growing pile of parts on my 914.
That's right, I remember you loose the low level light. Not a big deal if I recall as the small fuel gauge with sending unit winds up being pretty accurate. I had this setup on at least 2 914's that I can think of. |
Literati914 |
Jul 24 2020, 01:27 PM
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#15
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Senior Member Group: Members Posts: 1,443 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
You can also try to wire up a low fuel warning light .. ..That's right, I remember you loose the low level light. Not a big deal if I recall as the small fuel gauge with sending unit winds up being pretty accurate. Yep, I plan on installing a small red warning light somewhere near the separate fuel gauge - 'cause honestly I don't trust myself not to accidently run it out. BTW, as mentioned, it's usually the VDO beetle gauge 301.020 that's recommended .. but I see it's range is actually 73-10 ohm... and the 914 sender is (said to be) 70/90-0 ohm. So my 0.5 ohm (empty) gauge would theoretically be better. Then in the chart posted earlier - reserve light 'just off' is shown to be 69.5 ohm. I wonder what the true empty number is? |
Root_Werks |
Mar 26 2021, 11:50 AM
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#16
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Son of a Monkey, went for a test drive today to check out cleaned up wiring, new fuel gauge.
Filled the tank to test 1/1 and it went to 0. WTF. Double checked the part number and I don't know if I ordered it or maybe sent the wrong gauge, but it's 301 030 for Beetles, backwards. Update to this thread to help make it searchable. Ensure your VDO part number is 301 220 and the ohms go 90-0 NOT 0-90. |
9146C |
Mar 26 2021, 02:55 PM
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#17
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Member Group: Members Posts: 228 Joined: 14-September 19 From: US Member No.: 23,460 Region Association: None |
Son of a Monkey, went for a test drive today to check out cleaned up wiring, new fuel gauge. Filled the tank to test 1/1 and it went to 0. WTF. Double checked the part number and I don't know if I ordered it or maybe sent the wrong gauge, but it's 301 030 for Beetles, backwards. Update to this thread to help make it searchable. Ensure your VDO part number is 301 220. I was looking online for the VDO 301-220...it's no longer listed on the VDO website and most other sites list as NLA. I built a combo gauge (Bosch Tach and 301-020 fuel gauge) into a modified tach. My fuel gauge currently reads about 5/8 full with only a couple gallons. I still need to do some troubleshooting looking at my sender resistance...I'm hoping maybe I can get away with resetting the needle zero position...still TBD. VDO lists another part number (white needle with an approx 270 degree sweep) with a 90-05 range. A2C3833110030 I'm wondering if this one might be more suitable for those with panel mounted gauges. |
Root_Werks |
Mar 26 2021, 04:08 PM
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#18
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Village Idiot Group: Members Posts: 8,308 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
You can still find some NOS gauges, but yes, learned the same thing. Getting hard to get a hold of now.
The one I ordered today is a 90-05 range. As long as it's close. |
sixnotfour |
Mar 26 2021, 04:54 PM
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#19
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914 Wizard Group: Members Posts: 10,414 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
Full is the new empty...gas prices make it work..
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