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72 Beetle / Fuel Vacuum Hoses / Fuel Gauge Voltage Stabilizer
Hello List!
Ive got a 1972 VW Beetle A few questions that John Muirs Book has shed little light on for me. When I open the gas cap should it be sucking air? Ive got a vacuum in there. Its been doing this since I replaced all the gas vapor recycling hoses. They were all original and cracked. I used vacuum hose until I am advised on something else. An annotated image of the front boot - fuel hoses. http://www.flickr.com/photos/21311899@N03/3704382607/ The gauge indicated 1/4 tank when I ran out of gas. Instead of bending the pivot point / guage needle I opened up the voltage stabilizer and spread the windings apart. This resulted in the needle going way past full and I have only used a gallon so far. By the time I get to empty the gauge may reflect more accurately? Where do I find a replacement voltage stabilizer? There is a toggle switch on the duct work coming off of the shroud. What is this? An annotated photo of the engine compartment - http://www.flickr.com/photos/21311899@N03/3723806343 Aloha Eric |
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72 Beetle / Fuel Vacuum Hoses / Fuel Gauge Voltage Stabilizer
Eric wrote:
> Hello List! > > Ive got a 1972 VW Beetle > > A few questions that John Muirs Book has shed little light on for me. > > When I open the gas cap should it be sucking air? Ive got a vacuum in > there. Its been doing this since I replaced all the gas vapor > recycling hoses. They were all original and cracked. I used vacuum > hose until I am advised on something else. > An annotated image of the front boot - fuel hoses. > http://www.flickr.com/photos/21311899@N03/3704382607/ > > The gauge indicated 1/4 tank when I ran out of gas. Instead of bending > the pivot point / guage needle I opened up the voltage stabilizer and > spread the windings apart. This resulted in the needle going way past > full and I have only used a gallon so far. By the time I get to empty > the gauge may reflect more accurately? Where do I find a replacement > voltage stabilizer? > > There is a toggle switch on the duct work coming off of the shroud. > What is this? > An annotated photo of the engine compartment - > http://www.flickr.com/photos/21311899@N03/3723806343 > > Aloha > Eric Congrats on your find. No telling what the toggle does/did; it's non-stock. Follow the wires and report back. Your fuel system has been "hacked". Go: http://www.oldbeetle.com/pcat/epc.html Click on #25-10 and #25-20 Canister #1 is under the right rear fender/wing. Pipe #8 runs to the front of the car where it connects to the piping under the bonnet. Hose #15 supplies air to the canister to force vapors out to the air cleaner and ALSO to prevent vacuum in the tank. If vacuum forms, the tank could collapse and/or the engine will starve for fuel at highway speeds. If all the bits are missing, the best you can do is leave a small vacuum hose from the tank open to atmosphere (outside the car) to vent the tank. The stabiliser/vibrator is available from most any parts house: http://www2.cip1.com/ProductDetails....WC-113-957-099 Speedy Jim http://www.nls.net/mp/volks/ |
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