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| Thread ID: 137554 | 2014-07-20 08:33:00 | Why does the fuel tank not explode? | mzee (3324) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1379685 | 2014-07-23 11:40:00 | Although... that wire to the sensor might not be shielded, so might still spark within the tank? For all the good reasons already given, and because a fuel tank contains a saturated petrol vapour, the lack of oxygen precludes ignition, hence an explosion is very unlikely to occur, especially if the tank is nearly full. But then, there are no exposed electrical contacts inside the tank itself anyway (see image), that would be tempting fate. Cheers Billy 8-{) |
Billy T (70) | ||
| 1379686 | 2014-07-23 11:54:00 | But then, there are no exposed electrical contacts inside the tank itself anyway (see image), that would be tempting fate. Cheers Billy 8-{) there is on most modern cars. they use standard connections inside the tank. 12v is a low spark risk. |
tweak'e (69) | ||
| 1379687 | 2014-07-23 13:10:00 | there is on most modern cars. they use standard connections inside the that connects to the float arm.. 12v is a low spark risk. True. I replaced a few - wires go to the pump terminals, attached to a vertical lantern shaped carrier (or inside a lunch box type clam type housing), and a kind of a connector that links to the float arm. They then are usually soldered to the outer carrier lid or top. Difficult to remove them, requires a lot of angling about, then getting past the razor sharp opening with minimal clearance. |
kahawai chaser (3545) | ||
| 1379688 | 2014-07-24 05:31:00 | I have come to the conclusion that I do NOT like modern cars. I have just received a quote from a main dealer for a fuel pump for a Suzuki Swift, $660 + GST !!!!! For the pump, regulator & gauge sender assembly $1220 +GST. I can see that some serious modifications may be made to it if the pump packs up. In my youth I owned a 1926 Rugby 4 with wooden wheels and 4.50 x 21" tyres. It had an "Autovac" which was a small tank attached to a vacuum pipe to the inlet manifold. Fuel was sucked from the tank into an upper chamber of the "Autovac". When full, a float valve shut off the vacuum & opened a drain to the lower chamber which fed the carburetor by gravity. It never gave me a moments trouble. |
mzee (3324) | ||
| 1379689 | 2014-07-24 06:11:00 | nissan tried to charge me $50 for a t5 bulb that goes behind the speedo. i ordered one online from a shop in nz i think it cost me $2. | tweak'e (69) | ||
| 1379690 | 2014-07-24 06:47:00 | Try Walbro NZ ( . pro-wholesale . co . nz/walbro-fuel-pumps/" target="_blank">www . pro-wholesale . co . nz) and Airtex (e . g . at ebay) . Both are renown aftermarket brands . No name brands pump cost about 80 to 130 NZ . But with carrier, float and wiring about 200 - 250 NZ on ebay . Maybe search on Trademe . Is your car's pump having issues? Can your hear it priming - should take about 3 secs to prime fully . Failing ones can take up to 7 secs from what I have actually experienced . Also you can test resistance, should be around 2 ohms (need specs for your car) - Repeat this after a few starts;failing pumps will increase in ohms . Current (amps) test if possible . Of course you need direct access to the wiring terminals . Also test the fuse, relay and power supply initially . Voltage drop ( . fuelpumpu . com/news-diagnostics-troubleshooting-fuel-pumps-voltage-drop-test" target="_blank">www . fuelpumpu . com) testing can quickly test for loose connections . |
kahawai chaser (3545) | ||
| 1379691 | 2014-07-24 07:11:00 | . . . . 12v is a low spark risk . You might get a low blow if you test that risk . Make sure your battery is not fully charged, to be sure that it is not over 12 volts . However, in the tricky part of the test you will probably have less than 6 volts . Put on Hi-vis socks for personal safety, then place a nice fat file across the battery terminals . You may note a spark, but of more concern if you have a good husky (non-Lucas) battery may be the red glow of the file where your grasping hand is . Possibly two pairs of hi-vis socks if you are of a nervous disposition, or have a low pain threshold . A wise precaution for carrying out this test is to concentrate on taking notes and photographs while observing and have an apprentice doing the filing . 12 volts has a pretty significant spark risk unless there's a few ohms in the series . ;) |
R2x1 (4628) | ||
| 1379692 | 2014-07-24 11:08:00 | yes you can weld with batteries. but unless you get the wires extremely close it won't spark. it won't arc across terminals at the distance they are in a tank or even in plugs. | tweak'e (69) | ||
| 1379693 | 2014-07-25 07:40:00 | Story about timely Solar Storm report from NASA... www.nzherald.co.nz Fairly good odds of us getting plunged back into the dark ages it seems. Time to dust off the oil lamp and stockpile rice. Or just get fit enough to cycle for transport. Oh yeah, and grow vegies. Pity every other hungry sod will steal them when the sh hits the fan. |
Paul.Cov (425) | ||
| 1379694 | 2014-07-25 09:09:00 | Exploding car fuel tanks may cause a bit of nervousness, but just spare a thought for the poor sods on motorbikes ;) Extreme heat plus extreme pressure could turn the family jewels to diamond. :angry |
R2x1 (4628) | ||
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