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Aug 17, 2018 17:47:41 GMT
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Weirdly enough rust seems to have gotten a LOT worse since then, even though only fresh gas has been inside since... Even the filler neck is covered in rust... Now you mention it, I've had similar. I checked inside the tank before it went in the car, and it was basically clean. I had to remove the tank sender unit (which has the fuel pickup in as well) after a bit for other reasons, and it was covered in light rust. I've got an issue with the carb valves sticking now, which turns out to be (probably) linked to this getting into them: So I had a pretty clean tank, new fuel pipes, a new fuel pump (which I've had to replace because it failed), an inline fuel filter, a gauze filter in the pump, but this gets into the carbs. That said, the valves should have a filter "hat" on them which is missing, but the other two filters should surely have helped.
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Aug 19, 2018 13:20:19 GMT
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sounds like ballast resistor issue. all of which could be solved and future proofed with a low cost high quality electronic ignition module
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Milord
Part of things
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Posts: 156
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I've since tried to clean the tank, but it truly is hopeless.
I can get most loose rust particles out of the tank, but the rust is too significant to completely remove.
I haven't found any company that can help me get rid of it, so the most logic solution seems to be to have someone weld me a new gas tank.
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Currently: BMW E46 320i Touring BMW E34 525TDS Touring VW T3 panel van 1.6d Opel Kadett C1 Caravan 1.2 Fiat 411R
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the cement mixer failed you ? along with acid?
a custom tank will cost a fortune to make
id be renting a mixer for the weekend , should be under £50 , run it with some citric acid and hot water with a few handfulls of gravel , any holes will have to be welded up
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91 golf g60, 89 golf 16v , 88 polo breadvan
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I've heard molasses is a good way of cleaning the inside of a fuel tank, and relatively cheap. Just mix some up (I forget the ratio, but it'll be on the net somewhere), bung up most of the holes and stick it in to soak.
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Aug 23, 2018 17:32:13 GMT
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I've since tried to clean the tank, but it truly is hopeless. I can get most loose rust particles out of the tank, but the rust is too significant to completely remove. I haven't found any company that can help me get rid of it, so the most logic solution seems to be to have someone weld me a new gas tank. If definitely rust and not fossilised hydrocarbon crud (which look similar and produces similar looking coffee grounds in filters, it can be removed in a variety of ways. Bilt Hamber Deox, or simply a citric acid solution. Both work better/quicker warm. You can use dilute phosphoric acid afterwards to passivate. There is also the slosh sealant option. Various brands out there but no personal experience. Make sure you get one that is ethanol resistant Nick
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1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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