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Home › RC & Power › ✈️Aircraft › 🚁Helicopter › Engines Plugs Mufflers Fuel › Keep fuel tank full or empty?
08-07-2019 02:43 AM  10 days ago
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SoCal Scott

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Kailua, Hawaii

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Keep fuel tank full or empty?
I’ve been reading mixed things on whether it is better to keep my tank fueled if I shelve things for a few weeks.
Is it better on the grommets to keep them saturated with fuel so they don’t shrink and leak when I come back? Or will this just cause them to degrade anyway and I might as well just plan on replacing them either way??

Thanks!
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08-07-2019 08:29 AM  10 days ago
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flyalan

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Hendersonville, TN

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I store with fuel. Dried grommets will fail much quicker. Ran into this at IRCHA. A customer came to me about the grommets failing frequently. That was the first question I asked. He always stored dry. I replace grommets maybe every couple years.
Also I run the tried and true fuel magnets which do not do well stored in an empty tank.
Cheers
AlanHelilids RC Hobbies
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08-07-2019 08:42 AM  10 days ago
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SoCal Scott

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Kailua, Hawaii

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Thanks! I’ll give it a go.

Any recommendations for what kind of tubing I should be using for clunk line? Last time I replaced the grommet, I noticed the tubing was a bit gummy as well. Or is that also from a dry tank? Still kind of new to the nitro scene.
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08-07-2019 03:15 PM  10 days ago
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wjvail

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Meridian, Mississippi

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Fueled and capped! By capped I mean don't leave a means for air to get to the tank. If you use muffler pressure, fuel it (full) then pull both lines and cap them. If you have an OS with DRS or YS with it's pressure/regulator system, no need pull and cap them. They are already sealed. Still, refuel after each flight."Well, nothing bad can happen now."
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08-07-2019 03:24 PM  10 days ago
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wjvail

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Meridian, Mississippi

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SoCal Scott...
Any recommendations for what kind of tubing I should be using for clunk line? Last time I replaced the grommet, I noticed the tubing was a bit gummy as well. Or is that also from a dry tank? Still kind of new to the nitro scene.
Hayes Neoprene has been my go-to for decades. In fact, I have tanks that have had the same tubing in them for 20+ years. I have a fairly good stash around here. Unfortunately it may be hard to find these days. MECOA now owns the Hayes product line and they sell tanks (I bought two last week) and seem to offer the tubing. https://www.mecoa.biz/shopexd.asp?id=4869

If I run out of Hayes I will likely try Sullivan ProFlex next. I haven't used it yet but they say all the things I want to hear for the application. https://www.towerhobbies.com/cgi-bi...AiABEgKcMvD_BwE"Well, nothing bad can happen now."
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