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Engine basics => Engine set up tips => Topic started by: James Mills on October 01, 2006, 10:44:59 PM
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What is the best fuel line filter to use?
James
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I use Crap-Traps
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The crap traps are directional-- pay strict attention!
A very good filter Highly reccommended. n1
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I like the 2-part aluminum filters that Richard Oliver sells. $5 each, 5 for $20. If it gets dirty, just cleanthe filter screen, screw it back together, and go.
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I am a fan of RO's filters as well....
I use a pretty good ceramic auto filter as I fill the tank.....
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A lot of folks like the crap trap, but I've been driven nuts twice by "leakers". You don't want your filters to leak air into the fuel line.
ASK ME HOW I KNOW?
I use the aluminum screw apart ones that I can clean. Mine come from H&R Engineering.
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Love RO's filters. Ron. AP^
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I've had one crap trap which leaked. Tied it down on each end with wire and fixed that. It is on my test stand tank.
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I guess the point is...they will leak! Guess when it will happen?
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Didn't relate the info to Melvin of MBS Model Supply, but, I had a plane that was not adjustable. John and I started looking for leaks in fuel line, tank and needle valve assembly. Finally checked the fuel filter and sure enough it a very small leak. Took it apart to check it. Then tightened it back together with a hefty wrench and pliers. No more problems. Another time it was a small cut in the fuel line on a plane that would start and run for a couple of laps and then quit. My son found that one. Later, DOC Holliday
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Personally,I dont use a filter between the tank and the engine.I filter it at the syringe inlet then switch to another filter at the outlet,or I use a smaller fuel jug that has a built in filter. The only problem I have had was self induced from not flushing the flux out of the tank after soldering. This way I can eliminate any posible filter problem if I have a bad engine run.Just a thought.
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Personally,I dont use a filter between the tank and the engine.I filter it at the syringe inlet then switch to another filter at the outlet,or I use a smaller fuel jug that has a built in filter. The only problem I have had was self induced from not flushing the flux out of the tank after soldering. This way I can eliminate any posible filter problem if I have a bad engine run.Just a thought.
Jim,
There is still the possibility of debris from the tank such as plating flaking off or dried up castor. While it is true that not having a filter reduces one element in bad engine runs, if there is enough debris to plug the filter, it will plug the needle valve. A good filter installation is good insurance. I really like the little RO Jett filters, but slip a piece of large fuel tubing over the filter to assure no leaks.
Steve
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It's also amazing how much bits of grass, bugs, and dirt can get into a tank, even if it is only open for the fueling process.
The Sullivan crap traps are nice because they can collect a relatively huge amount of dirt and still work fine. They are less prone to leak if they are strapped down around the middle in the plane.