fuel filters
#2
RE: fuel filters
JetCat filters!
The only thing to remember is assemble the filter when you start the build, tighten fully, 2 days later you will crank it down more, if you try in another few days it will again go a 64th round. Once seated it will never leak. But from new the O rings do need re compressing
Dave
The only thing to remember is assemble the filter when you start the build, tighten fully, 2 days later you will crank it down more, if you try in another few days it will again go a 64th round. Once seated it will never leak. But from new the O rings do need re compressing
Dave
#5
RE: fuel filters
Dave, I'm glad you posted that, I had a leak appear after 80 odd flights and after checking everything I never did find out where it was coming from.
As I was stripping everything I took the opportunity to check the filter and thought it was a little loose.
No leaks since so I think you hit the nail right on the head, thanks, I can sleep at night now!
Gary.
As I was stripping everything I took the opportunity to check the filter and thought it was a little loose.
No leaks since so I think you hit the nail right on the head, thanks, I can sleep at night now!
Gary.
#6
RE: fuel filters
Gary
I know someone that could have lost a brand new model where one was leaking...from new!
Like anything, guess it needs checking before use.
Dave
I know someone that could have lost a brand new model where one was leaking...from new!
Like anything, guess it needs checking before use.
Dave
#9
Join Date: May 2002
Location: Oxford, UNITED KINGDOM
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RE: fuel filters
Gary,
I assume Dave is referring to my new Ultra lightning. I had two deadsticks in quick sucession, eventually trackked down to a very small leak in the festo fuel filter. I have used them plenty of times in the past but I won't be using them in the future.
Geoff.
I assume Dave is referring to my new Ultra lightning. I had two deadsticks in quick sucession, eventually trackked down to a very small leak in the festo fuel filter. I have used them plenty of times in the past but I won't be using them in the future.
Geoff.
#11
RE: fuel filters
Geoff and Dave, very interesting, as an ex engineer, when I started jets a couple of years ago I thought how well designed they were, mine was if anything overtightened originally with no problems but in those days I checked it every ten flights as per JC manual.
The one I had trouble with I didn't give it so much attention so I guess I asked for it, it certainly was not loose but not mega tight.
We live and learn eh!
Was it leaking past the o ring Geoff?
The one I had trouble with I didn't give it so much attention so I guess I asked for it, it certainly was not loose but not mega tight.
We live and learn eh!
Was it leaking past the o ring Geoff?
#12
Join Date: May 2002
Location: Oxford, UNITED KINGDOM
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RE: fuel filters
Morning Gary,
We are at cross purposes. I believe Dave is referring to the festo filters leaking, which is what happened to me. I have also used jetcat filters previously and never had one leak.
Geoff.
We are at cross purposes. I believe Dave is referring to the festo filters leaking, which is what happened to me. I have also used jetcat filters previously and never had one leak.
Geoff.
#15
RE: fuel filters
Henke, bit over the top maybe but I use a JC large felt clunk filter in the fuel cannister, then the uat filter, then the Jetcat filter.
Everytime I have checked the JC filter (last in line) I have never yet seen anything other than the odd spec of crap so it works for me, triple filtered!
For what a filter costs, nothing usually as they come with the engine, I think it's good insurance!
Gary.
Everytime I have checked the JC filter (last in line) I have never yet seen anything other than the odd spec of crap so it works for me, triple filtered!
For what a filter costs, nothing usually as they come with the engine, I think it's good insurance!
Gary.
#16
Join Date: Dec 2001
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RE: fuel filters
I used Festo filters for years with no problem. Only gave them up coz I couldn't come to terms with the thought of the ever resident air bubble they seem to contain! That said, I never had a flame-out when using one, or a leak.
Cheers,
Dick
Cheers,
Dick
#17
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RE: fuel filters
i use
NO LITTLE FILTERS
NO FILTERS IN THE TANK AND HOPPER
ONE FILTER (FESTO OR JETCAT TYPE) AFTER PUMP (between pump and turbine)
check frequently the filters due to kerosene contamination
NO LITTLE FILTERS
NO FILTERS IN THE TANK AND HOPPER
ONE FILTER (FESTO OR JETCAT TYPE) AFTER PUMP (between pump and turbine)
check frequently the filters due to kerosene contamination
#18
RE: fuel filters
ORIGINAL: madmodelman
Henke, bit over the top maybe but I use a JC large felt clunk filter in the fuel cannister, then the uat filter, then the Jetcat filter.
Everytime I have checked the JC filter (last in line) I have never yet seen anything other than the odd spec of crap so it works for me, triple filtered!
For what a filter costs, nothing usually as they come with the engine, I think it's good insurance!
Gary.
Henke, bit over the top maybe but I use a JC large felt clunk filter in the fuel cannister, then the uat filter, then the Jetcat filter.
Everytime I have checked the JC filter (last in line) I have never yet seen anything other than the odd spec of crap so it works for me, triple filtered!
For what a filter costs, nothing usually as they come with the engine, I think it's good insurance!
Gary.
#19
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Join Date: Aug 2004
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RE: fuel filters
Any time you assmble something that uses an o-ring or any other type of seal it should be lube up real well. A dry o-ring will stretch and bunch up when you tighten the fuel filter. I never had one leak or found that it needed to be tightened up after some use.
John
MAP
John
MAP
#20
RE: fuel filters
The gold metal filters that Jet Central uses are fine - Kingtech uses them to. Also, the larger silver filters that Jet Cat use work fine to. Like others, I don't like the plastic Festo filters. I like the ability to clean the filter if it gets clogged.
Andy
Andy
#21
My Feedback: (48)
RE: fuel filters
Fuel pump gears release tiny metallic particles into the fuel stream as they wear. This is most common on a new pump as it is breaking in. A final filter, just before the engine, is a good idea to trap those particles so that they don't end up clogging an injector or doing other damage. Wren engines, for example, come with a final filter installed under the front cover.
Joe
Joe
#24
My Feedback: (30)
RE: fuel filters
Do you guys clean your filters out before a flying season??? I have a new viper that I flew only a handful of times at the end of last season..Would it be a good idea to take the filters apart before this season?? Would like to hear your spring checkups before the season starts..