I use the filters mainly just to see what kind of crud, if any, I've
taken on in the fuel. I'd be nice (well, maybe not really) to see
that after stopping at Airport "X" that I got crud in the filters.
They are visible right over my shoulders. And with the valves just
before them in the line, they can be changed/cleaned very quickly.
Yes, the header is down low behind the right seat, with the drain
just above the fabric. I glued a PVC plumbing flange onto the fabric
from the inside, and the drain sticks down into that. It kinda
stiffens the fabric at that point so the hole in the fabric doesn't
vibrate with the wind.
The filter after the header, but before the fuel pump is a "just in
case filter" to keep any crud out of it.
p.s. I just sent off one-half of my ignition system off for
analysis...semi-grounded for now...unless I feel brave.
Lynn Matteson
Kitfox IV Speedster
Jabiru 2200, 562 hrs, and counting...all systems are NOT go, and I'm
back to flying/testing/"guinea pigging"...damn it!
On Oct 7, 2008, at 11:37 AM, Noel Loveys wrote:
>
> Lynn:
>
> I assume your header is before or upstream of your pump. Do you
> have a
> drain on the bottom of the header? With a nice big gascolator like
> that why
> bother with filters at all?
>
>
> Noel
>
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Lynn
> Matteson
> Sent: Monday, October 06, 2008 11:21 PM
> To: kitfox-list@matronics.com
> Subject: Re: Fuel drain
>
>
> What I feel is best for 100LL is no drain valves, therefore no O
> rings at that particular location, then teflon ball valves in the
> down lines into Purolator glass in-line filters (the o-rings
> contained therein have not leaked, swollen, or otherwise caused
> problems in two years) down into the header tank and then forward
> into another glass in-line filter to protect the electric Facet fuel
> pump. The header tank becomes the lowest point in the system,
> therefore my "gascolator." I wasn't using the fuel pump before, but
> now that I've converted to gravity only, I use the boost pump for
> take-off and climbout. Yesterday I switched off the pump at 1000'
> AGL, and it continued to climb for another several seconds...didn't
> record how long...until it started to stumble for lack of fuel. I
> pushed the nose down, and even before the plane got to level, the
> engine caught and ran on gravity feed alone. I then switched on the
> pump just for security. I have shut off the pump and flown for 20
> minutes in normal S & L attitude with the occasional slight climb,
> just to mimic a normal day of flying, and haven't experienced any
> lack of fuel to the engine, other than the steep climb I mentioned
> earlier.
>
> With the pump on, and the plane pitched up and climbing at 1600
> fpm....briefly...then at about 13-1400 fpm, the engine did not suffer
> from fuel starvation.
>
> Lynn Matteson
> Kitfox IV Speedster
> Jabiru 2200, 562 hrs, and counting...all systems are NOT go, and I'm
> back to flying/testing/"guinea pigging"...damn it!
>
>
> On Oct 6, 2008, at 8:39 PM, gary.algate@sandvik.com wrote:
>
>>
>> What is best for 100LL - I have the same problem and are
>> continually replacing O'rings and valves.
>>
>> Regards
>>
>> Gary
>>
>> Gary Algate
>> Classic 4 Jabiru 2200
>> Office Phone: +61 8 8276 7655
>>
>>
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